How To Install A Python Package?

pip is the de facto package manager in the Python world. It can install packages from many sources, but PyPI is the primary package source where it’s used. When installing packages, pip will first resolve the dependencies, check if they are already installed on the system, and, if not, install them.

How do I manually install a package in Python?

How to Manually Install Python Packages?

  1. Step 1: Install Python.
  2. Step 2: Download Python Package From Any Repository.
  3. Step 3: Extract The Python Package.
  4. Step 4: Copy The Package In The Site Package Folder.
  5. Step 5: Install The Package.

How do I install Python packages at once?

Install multiple python packages at once using pip

  1. Using the raw pip install command.
  2. Using requirements. txt with the pip install command.

Where does Python install packages?

Typically, that means Python and all packages will get installed to a directory under /usr/local/bin/ for a Unix-based system, or \Program Files\ for Windows. Conversely, when a package is installed locally, it’s only made available to the user that installed it.

What is pip install?

Pip is an installer for Python packages written by Ian Bicking. It can install packages, list installed packages, upgrade packages, and uninstall packages.

How do I install packages in Anaconda?

Adding default packages to new environments automatically

  1. Open Anaconda Prompt or terminal and run: conda config –add create_default_packages PACKAGENAME1 PACKAGENAME2.
  2. Now, you can create new environments and the default packages will be installed in all of them.

How do you install package in Python What are different ways of installation?

Ways to Install Python Package

  1. Open RUN box using shortcut Windows Key + R.
  2. Enter cmd in the RUN box. Command Prompt.
  3. Search for folder named Scripts where pip applications are stored. Scripts Folder.
  4. In command prompt, type cd cd refers to change directory.
  5. Type pip install package-name.

How do I install without pip?

Installing without pip

  1. Download and unzip the current pandapower distribution to your local hard drive.
  2. Open a command prompt (e.g. Start–>cmd on Windows) and navigate to the folder that contains the file with the command cd cd %path_to_pandapower%\pandapower-x.
  3. Install pandapower by running.

How do I install a Python package from a zip file?

For more information, see Python Setuptools.

  1. Download the pynrfjprog zip file.
  2. Extract the compressed zip file and open a Command Prompt window within that directory.
  3. Type python install at the Command Prompt. The content of the package will be added to the Python defaults directory.

What is pip DOT install?

1 Answer. Basically you are specifying the location from which the pip package manager to extract the package information from.

How do I run pip?

Ensure you can run pip from the command line

Run python 2 This will install or upgrade pip. Additionally, it will install setuptools and wheel if they’re not installed already. Be cautious if you’re using a Python install that’s managed by your operating system or another package manager.

Where does pip install to?

To install modules locally, you need to create and activate what is called a virtual environment, so pip install installs to the folder where that virtual environment is located, instead of globally (which may require administrator privileges).

How do I know if a Python package is installed?

Check the version of Python package/library

  1. Get the version in Python script: __version__ attribute.
  2. Check with pip command. List installed packages: pip list. List installed packages: pip freeze. Check details of installed packages: pip show.
  3. Check with conda command: conda list.

How do I install Python packages in Visual Studio code?

Coding Pack for Python

  1. Download and run the Coding Pack for Python installer. Note: The installer only supports Windows 10 64-bit.
  2. Once the installer launches, review and accept the License Agreement. Then select Install.
  3. After installation completes, select Next.
  4. Launch Visual Studio Code and start coding!

Where is my Python package path?

How to find path information

  1. Open the Python Shell. You see the Python Shell window appear.
  2. Type import sys and press Enter.
  3. Type for p in sys.path: print(p) in a new cell and click Run Cell. You see a listing of the path information, as shown in the figure below.

How to build your very first Python package?

  • Choose Your API. The first real step into turning your code into a package,is deciding how users should use it — and make it importable.
  • Document. Documentation is like lining up in a queue — we wish everyone would simply do it,but we tend to cut ourselves some slack whenever we can.
  • License.
  • Rearrange for Packaging.
  • Sign-Up to PyPI.
  • Build&Deploy!
  • Is there way to install all Python packages?

  • Point your browser at
  • Select either Download Files to download the current package version,or Release History to select the version of your choice.
  • Click on the package to save it to a location on your computer or network.
  • How to create your own package in Python?

  • Create the basic package structure
  • Write a
  • pip install -e.
  • Put some tests in package/test
  • pytest in the test dir,or pytest –pyargs package_name
  • Installing Packages — Python Packaging User Guide

    1. This section explains the fundamentals of how to install Python packages on a computer.
    2. It’s vital to remember that the term ″package″ in this case refers to a collection of applications that will be installed together (i.e.
    3. as a synonym for a distribution).

    It is not intended to relate to the type of package that you include in your Python source code when you use this term (i.e.a container of modules).In the Python community, the word ″package″ is commonly used to refer to a distribution of Python code.

    The name ″distribution″ is typically avoided since it might be mistaken with a Linux distribution or another bigger software distribution, such as Python itself, and hence is not always preferable.

    Requirements for Installing Packages¶

    This section covers the procedures to be followed prior to installing any additional Python packages.

    Ensure you can run Python from the command line¶

    1. Before proceeding, ensure that you have Python installed and that the needed version is accessible from your command line.
    2. You may verify this by executing the following command: You should receive some sort of output, such as Python 3.6.3.
    3. If you do not already have Python installed, please download the most recent 3.x version from or go to the Installing Python section of the Hitchhiker’s Guide to Python for further information.

