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I need to install psycopg2 v2.4.1 specifically. I accidentally did:

pip install psycopg2

Instead of:

pip install psycopg2==2.4.1

That installs 2.4.4 instead of the earlier version.

Now even after I pip uninstall psycopg2 and attempt to reinstall with the correct version, it appears that pip is re-using the cache it downloaded the first time.

How can I force pip to clear out its download cache and use the specific version I'm including in the command?

1 Answer

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by (107k points)

If you want to force pip to clear out its download cache and use the specific version you can do by using  --no-cache-dir  command. If you are using an older version of pip than upgrade it with pip install -U pip.

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