Python> datetime> runtime arguments> start processing immediately

Operating environment

Raspberry Pi 2 Model B (Below RPi)
Raspbian Jessie
Python 2.7.9

Implemented wait processing in Python> datetime> Wait until start time, minute, second.

On the other hand, under certain conditions, you may want to start right away.

Implemented the process to check the run-time arguments.

For import

util_arg_no_wait_170825.py

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import argparse

# PEP8


def hasNoWaitArgument():
    parser = argparse.ArgumentParser(description="wait mode")

    parser.add_argument(
        '-n',
        '--noWaitStart',
        dest='noWaitStart',
        action='store_true',
        help='no wait start')

    cmd_args = parser.parse_args()
    return cmd_args.noWaitStart


if __name__ == '__main__':
    if not hasNoWaitArgument():
        print('waiting')
        # do some wait
    print('started')

help

$ python util_arg_no_wait_170825.py -h
usage: util_arg_no_wait_170825.py [-h] [-n]

wait mode

optional arguments:
  -h, --help         show this help message and exit
  -n, --noWaitStart  no wait start

Execution example with wait

$ python util_arg_no_wait_170825.py 
waiting
started

Execution example without wait

$ python util_arg_no_wait_170825.py -n
started

Example of use

http://qiita.com/7of9/items/0ec6c6b830409dfc0441 If you also use util_wait_170825.py (v0.2).

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import time
import serial
import datetime
import util_wait_170825 as wai
import util_arg_no_wait_170825 as arg_nw

#=== { Configuration
#start time
ST_HH, ST_MM, ST_SS = 16, 4, 0
#=== }


if not arg_nw.hasNoWaitArgument():
    print('waiting')
    wai.wait_until(ST_HH, ST_MM, ST_SS)

#Processing something...