pip install –upgrade –force-reinstall <package> When upgrading, reinstall all packages even if they are already up-to-date. pip install -I <package> pip install –ignore-installed <package> Ignore the installed packages (reinstalling instead).
pip is just a PyPI package like any other; you could use it to upgrade itself the same way you would upgrade any package: pip install –upgrade pip On Windows the recommended command is: python -m pip install –upgrade pip
Update: Comments point out that the instructions here may be dangerous. Consider using the Visual C++ 2008 Express edition or the purpose-built Microsoft Visual C++ Compiler for Python (details) and NOT using the original answer below. Original error message means the required version of Visual C++ is not installed. For Windows installations: While running setup.py … Read more
It seems mysql_config is missing on your system or the installer could not find it. Be sure mysql_config is really installed. For example on Debian/Ubuntu you must install the package: sudo apt-get install libmysqlclient-dev Maybe the mysql_config is not in your path, it will be the case when you compile by yourself the mysql suite. … Read more
From Ian Bicking’s own introduction to pip: pip was originally written to improve on easy_install in the following ways All packages are downloaded before installation. Partially-completed installation doesn’t occur as a result. Care is taken to present useful output on the console. The reasons for actions are kept track of. For instance, if a package … Read more
Prepend the url prefix git+ (See VCS Support): pip install git+https://github.com/tangentlabs/django-oscar-paypal.git@issue/34/oscar-0.6 And specify the branch name without the leading /.
Quoting from the Conda blog: Having been involved in the python world for so long, we are all aware of pip, easy_install, and virtualenv, but these tools did not meet all of our specific requirements. The main problem is that they are focused around Python, neglecting non-Python library dependencies, such as HDF5, MKL, LLVM, etc., … Read more
As of pip 1.3, there is a pip show command. $ pip show Jinja2 — Name: Jinja2 Version: 2.7.3 Location: /path/to/virtualenv/lib/python2.7/site-packages Requires: markupsafe In older versions, pip freeze and grep should do the job nicely. $ pip freeze | grep Jinja2 Jinja2==2.7.3
I’ve found this snippet as an alternative solution. It’s a more graceful removal of libraries than remaking the virtualenv: pip freeze | xargs pip uninstall -y In case you have packages installed via VCS, you need to exclude those lines and remove the packages manually (elevated from the comments below): pip freeze | grep -v … Read more
I just used the following which was quite simple. First open a console then cd to where you’ve downloaded your file like some-package.whl and use pip install some-package.whl Note: if pip.exe is not recognized, you may find it in the “Scripts” directory from where python has been installed. If pip is not installed, this page … Read more