7

I want to use python24 provided by ports, so I've installed it, and python_select -s shows that the version I want is indeed selected. Running which python gives /opt/local/bin/python, and running /opt/local/bin/python gives me the version I want. However when I run python from the shell, I get the /usr/bin/python version instead. I don't have a python alias.

Here's the situation in a nutshell:

  1. I believe the path is set up sensibly, and which python seems to confirm this.
  2. alias only returns 1 entry, which is something unrelated to this.

Nevertheless, running python from the bash shell gives me the wrong python!

I'm kind of stumped! What am I overlooking?

tramdas
  • 173

3 Answers3

12

Try hash -d python. This will tell bash to forget where it last saw the python executable.

Ignacio Vazquez-Abrams
  • 114,604
3

Perhaps you just updated something and your bash instance has stale information about executables. Try exec bash.

When I:

  1. Start qqq (/usr/bin/qqq) from bash.
  2. Add something qqq to /usr/local/bin/.
  3. Try to start qqq again in the same bash.

It uses the already-looked-up version (/usr/bin/qqq)

However when I restart the bash, it looks for qqq again and gets /usr/local/bin/qqq.

Gareth
  • 19,080
Vi.
  • 17,755
0

Another possibility is that the script itself specifies which Python executable to run in the first line of the script. For example, my system has Python 2.6 and 2.7 installed, and if the first line is something like:

#!/usr/bin/Python-2.6.8/bin/python

then I get Python 2.6, even though 2.7 is the system default.

The usual way to specify the default is:

#!/usr/bin/env python
GreenMatt
  • 865