braden faulkner wrote:
> I'm using a menu for my command line app using this method.
>
> choice = "foobar"
> while choice != "q":
> if choice == "c":
> temp = input("Celsius temperature:")
> print "Fahrenheit:",celsius_to_fahrenheit(temp)
> elif choice == "f":
> temp = input("Fahrenheit temperature:")
> print "Celsius:",fahrenheit_to_celsius(temp)
> elif choice != "q":
> print_options()
> choice = raw_input("option:")
>
> Just wondering if there is another or more efficient way I should be doing
> it?
The user interface will be slightly different, but the cmd module is great
to build simple interactive command line apps quickly:
# -*- coding: utf-8 -*-
from __future__ import division
import cmd
class Cmd(cmd.Cmd):
prompt = "Enter a command (? for help) --> "
def do_celsius_to_fahrenheit(self, value):
"""Convert Celsius to Fahrenheit"""
celsius = float(value)
print u"%f °F" % (celsius * 9/5 + 32)
def do_fahrenheit_to_celsius(self, value):
fahrenheit = float(value)
print u"%f °C" % ((fahrenheit - 32) * 5/9)
def do_quit(self, value):
return True
do_EOF = do_quit
Cmd().cmdloop()
A sample session:
$ python convert_temperature.py
Enter a command (? for help) --> ?
Documented commands (type help <topic>):
========================================
celsius_to_fahrenheit
Undocumented commands:
======================
EOF fahrenheit_to_celsius help quit
Enter a command (? for help) --> ? celsius_to_fahrenheit
Convert Celsius to Fahrenheit
Enter a command (? for help) --> celsius_to_fahrenheit 0
32.000000 °F
Enter a command (? for help) --> fahrenheit_to_celsius 212
100.000000 °C
Enter a command (? for help) --> quit
$
Peter
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