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?
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273answers:
2
A:
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?
Y.H Wong
2010-05-21 09:22:29
My confusion came from the difference in behavior when you give pip a specific tarball versus a package name. Carl Meyer had a helpful explanation: http://groups.google.com/group/python-virtualenv/msg/d702c251a6dc40a5
Amy G
2010-06-10 16:28:31
A:
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
2010-06-10 00:00:11