# Ubuntu – Bash tries to run python on unknown command and fails in Py_Initialize

bashpython

Running Ubuntu 14.04 and updater says that all software is up to date. Have tried rebooting.

I am preparing for a class that uses Python. I have installed it and it works fine. However, I now have this problem:
When I type an unknown command into bash, I get a python error:

cliff@Climate:~$UnknownProgram Fatal Python error: Py_Initialize: Unable to get the locale encoding File "/usr/lib/python2.7/encodings/__init__.py", line 123 raise CodecRegistryError,\ ^ SyntaxError: invalid syntax Aborted cliff@Climate:~$ env | grep -i python
PYTHONPATH=/usr/lib/pymodules/python2.7:/usr/lib/python2.7

cliff@Climate:~$which UnknownProgram cliff@Climate:~$ which python
/usr/bin/python

cliff@Climate:~$python --version Python 2.7.6 cliff@Climate:~$ echo \$PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/loc‌​al/games


I think that pycharm also installed some python3 on the box.

I have found that /usr/lib/command-not-found includes a shebang for python3. I guess that it is somehow picking up the wrong Py_Initialize file. How do I correct this since I need python 2.7 for the class?

#### Best Answer

Removing the export PYTHONPATH from my .bashrc has fixed the problem. I now get the normal processing if I type in an incorrect command name. I will have to do some more research to be sure that my python 2.7 code is picking up the correct modules without that extra environment setting.