Convert imperial units (feet, inches) to metres

fee2metres.py

# -*- coding: utf-8 -*-
""" Purpose: Convert imperial units (feet, inches) to metres

Created: 2017-10-17
Author:  dhohls@csir.co.za

Notes:
    This is quite useful if you have a house plan where all the units are
    Imperial (typically American or old European plans) and you need to 
    compare against modern plans.

Usages::
    python feet2metres.py -n 3 -m 5
    python feet2metres.py -i
"""
from __future__ import print_function
import argparse

__author__ = "Derek Hohls"
__license__ = "GPL"
__version__ = "1.0.1"

MIN = 5
MAX = 24
PRECISION = 1


def reformat(feet, inches, metres):
    _feet = str(feet).rjust(2, ' ')
    _inches = str(inches).rjust(2, ' ')
    _metres = str(round(metres, PRECISION))
    return _feet, _inches, _metres


def main(args):
    minimum = args.min or MIN
    maximum = args.max or MAX
    interactive = args.interactive
    #print (minimum, maximum, interactive)
    if not interactive:
        for feet in range(int(minimum), int(maximum)):
            for inches in range(0, 12):
                metres = feet * 0.3048 + inches * 0.0254
                _feet, _inches, _metres = reformat(feet, inches, metres)
                print('%s`%s" = %sm' % (_feet, _inches, _metres))
    else:
        imperial = None
        while True:
            imperial = raw_input('Enter imperial value (feet.inches): ')
            if imperial and imperial in ['q', 'Q']:
                break
            try:
                if '.' in str(imperial):
                    feet, inches = str(imperial).split('.')
                else:
                    feet = str(imperial)
                    inches = '0'
                metres = float(feet) * 0.3048 + float(inches) * 0.0254
                _feet, _inches, _metres = reformat(feet, inches, metres)
                print('%s`%s" = %sm' % (_feet, _inches, _metres))
            except Exception as err:
                pass


if __name__ == '__main__':
    PARSER = argparse.ArgumentParser()
    PARSER.add_argument(
        '-i', '--interactive', default=False, action='store_true',
        help="If set, then run in interactive mode (q to quit)")
    PARSER.add_argument(
        '-n', '--min',
        help="Specify the minimum number of feet (default: 5)")
    PARSER.add_argument(
        '-m', '--max',
        help="Specify the maximum number of feet (default: 24)")
    PARSER.add_argument(
        '-ll', '--loglevel', default='WARNING',
        choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
        help="Set log level for service (default: WARNING)")
    ARGS = PARSER.parse_args()
    LOG_LEVEL = ARGS.loglevel
    main(ARGS)