    Note If you’re a novice and you see an error message that looks like this: >>> python -version is an abbreviation for Python version.Traceback (from the most recent call to the most recent call): NameError: The name ‘python’ is not defined in the file ″″, line 1 in NameError: The name ‘python’ is not defined in the file ″″, line 1 in Due to the fact that this command and the other instructions provided in this lesson are designed to be executed in a shell, this is the case (also called a terminal or console).See the Getting Started with Python for Beginners guide for an introduction to using your operating system’s shell and interacting with the Python programming language.

    Note In an upgraded shell, such as IPython or the Jupyter notebook, you may run system commands such as those in this lesson by prefixing them with the character!: Python 3.6.3 is imported using the syntax import sys!-version The use of writerather rather than plain Python is advised in order to ensure that commands are executed in the Python installation that corresponds to the currently running notebook (which may not be the same Python installation that the python command refers to).Note A consequence of the way most Linux distributions are managing the Python 3 migration is that Linux users who are not utilizing a virtual environment initially should replace the python command in this tutorial with python3 and the python -m pip command with python3 -m pip -user.

    1. None of the instructions in this tutorial should be executed with sudo: You should return to the section on building virtual environments and set up a new one before continuing with the tutorial as written if you receive a permissions error message.

    Ensure you can run pip from the command line¶

    • Additionally, you’ll want to make certain that you have pip available to you. You may verify this by executing the following command: It is assumed that you have pip installed if you have installed Python from source, via an installer from, or via Homebrew. If you’re using Linux and installing via your operating system’s package manager, you may need to install pip separately
    • for more information, see Using the Linux Package Managers to install pip, setuptools, and wheel. If pip isn’t currently installed, you may try to install it from the standard library by following these instructions: python3 -m ensurepip -default-pip -default-pip Unix/macOS py -m ensurepip -default-pip -default-pip on Windows If you are still unable to run python -m pip, try the following: Securely Download 1 and run it using the command python 2. Pip will be installed or upgraded as a result of this command. Additionally, if setuptools and wheel are not already installed, it will install them as part of the installation. Warning Consider your options if you’re working with a Python installation that’s being managed by your operating system or another third-party package manager. As a result of its inability to communicate with those tools, may cause your system to become inconsistent. You may use the command python -prefix=/usr/local/ to install in the /usr/local directory, which is intended for software that is installed locally.

    Ensure pip, setuptools, and wheel are up to date¶

    However, while pip alone is adequate for installing from pre-built binary files, it is beneficial to have current versions of the setuptools and wheel projects on hand to guarantee that you can also install from source archives: Python3 on Unix/macOS with the flags -m pip install -upgrade pip setuptools py -m pip install -upgrade pip setuptools wheel (Windows)

    Optionally, create a virtual environment¶

    1. For further information, please see the section below, however here is the basic venv 3 command to use on a standard Linux system: Source: tutorial env/bin/activate on Unix/macOS with the command python3 -m venv tutorial env Windows py -m venv tutorial env tutorial envScriptsactivate venv tutorial env In the tutorial env subfolder, this command will establish a new virtual environment and configure the current shell to use it as the default python environment.

    Creating Virtual Environments¶

    • Python ″Virtual Environments″ allow Python packages to be deployed in a specific area for a specific application rather of being installed worldwide, as is the case with most other programming languages. Installation of stand-alone command line tools is a good place to start if you want to safely install global command line tools. Consider the following scenario: you have an application that requires LibFoo version 1, while another application requires LibFoo version 2. What is the best way to use both of these applications? Unless you put everything into the normal place (such as /usr/lib/python3.6/site-packages) for your platform, you may find yourself in a position where you mistakenly update a program that shouldn’t have been upgraded. Or, to put it another way, what if you just want to install a program and forget about it? If a program is functioning well, any change in its libraries or the versions of those libraries might cause the application to malfunction again. What happens if you are unable to install packages into the global site-packages directory, as well? For example, on a shared web server. Virtual environments can be of use in any of these situations. In contrast to other virtual environments, they have their own installation directories and do not share libraries with one another. Currently, there are two commonly used programs for building Python virtual environments: python-virtualenv and python-virtualenv. venv is available by default in Python 3.3 and later, and it automatically installs pip and setuptools into newly created virtual environments in Python 3.4 and later
    • virtualenv must be installed separately, but it supports Python 2.7 and Python 3.3+, and pip, setuptools, and wheel are always installed into newly created virtual environments by default (regardless of Python version)
    • venv is available by default in Python 3.3 and later, and it automatically installs pip and setuptools into newly created
    1. The fundamental syntax is as follows: In order to use venv, use the following commands on a Unix/macOS system: python3 -m source/bin/activate on a Unix/macOS system, and on Windows: py -m source/bin/activate on a Windows system The following commands are used with virtualenv: Unix/macOS python3 -m virtualenv source /bin/activate Windows virtualenv Scripts/activate Virtualenv More information may be found in the venv documentation or the virtualenv documentation.
    2. It is necessary to utilize source in Unix shells in order to ensure that the virtual environment’s variables are set within the current shell rather than in a subprocess (which then disappears, having no useful effect).
    3. When using the source command in either of the scenarios described above, Windows users should instead run the activate script from the command shell directly, as seen in the following example: In order to avoid becoming overwhelmed by the task of managing many virtual environments on a manual basis, the dependency management lesson presents a high-level tool called Pipenv, which automatically manages a distinct virtual environment for each project and application that you work on.

    Use pip for Installing¶

    Pip is the installer that is recommended. We’ll go over some of the most prevalent instances in the sections below. For further information, consult the pip documentation, which includes a comprehensive Reference Guide.

    Installing from PyPI¶

    1. The most typical application of pip is to install packages from the Python Package Index by specifying a set of requirements.
    2. As a rule of thumb, a requirement specifier is made up of a project name, followed by an optional version specifier.
    3. PEP 440 gives a complete specification of the specifiers that are currently supported.

