From Newsgroup: gnu.emacs.help

Rust Buckett <rsstinnett@pm.me> writes:

Is there a way to activate a Python virtual environment in Eshell? When
I try `source ./.venv/bin/activate`, I get "Wrong type argument: listp,
"["". Obviously, this is because `source` is built into the shell
(bash, csh, fish, eshell, etc.) and the default activate is for bash.
So, I guess the real question is if there is already a script to
activate the venv in eshell? Or some other way to do it?

If you read "./.venv/bin/activate", you'll see that what it do mostly is setting VIRTUAL_ENV to "./venv" and add "$VIRTUAL_ENV/bin" to your PATH
to access the "correct" python.

So doing the following should work:
export VIRTUAL_ENV="/absolute/path/to/venv"
export PATH="$VIRTUAL_ENV/bin":$PATH

But maybe you could come up with an elisp function to more easily
activate (and deactivate) those.
--
Manuel Giraud
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From Newsgroup: gnu.emacs.help

Manuel Giraud <manuel@ledu-giraud.fr> writes:

Rust Buckett <rsstinnett@pm.me> writes:

Is there a way to activate a Python virtual environment in Eshell? When
I try `source ./.venv/bin/activate`, I get "Wrong type argument: listp,
"["". Obviously, this is because `source` is built into the shell
(bash, csh, fish, eshell, etc.) and the default activate is for bash.
So, I guess the real question is if there is already a script to
activate the venv in eshell? Or some other way to do it?

If you read "./.venv/bin/activate", you'll see that what it do mostly is setting VIRTUAL_ENV to "./venv" and add "$VIRTUAL_ENV/bin" to your PATH
to access the "correct" python.

So doing the following should work:
export VIRTUAL_ENV="/absolute/path/to/venv"
export PATH="$VIRTUAL_ENV/bin":$PATH

But maybe you could come up with an elisp function to more easily
activate (and deactivate) those.

I realized that since you can evaluate elisp functions in eshell as you
would commands, I'm able to run `pyvenv-activate .venv` right in the
shell. This /almost/ works. `exec-path` shows the correct path and
`getenv "PATH"` shows the change, but `echo $PATH` does not. Guess
which one eshell uses.

If I run `pyvenv-activate .venv` then exit eshell and start it again, everything works. It's not as elegant as I would like, but I guess it
will have to do.
--
this is my clever sig.
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