Pyhton function to check installed packages version from shell. This uses the shell default python, useful to check you local virtualenvs/conda envs.

example_output.png

python_version_checker.py

#!/usr/bin/env python
"""Pyhton function to check installed packages version from shell. Pure python, no requirements.
"""

# define CLI colors 
RED = '\033[31m'   # mode 31 = red forground
GREEN = '\033[1;32m' # mode 32 = green forground
CYAN = '\033[34m' # mode 32 = green forground
RESET = '\033[0m'  # mode 0  = reset


import sys
version=sys.version.replace('\n','| ')
sep_lenght = len(version)+20
separator = '='*sep_lenght
print(separator)
print(f"python intepreter : {sys.executable}")
print(f"   python version : {version}")
import traceback
for p in sys.argv[1:]:
    try:
        i = __import__(p)
        print(f'{GREEN}{separator}')
        print(f'package "{p}:{i.__version__}" present')
        sys_exit_code = 0 # all OK
    except ImportError:
        print(f'{RED}{separator}')
        print(f'ERROR   : package "{p}" not importable')
        sys_exit_code = 127
    except AttributeError:
        print(f'{CYAN}{separator}')
        print(f'WARNING : package "{p}" imported, but has no "__version__" attribute')
        sys_exit_code = 0 # all OK, importable but no __version__
    except:
        print(RED,'Unexpected error in package "{}": {}'.format(p, sys.exc_info()[0]))
        traceback.print_exc()
        sys_exit_code = 1 # generic error 
    finally:
        print(separator,RESET)
        sys.exit(sys_exit_code)