    Here are a few illustrations.python3 -m pip install ″SomeProject″ is the command to use to install the most recent version of ″SomeProject″ on Unix/ -m pip install ″SomeProject″ is the command for Windows.

    To install a certain version, follow these steps: The command python3 -m pip install ″SomeProject==1.4″ on Unix/MacOS and the command py -m pip install ″SomeProject==1.4″ on Windows are equivalent.To install a version higher than or equal to one version and less than another, run the following command on a Unix or Macintosh computer: python3 -m pip install ″SomeProject>=1,=1,=1.4.2.″

    Source Distributions vs Wheels¶

    1. Pip may install from either Source Distributions (sdist) or Wheels, however if both are available on PyPI, pip will choose a wheel that is compatible with the source distributions (sdist).
    2. You can change pip’s default behavior, for example, by specifying the –no-binary flag.
    3. Wheels are a pre-built distribution format that, when compared to Source Distributions (sdist), allows for quicker installation, especially when a project incorporates compiled extensions.

    Source Distributions (sdist) are a distribution format that allows for faster installation.Rather of rebuilding the source distribution in the future if pip cannot locate a wheel to install, it will locally construct a wheel and cache it for use by other pip users in the future.

    Upgrading packages¶

    Upgrade an existing SomeProject to the most recent version available from PyPI using the Unix/macOS command python3 -m pip install -upgrade Py -m pip install -upgrade SomeProject Windows py -m pip install SomeProject

    Installing to the User Site¶

    • The -user option can be used to install packages that are only accessible by the current user: Installing Python 3 on Unix/MacOS is as simple as running the following command. py -m pip install -user SomeProject Windows py -m pip install SomeProject More information may be found in the User Installs section of the pip documentation. It should be noted that the -user parameter has no effect when running in a virtual environment
    • all installation commands will have an impact on the virtual environment. It is possible that SomeProject will define command-line scripts or console entry points, in which case the -user option will force them to be placed inside the user base’s binary directory, which may or may not already be available in your shell’s PATH. (Beginning with version 10, pip shows a warning when any scripts are installed to a directory that is not in the PATH environment variable.) Adding the following directory to your PATH will make the scripts available in your shell if they are not already there after installation. When using python -m site -user-base and adding bin to the end of the command, you will be able to locate the user base binary directory on Linux and macOS. For example, this would often display /.local (with / expanded to the absolute path to your home directory), which means you’ll need to add /.local/bin to your PATH environment variable before running the command. If you want to set your PATH permanently, you may do so by editing your /.profile file
    • on Windows, you can identify the user base binary directory by using the command py -m site -user-site and replacing the site-packages with the Scripts option. For example, if this returns C:UsersUsernameAppDataRoamingPython36site-packages, you would need to add C:UsersUsernameAppDataRoamingPython36Scripts in your PATH environment variable. In the Control Panel, you have the option of making your user PATH permanent. It is possible that you will need to log out in order for the PATH changes to take effect.

    Requirements files¶

    The installation of a list of prerequisites provided in a Requirements File is described in detail below. requirements.txt may be found by running python3 -m pip install -r requirements.txt on Unix/MacOS. py -m pip install -r requirements.txt -r requirements.txt

    Installing from VCS¶

    1. Install a project from a version control system in ″editable″ mode.
    2. See the section on VCS Support in pip’s documentation for a further explanation of the syntax.
    3. Python3 -m pip install -e git+from gitpython3 -m pip install -e hg+from mercurialpython3 -m pip install -e svn+svn:/svn.repo/some pkg/trunk/ egg=python3 -m pip install -e svn+svn:/svn.repo/ from svn python3 -m pip install -e from a branch someProjectfrom svn python3 Python: windows: pip install -e git+from git; pip install -e mercurial: pip install -e mercurial:svn:/svn.repo/some pkg/trunk/ egg=SomeProject; pip install -e git+from a branch; pip install -e svn:svn:/svn.repo/some pkg/trunk/ egg

    Installing from other Indexes¶

    1. Installing from a different index is possible.
    2. Linux/Mac: python3 -m pip install -index-url python3 -m pip install The following command: SomeProject Windows py -m pip install -index-url SomeProject During the installation process, in addition to the PyPI Unix/macOS python3 -m pip install -extra-index-url, search for an additional index.
    3. py -m pip install -extra-index-url SomeProject Windows py -m pip install -extra-index-url SomeProject

    Installing from a local src tree¶

    Installing from local src in Development Mode, i.e. in such a way that the project appears to be installed, but yet is still editable from the src tree. Unix/macOS python3 -m pip install -e Windows py -m pip install -e You can also install normally from src Unix/macOS python3 -m pip install Windows

    Installing from local archives¶

    1. Install a certain source archive file from a CD or DVD.
    2. Install Python 3.0.4 with the command python3 -m pip install./downloads/SomeProject-1.0.4.tar.gz on Unix/MacOS.
    3. Installing Python packages via the command line: py -m pip install./downloads/SomeProject-1.0.4.tar.gz on Windows In order to avoid checking PyPI, install from a local directory containing archives.

