Python get all installed packages

How to Get a List of All Installed Python Packages Using Pip

Learn how to use pip to get a list of all installed Python packages. Use pip list command, pip freeze command, and help command to manage third-party packages.

• Pip Package Manager
• List Installed Packages
• How To List Installed Python Packages using pip command form
• Python Versions
• Package Information
• Advanced Pip Commands
• Other simple code examples for getting all installed Python packages using pip
• Conclusion
• How do I show a list of all available modules in Python library?
• What pip packages are installed?
• How to install all pip packages at once?
• Where are my Python modules installed?

Python is a popular programming language used in data science, machine learning, and web development. Pip is the standard package manager for python and can be used to install, upgrade, and manage third-party packages. This article will guide you on how to get a list of all installed Python packages using pip.

Pip Package Manager

Pip is a package manager for Python that is used to install, upgrade, and manage third-party packages. It is installed automatically with Python 2 and 3 installations. Pip can be used to manage both globally and locally installed packages.

List Installed Packages

There are three ways to get the list of all the libraries or packages or modules installed in python using pip list command, pip freeze command, and help.

Pip List Command

The pip list command returns a list of all installed packages. To use this command, open up the command prompt and enter the following command:

This command will output a list of all the installed packages along with their respective versions.

The pip freeze command outputs a list of installed packages and their versions in a format that can be used in a requirements file. To use this command, open up the command prompt and enter the following command:

This command will output a list of installed packages along with their respective versions in a format that can be used in a requirements file.

Help Command

The help command can be used to get detailed information about pip commands. To use this command, open up the command prompt and enter the following command:

This command will output a list of all available pip commands along with their respective descriptions.

How To List Installed Python Packages using pip command form

In this video, you will see How To list installed python packages using pip command form Duration: 1:02

Python Versions

Python -m pip list works, but it shows the packages installed in python 2.7. To list all installed packages using Python 3.8, use the command:

This command will output a list of all installed packages using Python 3.8.

Package Information

To view where pip installs packages, open up command line and run ‘pip show

’. This shows you the installation folder location. The command “pip show

” can be used to get complete metadata information of an installed Python package.

This command will output complete metadata information for the specified package.

The pip.get_installed_distributions(local_only=True) function-call returns an iterable and can be used to get a list of all installed packages and their versions. This function can be used in Python scripts to get information about installed packages programmatically.

The pip-licenses command can be used to dump the software license list of Python packages installed with pip. To use this command, open up the command prompt and enter the following command:

This command will output a list of all installed packages along with their respective licenses.

Advanced Pip Commands

Pip list returns a list of all packages and pip list –local for distinguishing between virtualenv and global site. The command “pip list –format=column” can be used to get the list of all the installed Python modules in our system in column format. Passing the –user option to python -m pip install will install a package just for the current user.

Other simple code examples for getting all installed Python packages using pip

In Shell case in point, how to see pip installed packages code sample

In Python , in particular, pip show all installed packages code example

In Python , in particular, list all pip packages code sample

In Shell , in particular, list all packages installed with pip code example

In Python as proof, list all pip packages code sample

Conclusion

Pip Package Manager is a powerful tool used to manage third-party packages in Python. There are three ways to get a list of all installed packages, and the pip list command is the most commonly used. Python 3.8 should be used to list all installed packages. Pip provides several commands for managing package information and licenses. Advanced pip commands can be used to customize pip functionality.

In conclusion, pip is an essential tool for any Python developer. With pip, you can easily manage your project’s dependencies, making it easier to share and collaborate with other developers. By following the steps outlined in this article, you can quickly get a list of all installed packages using pip.

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How to List Installed Python Packages

The Pip, Pipenv, Anaconda Navigator, and Conda Package Managers can all be used to list installed Python packages.

You can also use the ActiveState Platform’s command line interface (CLI), the State Tool to list all installed packages using a simple “state packages” command. For a complete list of all packages and dependencies (including OS-level and transitive dependencies, as well as shared libraries), you can use the Web GUI, which provides a full Bill of Materials view. Give it a try by signing up for a free ActiveState Platform account .

