Updated 09252022-061200
Shell Commands
pip list --outdated
pip freeze | %{$_.split('==')[0]} | %{pip install --upgrade $_}
pip3 list --outdated --format=freeze | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip3 install -U
pip3 list -o | cut -f1 -d' ' | tr " " "\n" | awk '{if(NR>=3)print)' | cut -d' ' -f1 | xargs -n1 pip3 install -U
pip freeze > requirements.txt
pip install -r requirements.txt --upgrade
pipenv shell
pipenv update
Python Script
import pkg_resources from subprocess import call for dist in pkg_resources.working_set: call("python -m pip install --upgrade " + dist.<projectname>, shell=True)
With Python, the best practice of pinning all the packages in an environment at a specific version ensures that the environment can be reproduced months or even years later.
==. For example, requests==2.21.0. Pinned packages should never be updated except for a very good reason, such as to fix a critical bug or vulnerability.>=, which indicates that the package can be replaced by a later version. Unpinned packages are more common in development environments, where the latest version can offer bug fixes, security patches and even new functionality.As packages age, many of them are likely to have vulnerabilities and bugs logged against them. In order to maintain the security and performance of your application, you’ll need to update these packages to a newer version that fixes the issue.
The pip package manager can be used to update one or more packages system-wide. However, if your deployment is located in a virtual environment, you should use the Pipenv package manager to update all Python packages.
NOTE: be aware that upgrading packages can break your environment by installing incompatible dependencies. This is because pip and pipenv do not resolve dependencies.
In general, you can use the following steps to perform a package upgrade:
Before packages can be updated, ensure that a Python installation containing the necessary files needed for updating packages is in place by following the steps outlined in "[Using Python on Windows]" in the official documentation.
To generate a list of all outdated packages:
pip list --outdated
Depending on your operating system or virtual environment, refer to the following sections.
The easiest way to update all packages in a Windows environment is to use pip in conjunction with Windows PowerShell:
powershell in the Search Box of the Task barpip freeze | %{$_.split('==')[0]} | %{pip install --upgrade $_}
This will upgrade all packages system-wide to the latest version available in the Python Package Index (PyPI).
Linux provides a number of ways to use pip in order to upgrade Python packages, including grep and awk.
To upgrade all packages using pip with grep on Ubuntu Linux:
pip3 list --outdated --format=freeze | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip3 install -U
To upgrade all packages using pip with awk on Ubuntu Linux:
pip3 list -o | cut -f1 -d' ' | tr " " "\n" | awk '{if(NR>=3)print)' | cut -d' ' -f1 | xargs -n1 pip3 install -U
Pip can be used to upgrade all packages on either Windows or Linux:
pip freeze > requirements.txt
== with >=. Use the Replace All command in the editor.pip install -r requirements.txt --upgrade
The easiest way to update unpinned packages (i.e., packages that do not require a specific version) in a virtual environment is to run the following Python script that makes use of pip:
import pkg_resources from subprocess import call for dist in pkg_resources.working_set: call("python -m pip install --upgrade " + dist.<projectname>, shell=True)
The simplest way to update all the unpinned packages in a specific virtual environment created with pipenv is to do the following steps:
pipenv shell
pipenv update