    SomeProject python3 -m pip install -no-index -find-links=file:/local/dir/ SomeProject python3 -m pip install -no-index -find-links=relative/dir/ SomeProject Windows py -m pip install -no-index -find-links=file:/local/dir/ SomeProject py -m pip

    Installing from other sources¶

    Pip may be instructed to utilize an index created by a helper application that delivers the data in PEP 503 compliant index format. This is accomplished by using the -extra-index-url flag to guide pip to use the index created by the helper application. pip install -extra-index-urlSomeProject python -m pip install

    Installing Prereleases¶

    In addition to stable versions, you may also find pre-release and development versions. By default, pip searches exclusively for stable versions of packages. python3 -m pip install -pre (Unix/macOS) -pre Py -m pip install -pre SomeProject Windows py -m pip install SomeProject

    How to Manually Install Python Packages

    1. ActiveState has significant roots in open source, and as a founding member of the Python Foundation, the company gives back to the Python community in a variety of ways.
    2. We provide the simplicity, security, and support that your organization requires, while remaining compatible with the open source Python distribution that you are already familiar with.
    3. Download ActiveState Python to get started, or get in touch with us if you have any questions about implementing ActiveState Python in your company.

    Nowadays, the vast majority of Python packages are created to be compatible with Python’s pip package management.It is necessary to manually install Python packages if you are using a package that is not compatible with the pip package management system.Here’s how to do it.

    Python Installation Checklist

    Before installing any package, you should always make sure that you have a working Python installation in place that has all of the essential files for installing packages. To do this, follow the instructions in the Installation Requirements.

    Packages That Cannot be Installed with Pip

    The following are the preliminary steps to be taken:

    1. Download the package and unzip it into a temporary directory on your computer
    2. If the package comes with its own set of installation instructions, those should be followed as closely as possible. Otherwise, the most often used approach for manually installing a package is to use the script.

    Installing Python Packages with

    The following steps should be followed to install a package that contains a file: Open a command or terminal window and type the following:

    1. Cd into the root directory of the computer where is found
    2. Enter the command: python install. Build Environment

    Packages installed using have build requirements that developers must follow in order for them to function properly. Some of the prerequisites, on the other hand, are optional.


    In order to ensure that setuptools is up to date, make sure that the following is done:

    Setuptools -upgrade setuptools pip install -upgrade setuptools Install requires keyword arguments should be included in setup. Python installation requirements are specified using the setuptools keyword py. install requires in setuptools As an illustration:

    Installation requirements are specified using the term install requires= Setup requires all of the package build criteria to be met completely. PyPA (Python Packaging Authority) provides a sample project that demonstrates how to install Python on a computer.

    Sample Project

    1. Sample Project is a template package that includes a file that may be used to manually install a program.
    2. The file is annotated with comments that may be used to customize the script as well as for the broader package development environment.
    3. The setuptools package is used in the sample project, which is described as follows: ″A setuptools based setup module.″ is the script that is used to construct packages that are created with setuptools. Example (Non-Annotated)

    1. Import setuptools as fh using open(″″, ″r″): long description = setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools.setuptools (name=″″, description=″″) Substitute your username for the following values: version=″1.0.0,″ author″,″ author email=″″, description=″,″ long description=long description, long description content type=″text/markdown″, url=″=3.6′,)

    How ActiveState Can Help

    • ActiveState is a single cross-platform toolchain for contemporary Python package management that is built on top of Python 3. It may be used to replace the complicated and time-consuming in-house solutions that are constructed from a variety of package managers, environment management tools, and other solutions. Using the ActiveState Platform, developers are able to perform the following tasks: automated building of packages from source code, including linking C libraries, without the need for a local build environment
    • automated building of packages from source code
    • automated building of packages from source code.
    • Resolution of dependencies in an automated manner (or advice on how to manually resolve conflicts), guaranteeing that your environment always comprises a set of known excellent dependencies that operate well together
    • Management of a single source of truth for your environment that can be deployed with a single command to all development and CI/CD environments, guaranteeing constant reproducibility
    • central management of a single source of truth for your environment
    • Installation of virtual Python environments on Windows or Linux systems without the need for any previous configuration
    • Having the capacity to automatically identify, patch, and rebuild insecure environments, hence improving security and drastically lowering the time and effort required to resolve CVEs
    • Visually observing which versions of which packages have been cleared for usage, hence removing the element of surprise from the development process

    To access the majority of the Platform’s capabilities via the command line, users may make use of the ActiveState Platform’s command-line interface (CLI), known as the State Tool, which functions as a universal package manager for Python and offers access to most of the Platform’s functionality.

    Modern Python Package Management

    • ActiveState is a single cross-platform toolchain for contemporary Python package management that is built on top of Python 3. It may be used to replace the complicated and time-consuming in-house solutions that are constructed from a variety of package managers, environment management tools, and other solutions. Developers may benefit from the ActiveState Platform in a number of ways, including: increasing the security of Python environments
    • increasing the openness of your open source supply chain
    • and dramatically reducing package and environment management overhead.
    • Reduce the number of ″works on my computer″ difficulties by eliminating dependency hell.

    After everything is said and done, developers who are ready to utilize the ActiveState Platform will spend less time grappling with technology and more time focused on what they do best: coding. You may join up for a free account to test drive the ActiveState Platform.

    Recommended Reads

    Installing Python Packages with the Help of a Script How to Make All Python Packages Up to Date

    How to Manually Install Python Packages?

    1. Python is one of the most well-known and capable programming languages on the planet.
    2. In general, it is a high-level interpreted language with dynamic typing that is designed for general-purpose application.
    3. Python had its initial public appearance in the year 1991, making it a somewhat ancient programming language by today’s standards.

    The Python programming language was created by Guido Van Rossum and is being developed by a non-profit organization known as the Python Software Foundation.The following are two factors that contribute to its widespread acceptance:

    1. Python’s constructs and support for the multi-paradigm approach assist programmers in writing clean and concise code that contains only a small amount of logic. The second reason for Python’s worldwide popularity among developers is the large amount of community support that this language has received over the years. Furthermore, one of the numerous benefits of this support has been the availability of more than 300,000 packages for the Python programming language. They are the primary strength of Python since they enable developers to perform a wide range of tasks that a language is capable of, ranging from simple graphics using Tkinter to creating a video out of plain text using the package.
    1. It is necessary to install these packages on the system before they can be used with Python.
    2. There are a variety of different approaches that may be used to get the same result.
    3. The most often used method is with the assistance of pip (package manager).

