pyenv does not use correct python version

Question

using pyenv 2.0.3

when i'm in a folder with a python-version file, the python keeps using the system version which is 2.7.6. (not sure why it is 2.7.6 since i install 3.9.7 via brew).

$ python -V
Python 2.7.16

looking via pyenv gives

$ pyenv which python
/Users/jaco/.pyenv/versions/trading/bin/python

Activating it already says it is activated.

i have

# pyenv
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

in my zshrc

also don't seem to have the bin folder of pyenv? is this new on the v2?

$ l /Users/jaco/.pyenv/bin
ls: /Users/jaco/.pyenv/bin: No such file or directory

Also setting pyenv global 3.9.1 does not work, it keeps 2.7

It might be simpler to just use `~/.pyenv/versions/something/bin/python -m venv some_path` to create a virtualenv in `some_path` that uses a Pyenv-installed Python. — AKX, Jul 12 '21 at 10:43

score 17 · Answer 1 · answered Jul 13 '21 at 20:48

17

The answer is to put the shims on the path

# pyenv
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/shims:$PATH"
if which pyenv-virtualenv-init > /dev/null; then eval "$(pyenv virtualenv-init -)"; fi
#if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi

answered Jul 13 '21 at 20:48

Tjorriemorrie

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Did you happen to run into this by installing pyenv natively initially but then upgrading via brew? – Marcel Wilson Oct 28 '21 at 19:53
1

@MarcelWilson no, I always installed pyenv via brew. I did a brew upgrade I think which screwed it up. – Tjorriemorrie Oct 30 '21 at 05:58
This also worked for me with the fish shell – Skullyhoofd Dec 03 '21 at 12:47
I get ```Failed to activate virtualenv. Perhaps pyenv-virtualenv has not been loaded into your shell properly.``` with these changes. :/ – dhanshreeA Oct 09 '22 at 20:26

score 8 · Answer 2 · answered Jul 12 '21 at 11:35

Assuming you're running MacOS and have installed pyenv via Homebrew, you'll need to do the following:

# Adjust the session-wide environment for your account.
echo 'eval "$(pyenv init --path)"' >> ~/.zprofile

# Enable autocompletion and all subcommands
echo 'eval "$(pyenv init -)"' >> ~/.zshrc

From pyenv installation docs:

MacOS note: If you installed Pyenv with Homebrew, you don't need to add the PYENV_ROOT= and PATH= lines. You also don't need to add commands into ~/.profile if your shell doesn't use it.

score 1 · Answer 3 · answered Jul 19 '22 at 17:46

1

I typed pyenv versions and it showed:

  system
  2.7.18
* 3.10.0 (set by PYENV_VERSION environment variable)
  3.8.13

Then I simply ran unset PYENV_VERSION and when I ran pyenv versions again it correclty selected the local version I intended (2.7.18).

answered Jul 19 '22 at 17:46

carla

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is that the question? I understand he is asking for the python version – KansaiRobot May 30 '23 at 15:23

score 0 · Answer 4 · answered May 12 '22 at 16:40

I was on my ~ folder and trying to run pyenv global 3.10.4 BUT python -V was only running 3.8.3 tried everything and was in despair.

The problem was that on my ~ there was a .python-version file pointing to 3.8.3.

Solution: check and remove .python-version

pyenv does not use correct python version

4 Answers4

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