The previously documented use of `.` is considered deprecated (https://fishshell.com/docs/current/commands.html#source).
https://bugs.python.org/issue38899
Automerge-Triggered-By: @brettcannon
+=============+=================+=========================================+
| POSIX | bash/zsh | $ source <venv>/bin/activate |
+-------------+-----------------+-----------------------------------------+
-| | fish | $ . <venv>/bin/activate.fish |
+| | fish | $ source <venv>/bin/activate.fish |
+-------------+-----------------+-----------------------------------------+
| | csh/tcsh | $ source <venv>/bin/activate.csh |
+-------------+-----------------+-----------------------------------------+
-# This file must be used with ". bin/activate.fish" *from fish* (http://fishshell.org);
-# you cannot run it directly.
+# This file must be used with "source <venv>/bin/activate.fish" *from fish*
+# (http://fishshell.org); you cannot run it directly.
function deactivate -d "Exit virtualenv and return to normal shell environment"
# reset old environment variables
--- /dev/null
+Update documentation to state that to activate virtual environments under
+fish one should use `source`, not `.` as documented at
+https://fishshell.com/docs/current/commands.html#source.