    However, in this post, we will demonstrate how to accomplish it manually without the assistance of a package manager.In the event that the package to be installed is not supported by pip for any reason, this can be quite useful.Step 1: Download and install Python.

    So, if we are going to manually install a Python module, the first and most obvious requirement would be to install the Python source code, which is included with the Python interpreter.Before we can begin installing Python, we must first go to the website and select the downloads page.We may obtain the most recent version of Python by selecting the Downloads option.Once the download is complete, we must open the file by clicking on it.

    1. Once the installer has been launched, we may choose the appropriate choice and then proceed by pressing the next button to complete the installation.
    2. Python’s default installation location will be displayed to us at this point.
    3. We have the option of changing it or better yet, leaving it as it is.
    4. However, we must replicate the path in order to be able to use the subsequent stages.
    5. C:Program Files (x86) Python39 Finally, we may press the install button to complete the process.

    As soon as the installation is complete, we may open the command-line tool or the terminal and perform the command below to ensure that Python was properly installed.python -versionorpy -versionorpy -version This function would return the version number if Python had been correctly installed.Step 2: Download a Python package from any available repository.Once we have finished with the Python installation, we can go ahead and download any python package we want.Puautogui is a python package that assists developers in instructing and automating some portions of the graphical user interface (GUI), such as gesture recognition and other similar functions.We are getting the source code for the pyautogui package from github as a zip file.

    3rd Step: Unpack the Python Package Once we have the python package zip file in our possession, we must extract it to a place of our choosing and look for the main package folder within it, which has the same name as the package itself.Step 4: Place the package in the Site Packages folder on your computer.Once we have located the main package folder within the extracted repository, we must make sure that it is within reach of the python in order to make interacting with it more convenient.And the location where we need to put this package folder is the site packages folder, which can be found in the Lib folder at the location where the Python is installed, as seen in the image below.

    For your convenience, the following address has been provided: Site packages are located under C:Program FilesPython39Libsite packages.Simply navigate to the address listed above and copy and paste the python package folder into that location.Installing the Package is the fifth step.

    1. Having placed the package folder in the reach of Python, which is located in the site packages folder, we must inform Python that a package has been provided to its reach and that it must import the package in order to be used further.
    2. This may be accomplished by simply entering the following command into the terminal.
    3. ″package name″ is imported.
    4. As an illustration, import pyautogui As a result, the five steps shown above are all that is required in order to manually import a Python package without the use of a package management system.

    How To Install Python Packages

    • Madhuri Sangaraju and Jay Parmar’s article Please take a moment to review the Python package installation process before proceeding with the lesson. Packages play an important role in the Python environment, which we will discuss further below. One of the most appealing aspects of Python is that we have a collection of modules and packages that have been written for a specific purpose, and since it is open-source, it is really simple for one individual to build on top of another’s work and produce something beneficial. As a result, you might obtain a small piece of code for conducting simple arithmetic operations or a collection of code, referred to as modules and packages, that can assist you in executing data analysis, all over the internet. For the purposes of this lesson, we shall cover the following concepts: What is the difference between Modules and Packages?
    • Importing Python packages is a common task.
    • Package index for Python
    • PyPI stands for Python Package Index.
    • Installing a package requires the following syntax:
    • Bonus feature: the dir() function.
    • User queries that are often asked are addressed.
    • It is not possible to install iexfinance using conda install.
    • The import get data function from iexfinance does not function
    • Scikit-learn is a dependency package that is required.

    What are Modules and Packages?

    1. Consider writing code directly on the Python or IPython terminal instead than in a text editor.
    2. If we exit the console and re-enter it, the definitions that we have made (functions and variables) will be gone.
    3. As a result, in order to develop a lengthier program, we may want to consider using a text editor to prepare an input for the interpreter and executing the program using that file as an input rather than the current one.

    This is referred to as the process of composing a script.As a program grows in length, it may be necessary to divide it into numerous smaller files in order to make maintenance easier.It is also possible that we will wish to utilize a useful function that we have built in numerous apps without having to replicate its definition into each one.

    Python offers a feature that allows you to save code definitions in a file and then use them in another script or directly in an interactive instance of the interpreter to do this.A module is a type of file that contains definitions that may be loaded into other modules or into the program that we are currently developing.Packages may be thought of as a collection of modules grouped together.By utilizing ″dotted module names,″ it is possible to organize Python’s module namespace in a more organized manner.

    1. Take, for example, the name of the package matplotlib.
    2. pyplot denotes a submodule named pyplot in a package named matplotlib, where matplotlib is the package name.
    3. Packaging modules in this manner relieves the author of various modules of the burden of worrying about each other’s global variable names, and the usage of dotted module names relieves the author of multi-module packages of the burden of worrying about the names of each other’s module names.

    Importing Python packages

    1. Because Python is an open-source project, it is important to understand how it works.
    2. The Python developer community makes their code accessible for others to use in the form of packages that are distributed under the terms of an open source licensing agreement.
    3. When you install Python, you will automatically have access to various pre-installed programs such as Pandas and NumPy, among others.

    You may include these packages in your code by referencing them with the syntax shown below.Importing a Python package is simple.Pandas should be imported.

