To check which version is installed of a given library, you can use the library._version_ attribute after importing the library (package, module) with import library. Here’s an example for pip: pip3 list | findstr pipġ.2.3 Method 4: Module _version_ Attribute To check the versions of a single package on Windows, you can chain pip list with findstr pip using the CMD or Powershell command: pip3 list | findstr pip to locate the version of pip in the output list of package versions automatically. Pip3 list Method 3: pip list findstr on Windows Then try those commands before giving up: python -m pip list In some instances, this will not work-depending on your environment. Here’s a simplified example for Windows Powershell, I’ve highlighted the line that shows the package version is 1.2.3: PS C:\Users\xcent> pip list This will work if your pip installation is version 1.3 or higher. To check the versions of all installed packages, use pip list and locate the version of pip in the output list of package versions sorted alphabetically. The book was released in 2020 with the world-class programming book publisher NoStarch Press (San Francisco). Next, we’ll dive into more ways to check your pip version. In this case, try those commands before giving up: python -m pip show pip Here’s an example in my Windows Powershell: I’ve highlighted the line that shows that my package version is a.b.c: PS C:\Users\xcent> pip show pip This will work if your pip installation is version 1.3 or higher-which is likely to hold in your case because pip 1.3 was released a decade ago in 2013!! To check which version of the Python library pip is installed, run pip show pip or pip3 show pip in your CMD/Powershell (Windows), or terminal (macOS/Linux/Ubuntu). ? Question: How to check the (major, minor, patch) version of pip in your current Python environment? Method 1: pip show Let’s dive into the meat of this article: 1) are used for smaller bug fixes that are backward compatible. 2.0) are used for larger bug fixes and new features that are backward compatible. Major releases ( 0.1.0 to 1.0.0) are used for the first stable release or “breaking changes”, i.e., major updates that break backward compatibility.Practical examples would use numerical values for x, y, and z: Summary: Easily download, build, install, upgrade, and uninstall Python packagesĪuthor-email: c:/path/to/mingw64_p圓.10_venv/lib/python3.10/site-packagesĬan I make a venv in Python 3.In this tutorial, we’ll use the shorthand general version abbreviation like so: x.y.z I asked for version 45.0.0 not 65.5.0? $ pip3 show setuptools Why does it say Collecting setuptools=45 - and then Successfully installed setuptools-65.5.0? How is that "successful"? Ok, looks good so far now old setuptools? $ pip3 install -ignore-installed setuptools=45 $ mingw64_p圓.10_venv/bin/python3.exe -m pip install -ignore-installed -upgrade pip Ok, so I try: $ python3 -m venv mingw64_p圓.10_venv -system-site-packages Your python interpreter will look first in the virtualenv's package directory, so those packages should shadow the global ones. That way pip will install what you've requested locally even though a system-wide version exists. Then, activate the virtualenv and when you want things installed in the virtualenv rather than the system python, use pip install -ignore-installed or pip install -I. Make virtualenv inherit specific packages from your global site-packagesĬreate the environment with virtualenv -system-site-packages. So, I'm thinking - I already have numpy and scipy, why can't I reuse those? So I found: Ok, so I do pip3 install numpy and it takes an hour to build from source, and then install process fails again for scipy - I can tell already this is going to be another hour. but upon building the package with python3 setup.py install, I get ModuleNotFoundError: No module named 'numpy'. Successfully uninstalled setuptools-65.5.0 Installing collected packages: setuptoolsįound existing installation: setuptools 65.5.0 This works, I can install old setuptools: $ pip3 install setuptools=45ĭownloading setuptools-45.0.0-py2.p圓-none-any.whl (583 kB) Since that is likely to mess up the rest of my system, I'm thinking I should try this in python3 -m venv mingw64_p圓.10_venv. It being old, it uses deprecated features for setuptools, so now I have to install old setuptools. I use the Python 3.10.10 in MINGW64, and I want to use a Python3 package that has not been updated in years, which I've installed successfully back in Python 3.7 on this platform - but of course, that is useless on Python 3.10.
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