Before getting a list of installed packages, it’s always a good practice to ensure that up-to-date versions of Python, Pip, Anaconda Navigator and Conda are in place.

List Installed Packages with Pip

Both pip list and pip freeze will generate a list of installed packages, just with differently formatted results. Keep in mind that pip list will list ALL installed packages (regardless of how they were installed). while pip freeze will list only everything installed by Pip.

Package Version ---------------------------------- ---------- absl-py 0.7.0

List Packages in a Console with Pip

To list all installed packages from a Python console using pip, you can utilize the following script:

>>> import pkg_resources installed_packages = pkg_resources.working_set installed_packages_list = sorted(["%s==%s" % (i.key, i.version) for i in installed_packages]) print(installed_packages_list)

['absl-py==0.7.0', 'adodbapi==2.6.0.7', 'alabaster==0.7.12', 'alembic==1.0.7', 'amqp==2.4.1', 'anyjson==0.3.3',

List Modules in a Console without Pip

To list all installed modules from a python console without pip, you can use the following command:

Note that there are some drawbacks to this approach, including:

• If there are a lot of installed packages, this method can take a long time to import each module before it can search that module’s path for sub-modules.
• Modules that have code outside of an if __name__ == “__main__”: code block, and if user input is expected, may cause the code to enter an infinite loop or hang.

List Installed Packages with Pipenv

The pipenv lock -r command can be used to generate output from a pipfile.lock file in a pipenv environment. All packages, including dependencies will be listed in the output. For example:

-i https://pypi.org/simple certifi==2019.11.28 chardet==3.0.4 idna==2.9 requests==2.23.0 urllib3==1.25.8

List Installed Packages with Anaconda Navigator

To list installed packages in an Anaconda environment using Anaconda Navigator, do the following:

• Start the Anaconda Navigator application.
• Select Environments in the left column.
• A dropdown box at the center-top of the GUI should list installed packages. If not, then select Installed in the dropdown menu to list all packages.

List Installed Packages with Conda

The conda list command can be used to list all packages in a conda environment:

# packages in environment at C:\Anaconda2_4.3.1: # _license 1.1 py27_1 alabaster 0.7.9 py27_0

Globally vs Locally Installed Packages

For information about generating a list of installed packages globally vs locally, refer to:

List Installed Packages with the ActiveState Platform

To view a list of installed Python packages in your currently active project using the ActiveState Platform, run the following command on the command line:

The output is a full list of installed packages in your current project:

matplotlib numpy pandas scikit-learn scipy

You can also obtain a complete software bill of materials view of all packages, dependencies, transitives dependencies (ie., dependencies of dependencies), OS-level dependencies and shared libraries (ie., OpenSSL) using the ActiveState Platform’s Web GUI:

The ActiveState Platform automatically builds all Python packages including linked C libraries from source code, and packages them for Windows, Linux and macOS. Because it does it all server-side, there’s no need to maintain local build environments.

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List all packages, modules installed in python – pip list

There are three ways to get the list of all the libraries or packages or modules installed in python using pip list command, pip freeze command and help function .

All the three ways of listing all the packages installed in python are explained below along with we also explained.

• Pip list all the outdated package installed in python
• pip list all the up to date package installed in python
• pip list all installed packages in json format
• pip list installed packages along with package version

1. List all the packages, modules installed in python Using pip list:

open Anaconda prompt and type the following command.

This will get the list of installed packages along with their version in angular braces which is shown below

Syntax for pip list command :

Some Examples of pip list command with options:

c) List all outdated Packages that are not dependencies of other packages.

d) pip list – list all the packages installed using json formatting

f) pip list – python List packages that are not dependencies of installed packages.

g) pip list – python list all package that are upto date.

2. Get the list of all the packages in python Using Help function: To get the list of installed packages in python you can simply type the below command in python IDE

This will list all the modules installed in the system .

3. List all the packages, modules installed in python Using pip freeze:

This will get the list of installed packages along with their version as shown below These are the three different methods that lists the packages or libraries installed in python.

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