Python

>>> import form_utils
>>> form_utils.__file__
'/data1/django/lib/python2.6/site-packages/form_utils/__init__.pyc'

>>> globals()

{'__builtins__': , 'functools': , '__package__': None, '__name__': '__main__', 'os': , '__doc__': None}

print(globals())

find . -name \*.pyc -delete

------  python3
apt-get install python3

warning: don't change symbolic links in /usr/bin (/usr/bin/python and /usr/bin/python-config). Otherwise apt-get and other scripts don't work anymore.
Rather, add an alias in your .bashrc

alias python=python3