Python comes in two flavors Python 2 and Python 3. We will also walk you through the basics of installing and otherwise managing Python packages with pip. This guide explains how to install pip for Python 3 and Python 2 on Ubuntu 20.04. like this.How to Install Pip on Ubuntu - Package Manager for Python If you encounter this, you can help by filing an issue with the package project and ask them to fix this, e.g. Python package projects using setuptools are sometimes misconfigured to include the directory containing its tests as a top level Python package. Make sure to not install a directory named just tests into site-packages (i.e. Local site_packages=$(python -c "import site print(site.getsitepackages())") Do not hardcode this directory and use a call to the Python interpreter instead to retrieve the path and store it in a local variable: Sometimes during building, testing or installation it is required to refer to the system's site-packages directory. Local python_version=$(python -c 'import sys print(".".join(map(str, sys.version_info)))') 3.9 or 3.10) and instead use a call to the Python interpreter to retrieve the information and store it in a local variable: Sometimes during preparing, building, testing or installation it is required to refer to the system's major and minor Python version. To discover the sdist tarballs and their potential signature files, it is possible to use this service to get an overview per project:
However, the signature files do not show up directly in the files download section of any given project on. If detached PGP signatures for a given Python sdist tarball exist, they should be used to verify the tarball. Tips and tricks Discovering detached PGP signatures on PyPI # For pytest - needs python-pytest-runner This works for both pytest and nosetests. Some projects provide setup.py entry points for running the test. PyPI provides an alternative stable scheme: PKGBUILD#source source=() array should use the following URL templates: This makes them unsuitable for use in a PKGBUILD. Packages built using setuptools define their C extensions using the ext_modules keyword in setup.py.ĭownload URLs linked from the PyPI website include an unpredictable hash that needs to be fetched from the PyPI website each time a package must be updated. Otherwise it is most likely architecture-independent. ArchitectureĪ Python package that contains C extensions is architecture-dependent. Note: The package name should be entirely lowercase.
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