api ai tutorial

https://pymotw.com/3/argparse/ argparse_action.py import argparse parser = argparse . ArgumentParser () parser . add_argument ( '-s' , action = 'store' , dest = 'simple_value' , help = 'Store a simple value' ) parser . add_argument ( '-c' , action = 'store_const' , dest = 'constant_value' , const = 'value-to-store' , help = 'Store a constant value' ) parser . add_argument ( '-t' , action = 'store_true' , default = False , dest = 'boolean_t' , help = 'Set a switch to true' ) parser . add_argument ( '-f' , action = 'store_false' , default = True , dest = 'boolean_f' , help = 'Set a switch to false' )

import subprocess process = subprocess.Popen([ 'youtube-dl' , '-f' , 'bestaudio' , 'https://www.youtube.com/watch?v=dCsr0CNqB3g' ], stdout =subprocess.PIPE, ) while True : output = process.stdout.readline() if output == '' and process.poll() is not None : break if output: print (output.strip()) rc = process.poll()