Upgrade package without upgrading dependencies using pip?
Solution 1
Overview:
- Install new packages without upgrading installed ones:
pip install
(without-U
) - Upgrade only packages that are outdated according to requirements:
pip install --upgrade --upgrade-strategy only-if-needed
(default in new versions) - Upgrade package and all dependencies to latest version:
pip install --upgrade --upgrade-strategy eager
(default in old versions) - Install or upgrade listed packages without touching dependencies: --no-deps
UPDATE (thanks to @Jether's comment): If you're using the latest version of pip, then updating dependencies only when necessary is now the default behavior, and you don't need to do anything special! The answer below outlines the steps for older versions of pip (which also works for newer versions if you want to be portable).
If you really want to not touch dependencies, then indeed the way to go is
pip install -U --no-deps mypackage
But I think what you'll usually want is to not upgrade dependencies unless it's required. In that case you can use:
pip install --upgrade --upgrade-strategy only-if-needed mypackage
This only updates requirements if the package requires a newer version than is installed.
Solution 2
I just tried on my virtualenv project and pip install -U --no-deps mypackage
seems to work just fine. It just download mypackage and nothing else. What's your set up like?
Solution 3
You're right. I thought that when I added --no-deps
it had neglected to uninstall the existing version. But I tried it again and see there's no issue:
$ pip install -U --no-deps myproj
Downloading/unpacking myproj
Downloading myproj-1.0-trunk.31072.tar.gz (43Kb): 43Kb downloaded
Running setup.py egg_info for package myproj
Installing collected packages: myproj
Found existing installation: myproj 1.0-trunk.31053
Uninstalling myproj:
Successfully uninstalled myproj
Running setup.py install for myproj
Successfully installed myproj
Cleaning up...
Amy G
Updated on July 08, 2022Comments
-
Amy G almost 2 years
I'm using pip and virtualenv for my python application. I would like to upgrade to a new version of the application without touching the dependencies. When I use
pip install -U
, it tries to upgrade all the packages, and even uninstalls and re-installs the same version of a dependency package when there isn't a new version available.I also tried
pip install -U --no-deps
but that seems equivalent to a regular install instead of an upgrade. Is there a combination of flags that will do what I want? -
Amy G almost 14 yearsMy confusion came from the difference in behavior when you give pip a specific tarball versus a package name. Carl Meyer had a helpful explanation: groups.google.com/group/python-virtualenv/msg/d702c251a6dc40a5
-
Flimm about 7 yearsI highly recommend running
pip check
afterwards to check if there any issues with missing dependencies of dependencies. -
Jether over 6 yearsThis is now the new default strategy in pip: github.com/pypa/pip/pull/4500
-
ImportanceOfBeingErnest about 6 yearsLoL, I just blindly copied the command from the answer and it indeed installed some
mypackage
into my python. -
Jérôme about 6 yearsI believe eager is the default. only-if-needed will be the default in pip 10.0: github.com/pypa/pip/pull/4500/files, pypi.python.org/pypi/pip.
-
Daniel Möller almost 6 yearsIs there any option for "only if inexistent"? I don't want PIP to touch any of the existing packages, but let it install the missing ones....
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Mark almost 6 years@DanielMöller Isn't that what
pip install
does without--upgrade
?