Pyhton function to check installed packages version from shell. Pure python, no requirements. Now with CLI colors!

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
print('='*50)
version=sys.version.replace('\n','| ')
print(f"python intepreter : {sys.executable}")
print(f"   python version : {version}")
print('='*50)
import traceback
for p in sys.argv[1:]:
    try:
        i = __import__(p)
        print(f'{GREEN}package "{p}:{i.__version__}" present{RESET}')
    except ImportError:
        print(f'{RED}ERROR   : package "{p}" not importable{RESET}')
    except AttributeError:
        print(f'{CYAN}WARNING : package "{p}" imported, but has no "__version__" attribute{RESET}')
    except:
        print('Unexpected error in package "{}": {}'.format(p, sys.exc_info()[0]))
        traceback.print_exc()