    Consider the following scenario: we want to create a package (a collection of modules) that will allow us to handle multiple trading techniques and their data in a consistent manner.Because there are so many distinct data files based on data frequencies, we may need to develop and manage a growing collection of modules for converting between the various data frequencies that are now available.Furthermore, there are a variety of alternative tactics and procedures that we may be required to execute.All of this means that we’d have to develop an endless stream of modules to deal with the combinatorics of data, strategies, and operations, which would be extremely time-consuming.

    1. Consider the following package structure to make our life a little simpler.
    strats/ init.pydata/ Top-level packageInitialize strats packageSub-package for dataEquity moduleSub-package for strategiesRSI moduleSub-package for operations
    1. The package is imported when Python looks through the directories on the system path looking for the package subdirectory to import.
    2. To have Python recognize the folders as having packages, file must be included in the directory path.
    3. The following is the procedure to take if we want to make use of this package: import into your database import strats.strategies.statisticalarbitrage from a previous version The equity and statisticalarbitrage modules are loaded from the data and strategies sub-packages, which are both included inside the strats package, by the above statements.

    So far, we’ve learned how to import Python packages; but, we’re not sure how to install Python packages.Is it really necessary to install them in the first place?In the following part, we’ll discover out.

    What happens if the package is not installed?

    1. Following up on what we discussed earlier, Python comes pre-loaded with a number of built-in packages, which are automatically installed when Python is installed.
    2. But what about the packages that aren’t included with the Python installation process?
    3. A module named ‘ModuleNotFoundError’ will be shown if you attempt to import such packages without first installing them.

    Backtrader, for example, is a Python library that can be used for both live trading and backtesting trading techniques.When we try to import it, you can see that there is an issue.the package should be imported import backtrader is a term used to describe a person who imports backtrader.

    This is due to the fact that ‘backtrader’ is not a standard Python module, and we attempted to import it without first installing it.However, where can you obtain these programs and how do you go about installing them?We will learn how to do this in the following portion of the lesson on how to install Python packages.

    PyPI – Python Package Index

    1. The Python Package Index (PyPI) is where the majority of open source Python packages are made available.
    2. It is a repository of software for the Python programming language, which is available for download.
    3. Here is where you may discover the Python packages that have been produced and shared by the Python community.

    You may also make your package available through the PyPI repository.A package installer would be required in order to install the packages from PyPI.’pip’ is the package installer for PyPI that is recommended.

    When you install Python on your machine, Pip is automatically installed as well.You don’t have to be concerned about downloading or installing pip entirely.Although we will cover the installation of pip in the following section of the ‘how to install Python packages tutorial,’ we will not cover it here.

    Installing pip

    1. Using the curl command, we can install a pip package from the command line.
    2. This downloads the pip installation perl script and executes it.
    3. Once curl -Oit has been downloaded, we need to run it on the command prompt using the Python interpreter to complete the process. is a Python script.On Mac and Linux distributions, the above command will fail if there are permissions difficulties (most likely because Python does not have permission to update specific folders on the file system).These folders are read-only by default ( order to prevent random scripts from messing with vital data and infecting the system with viruses), so we may need to perform the following command to make them writeable.

    sudo python

    Syntax to install a Python package

    1. To learn how to install Python packages, we will go through the following syntax, which will be used to install a package using the apt-get package manager (pip).
    2. ‘!pip install package name’ is a pip command.
    3. As an example, in order to install the Backtrader package, you must replace the ‘package name’ with the word ‘backtrader’ in the above code.

    Install a Python package on your computer!backtrader may be installed via pip.You will get a success message at the end of the last line when the installation is complete.

    Thus, the package may now be imported and utilized in your program.Given the fact that there are a variety of institutions and individuals that use various versions of Python, it goes without saying that there will be a variety of versions of packages as well.Learn more about package versions in the following portion of this article, which will teach you how to install Python packages.

    Version of the package

    1. In addition, PyPI allows the developer to submit an unlimited number of versions of the package.
    2. Every combination of package name and version that has been uploaded to the repository is stored in this table.
    3. There are several other versions of the ‘backtrader’ package available as well.

    You can look for them by visiting this page.It is necessary to use a different version of the Python package.For those who want a different version of the package, the following command can be used to install it.

    Installing the version of the ‘backtrader’ package will take us to the next step.Install a specific version of the package that you have purchased!pip install backtrader== backtrader==

    Check for the version of the package

    1. To determine the version of a package, you can use the syntax shown below.
    2. ‘package name.
    3. version’ is a string that represents the version of a pkg.

    But first and foremost, you must import the package.You can find out what version of the ‘backtrader’ package you have by doing the following.Import the package onto your system.

    Import backtrader is a type of importer.Check the package backtrader.version_ to see what version it is currently running on.Points to keep in mind

    1. By default, Pip installs the most recent version of the package
    2. however, if you provide a different version, Pip will install the most recent version of the package.
    3. When installing a specific version, pip overwrites any previous versions that may have been installed
    4. If you want to install the packages using IPython notebook, you may use the syntax shown above.
    5. The same syntax may be used to install using the command prompt by just eliminating the exclamation mark
    6. however, this is not recommended.
    • For example, an IPython notebook may have the command ‘!pip install package name’, whereas a command prompt would contain the command ‘pip install package name’.

    I hope this has helped to clear up any questions or concerns you may have regarding installing Python packages on your system. The dir() function is one of the most often used methods of traversing across Python programs and packages. Find out more about what it does in the following portion of the tutorial, which will cover ‘how to install Python packages’.

