main.py

#!/usr/bin/env python

# @Author: Joe Iannone <josephiannone>
# @Date:   2019-01-22T21:22:57-05:00
# @Filename: main.py
# @Last modified by:   josephiannone
# @Last modified time: 2019-05-13T19:35:05-04:00


import sys, signal
from yaspin import yaspin

def main():

    # spinner before dependency / version check
    spinner = yaspin()
    spinner.start()

    # Python version check and warning
    pyv = sys.version_info
    pyv_str = str(pyv[0]) + '.' + str(pyv[1])
    if float(pyv_str) < 3.0:
        print('\nERROR: You must use python version 3 or higher.')
        print('This is version ' + pyv_str + '\n')
        spinner.stop()
        sys.exit(1)

    # Check dependencies
    try:
        from src.cli import swellCLI
    except ImportError:
      print('\nDependencies not installed.')
      print('\nrun:\n\tpip install -r requirements.txt\n')
      spinner.stop()
      sys.exit(1)

    # listener to catch SIGINT and exit gracefully
    signal.signal(signal.SIGINT, signal_int_handler)

    # stop spinner now
    spinner.stop()

    cli = swellCLI()
    cli.run()



# handler for SIGINT
def signal_int_handler(sig, frame):
    sys.exit('\n\nGoodbye.\n')




if __name__ == '__main__':
    main()