Upgrade packages with pip from inside code

Question

I saw an older question, suggesting to use pip.main(package), however this does not upgrade a package. I could not find anything. Thanks in advance.

You really should not be updating packages from inside code unless it is strictly necessary. It can cause incompatibility errors. You can use system calls though — user4396006
– user4396006, Commented Aug 22, 2016 at 23:16
I guess a better answer than mine solves the problem, but you can call the pip command with the python subprocess module — user4396006
– user4396006, Commented Aug 23, 2016 at 10:09
OK, thanks. I looked at that, but it seemed I needed to enter the password many times because I was looping it to upgrade all, and python was in admin only folder — dcarroll9999
– dcarroll9999, Commented Aug 23, 2016 at 21:11

spruceb · Accepted Answer · 2016-08-22 23:16:03Z

3

Try pip.main(['install', '--upgrade', package]) instead. pip.main just takes arguments exactly like the command line version.

answered Aug 22, 2016 at 23:16

spruceb

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4 Comments

user4396006 Over a year ago

Shouldn't package go between quotes?

spruceb Over a year ago

I was assuming package was a variable containing the name of whatever package OP wants to upgrade.

dcarroll9999 Over a year ago

Yes, package was a variable that had a string inside it. Here is the class; def pipInstall(package): pip.main(['install', '--upgrade', package])

spruceb Over a year ago

Did that do it for you then? It works on my machine.

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