    Bonus: dir()function

    1. We may use the built-in function dir() to find out which names are defined by a certain module.
    2. It returns a sorted list of strings as a result of the operation.
    3. import arithmetic into your program In: dir(arithmetic) Out: [‘ builtins ‘,’cached ‘,’doc ‘,’file ‘,’loader ‘,’name ‘,’package ‘,’spec ‘,’addition ‘,’division ‘,’factororial ‘,’multiply ‘] In: dir(arithmetic Out: [‘ builtins ‘,’cache dir() is a function that can be used to find things.

    61 A sorted list of names inside the arithmetic module may be found in this section.All other names that begin with an underscore are Python attributes that are connected with the module that are set by default (we did not define them).dir() returns a list of the names that we have now specified without taking any arguments: In: a = 1 Out: b =’string’ In: a = 1 import arithmetic into your program In: dir() Out: [‘ builtins ‘, ‘a’, ‘arithmetic’, ‘b’, ‘exit’, ‘Quit’] In: dir() Out: [‘ builtins ‘, ‘a’, ‘arithmetic’, ‘b’, ‘exit’, ‘Quit’] It is important to note that it includes all forms of names, including variables, modules, functions, and so on.

    The names of built-in functions and variables are not listed by the dir() function.They are defined in the builtins of the standard modules.It is possible to list them by giving builtins as an argument in the dir command ().import built-ins is where you start.

    1. ‘ArithmeticError’, ‘AttributeError, ‘BaseException’, ‘BlockingIOError’, ‘BrokenPipeError,’ BytesWarning’, ‘ChildProcessError,’ DeprecationWarning, ‘EOFError,’ Ellipsis’, ‘Exception’, ‘False,’ SyntaxErr Please allow us to take a moment to reflect and comprehend what we have learned thus far.
    2. We now understand what Python modules and packages are, as well as how to install Python packages on a computer.
    3. We’ve also gone through the dir() method in great detail.
    4. Alternatively, we could have finished the lesson here and responded to any questions you may have in the comments section, but we decided it would be better to attempt to address some of the most prevalent concerns ourselves.

    Resolution of frequent user queries

    • In the early learning stages of Python programming, you may run into several platform-related challenges and feel as though you are the only one on this planet. Well, throughout the years, we’ve seen a slew of typical inquiries from consumers, and the majority of them have struggled to obtain satisfactory answers. As a result, in this portion of the lesson on how to install Python packages, we’ll attempt to address some of them in detail. The questions we will answer are: Cannot install iexfinance using conda install
    • Cannot install iexfinance using conda install
    • Cannot install iexfinance using conda install
    • The import get data function from iexfinance does not function
    • Scikit-learn is a dependency package that is required.

    It should be noted that iexfinance errors are no longer accessible in the most recent version of Anaconda.

    Query1: Cannot install iexfinance using conda install

    1. Assuming you have previously installed Python using Anaconda, you should be familiar with the process of installing Python packages using the conda installer.
    2. To install ‘iexfinance,’ you would type ‘conda install iexfinance’ on the command line.
    3. However, this would result in the following error.

    This is due to the fact that the package is not currently accessible in the Anaconda repository.You may search for the same in the repository if necessary.There are no results shown.

    As previously noted, you may search for the ‘iexfinance’ package in PyPI and examine the results, which are seen below.As a result, you may make use of the ‘iexfinance’ package by utilizing PyPI.In order to install the packages from PyPI, you must substitute the word ‘pip’ for the word ‘conda’ in your Anaconda prompt.To install the iexfinance package, enter the command ‘pip install iexfinance’ on the Anaconda command window.

    1. Yes, that’s correct!
    2. Proceed to the next question in this tutorial on how to install Python packages by following the steps outlined above.

    Query2: Import get_data from iexfinance does not work

    1. Finally, you can see the success message and the version of the package that was successfully installed on the last line.
    2. ‘iexfinance’ is now running on a version of 0.4.0 that has been installed.
    3. In addition, anytime the package is updated, a new version of the package is made available.

    You may execute the following command on the Anaconda prompt at any time to see what version of the ‘iexfinance’ package is currently installed.’python -c ″import iexfinance; print(iexfinance.version)″’ is equivalent to ‘python -c ″import iexfinance″’.

    Running the pip install command again will bring you up to date with the most recent version of the iexfinance package.Pip automatically installs the most recent version of the ‘iexfinance’ package.As previously noted, the command is ‘pip install iexfinance’.If you are upgrading the package in your system, you should be aware of the modifications that have been made and you may wish to make adjustments to your codes as a result of these changes.

    1. Specifically for the ‘iexfinance’ package, the modifications made from the prior version to the newest version are detailed in the ‘Backwards Incompatible Changes’ part of this documentation.
    2. Great!
    3. There’s only one more to go.
    4. Proceed to the following question in this tutorial on how to install Python packages.
    5. Let’s get started.

    Query3: Check for the dependency packages – scikit-learn

    1. Let’s go back to this photograph for a second time.
    2. During the installation of ‘iexfinance,’ pip searched for a large number of additional Python packages, including requests, pandas, and others.
    3. These are the dependent packages that are necessary in order for ‘iexfinance’ to function properly.

    The dependant packages for the’scikit-learn’ package may be found in the PyPI project description for that package.You can also view the versions of the packages that are dependent on each other.When you attempt to install or upgrade’scikit-learn,’ be sure that the scipy and numpy packages are also updated to the most recent versions available on your system.

    Installing scipy and numpy may be accomplished through the use of the pip command line interface.Then, using the command ‘pip install scikit-learn’, you may install or upgrade the’scikit-learn’ package.Keep in mind that you must restart the kernels.When utilizing the scikit-learn package in your code, remember to restart the kernels in Jupyter or Spyder before you start using it.

