However, for a C language package that has only sources published, pip needs a working and properly set up compiler to successfully install the package.Ī wheel file is a package distribution. As for C language packages, many of them have precompiled binaries for multiple operating systems, making the installation seamless as well. Installing pure-Python packages such as xlrd is usually seamless. PyPI hosts both pure-Python packages and Python packages taking advantage of the C language. PyPI is an online repository of Python packages, many of which are published under a rather permissive license such as MIT license or one of the BSD licenses. for installing packages for PyPy (a just-in-time compiler for Python), in which case you use pypy -m pip install xlrd. Outputs information about an installed package (here xlrd), including version, author and license.Lists installed packages and their versions.This is useful when for whatever reason installation from PyPI fails and you need to download the wheel file (.whl) of the package manually. Installs the package from wheel file mypackage.whl.Upgrades a package to the latest version.Installs xlrd package from the PyPI repository, or from another repository if customized to search in additional repositories.Other package managers are not covered in this chapter. If you do not have pip, you can install it by downloading get-pip.py from and running python get-pip.py. pip seems to be part of Python distribution since Python 2.7.9 and 3.5.4. Pip is the standard Python package manager, making it easy to download and install packages from the PyPI repository.
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