Installing Python Modules Email: As a popular open source development project, Python has an active supporting community of contributors and users that also make their software available for other Python developers to use under open source license terms. This allows Python users to share and collaborate effectively, benefiting from the solutions others have already created to common (and sometimes even rare!) problems, as well as potentially contributing their own solutions to the common pool. This guide covers the installation part of the process. For a guide to creating and sharing your own Python projects, refer to the.

Key terms. pip is the preferred installer program. Starting with Python 3.4, it is included by default with the Python binary installers. A virtual environment is a semi-isolated Python environment that allows packages to be installed for use by a particular application, rather than being installed system wide. venv is the standard tool for creating virtual environments, and has been part of Python since Python 3.3.

Starting with Python 3.4, it defaults to installing pip into all created virtual environments. virtualenv is a third party alternative (and predecessor) to venv. It allows virtual environments to be used on versions of Python prior to 3.4, which either don’t provide venv at all, or aren’t able to automatically install pip into created environments. The is a public repository of open source licensed packages made available for use by other Python users. the is the group of developers and documentation authors responsible for the maintenance and evolution of the standard packaging tools and the associated metadata and file format standards. They maintain a variety of tools, documentation, and issue trackers on both.

distutils is the original build and distribution system first added to the Python standard library in 1998. While direct use of distutils is being phased out, it still laid the foundation for the current packaging and distribution infrastructure, and it not only remains part of the standard library, but its name lives on in other ways (such as the name of the mailing list used to coordinate Python packaging standards development).

Note For POSIX users (including Mac OS X and Linux users), the examples in this guide assume the use of a. For Windows users, the examples in this guide assume that the option to adjust the system PATH environment variable was selected when installing Python.

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It’s also possible to specify an exact or minimum version directly on the command line. When using comparator operators such as. Installing binary extensions Python has typically relied heavily on source based distribution, with end users being expected to compile extension modules from source as part of the installation process. With the introduction of support for the binary wheel format, and the ability to publish wheels for at least Windows and Mac OS X through the Python Packaging Index, this problem is expected to diminish over time, as users are more regularly able to install pre-built extensions rather than needing to build them themselves. Some of the solutions for installing that are not yet available as pre-built wheel files may also help with obtaining other binary extensions without needing to build them locally.

Youtube-dl: Download Page Download Page Remember youtube-dl requires version 2.6, 2.7, or 3.2+ to work except for Windows exe. Requires and does not require Python that is already embedded into the binary.