    1. If you do not do so, you will see an error while attempting to import the’scikit-learn’ package.
    2. Due to the fact that when you open the Jupyter or Spyder to code, they automatically generate a Python environment based on the package versions that are currently available at that moment As a result, every time you install or update a new package, you must to restart the kernel as well.
    3. Summary: In this lesson on how to install Python packages, we’ve learned how to install Python packages and also addressed some of the most commonly asked questions regarding Python that have been submitted to us.
    4. I hope this information is useful in making your Python exploration as smooth as possible!
    5. The Python programming language, as well as programming in general, may be unfamiliar to many people who have never developed a trading strategy before.

    If you are a complete newbie in both of these areas, the learning curve may be rather high.You can, on the other hand, progressively develop the necessary abilities while engaging in frequent practice on the hands-on learning tasks provided in our course by joining here: Everyone Can Benefit from Algorithmic TradingDisclaimer: In the stock market, there is a risk associated with all investments and trading.Trades in the financial markets, including stock and option trading, as well as other financial instruments, are personal decisions that should only be made after conducting thorough research, including conducting personal risk and financial assessments, as well as engaging professional assistance to the extent that you believe is necessary.The trading methods and associated information discussed in this article are only for the purpose of providing you with further knowledge.

    Installing Python packages locally

    In order to configure Python for your specific use and requirements, you must first select a Python distribution and configure the environment using modules, and then add any custom packages to your environment on a local machine. These two steps are covered in further detail below.

    Choosing a Python distribution and setting up the environment

    1. Modules are used to pick the Python distribution to be used and to build up a user’s environment at the HPCC, just as they are used for any user-selectable system-supplied software elsewhere.
    2. Typically, when a person logs in, he or she sets up the environment for each program that will be used throughout the session, therefore initializing their environment.
    3. In order to ease shell startup and provide users the opportunity to quickly adjust their environment during a session, the HPCC makes use of the Environment Modules package, which is included in the HPCC distribution.

    See the user guide ″Software Environment Setup″ for further information on how to load and manage your software environment with the help of modules.For the purpose of selecting a Python distribution and configuring Python’s environment variables, you will first need to determine which versions of Python are currently available by running the ″module spider python″ command.This command will return a description of the program as well as a list of the current versions of the software that can be installed using the modules system.

    Python 2 is the default version of Python at present moment, and it is loaded with the commands ″module load intel python″ and ″module load gnu python.″ You can use the ″module load intel python3″ or ″module load gnu python3″ commands to load the most recent version of Python that is currently installed on your computer.After that, you can check to see if the Python module has been successfully loaded by using the ″module list″ command.This can be accomplished by executing one of the following sets of instructions: In order to load the Intel-compiled version of Python, perform the following steps: loading modules intel python For an earlier version, go here.Alternatively, import the Intel Python3 module.

    1. need a newer version, verify which one is currently loaded listpython -version is a Python module.
    2. R’s GNU built version may be loaded by using the following commands: Loading the GNU Python module For an earlier version, go here.
    3. If you want to use a newer version of Python, you can load the gnu python3 module.
    4. listpython -version is a Python module.
    5. As a whole, the Intel release of Python is more comprehensively featured and includes tools for improving multi-threaded coding, which can be critical for optimizing the efficiency of long-running Python programs.

    Because it does not require a commercial license, the Gnu distribution may be more portable when it comes to porting your program to other platforms.The vast majority of Python code will work just as well with either distribution.You may also utilize the Conda package manager, which is detailed in further detail below, to install a customized version of Python and manage packages in environments that are under your control.If you’re not sure which choice to choose from the list above, Python 3 from the Intel distribution is a decent place to start.This may be found by typing ″module load intel python3″ into your terminal.

    Installing packages locally to supplement or replace a system distribution

    1. Python packages, by default, require that the installation be carried out by the ‘root’ user account.
    2. But the majority of python package installers and managers will also allow the user to install the package into their HOME folder, allowing them to take advantage of the additional capabilities available in these distributions.
    3. By using the Conda package manager, you may also select to use Anaconda or Miniconda instead of the default Python distribution, which will allow you to utilize a more recent version of Python than the system settings.

    You have complete control over the Python configuration for your code when you use the Conda package manager, which eliminates the need for any dependencies on system Python versions.Instructions for installing Python packages on a local machine are provided below, using one of the following methods:

    1. Conda package management
    2. easy install
    3. installing from source code

    Installing Packages Locally with pip

    1. Pip is the Python package installation tool suggested by the PyPA (Python Packaging Authority) for installing Python packages.
    2. As a result, pip may be used to install many different Python packages.
    3. It is a limitation of pip that if you attempt to install a package without having root access, the tool will simply fail without providing any indication that you may install the program without having root access.

    You may instruct pip to install to your HOME folder instead of the root directory by using the -user option in your command line, as demonstrated below: pip install -user is the command to use for Python 2.pip3 install -user is the command to use for Python 3.

    Installing Packages Locally with easy_install

    1. Easy install is yet another extensively used utility for installing Python packages, and it is a supported way for the installation of a large number of Python packages as well.
    2. This program will also fail if you attempt to install a package without having root access, in a manner similar to pip.
    3. At least in comparison to pip, when easy install fails, it gives you a clue that it is possible to install without root privileges, but it does not provide you with the command to make it happen.

    In order to avoid the requirement for root access, you may tell easy install to install to your HOME folder instead of the default location by including the -user option as seen below: easy install -user is a command-line option.

    Installing Packages Locally from Source

    1. Many Python packages also include the option of being installed straight from their source code, which many users prefer.
    2. Frequently, these packages include a ″″ file that may be used to install the programs in question.
    3. Like pip and easy i

    Leave a Reply

    Your email address will not be published.