[Tutor] A demon command line interpreter using the 'cmd' module

2013-09-21 Thread Amit Saha
I wrote this demo command line interpreter to demonstrate using the cmd module: https://gist.github.com/amitsaha/6047955 $ python3 demo_cmd_interpreter.py Welcome to Dummy shell. Type help or ? to list commands. dummyshell>> help Documented commands (type help ): =

Re: [Tutor] Checking that the input is float()-able

2013-09-21 Thread Steven D'Aprano
On Sun, Sep 22, 2013 at 10:18:23AM +1000, Amit Saha wrote: > Hi all, > > I want my program to report an error if anything other than a number > which I can then convert to float using float() is entered as input: > > # Python 3 > try: > a = float(input('Enter a number: ')) > > except ValueEr

Re: [Tutor] Checking that the input is float()-able

2013-09-21 Thread Joel Goldstick
On Sat, Sep 21, 2013 at 8:18 PM, Amit Saha wrote: > Hi all, > > I want my program to report an error if anything other than a number > which I can then convert to float using float() is entered as input: > > # Python 3 > try: > a = float(input('Enter a number: ')) > > except ValueError: >

[Tutor] Checking that the input is float()-able

2013-09-21 Thread Amit Saha
Hi all, I want my program to report an error if anything other than a number which I can then convert to float using float() is entered as input: # Python 3 try: a = float(input('Enter a number: ')) except ValueError: print('Wrong input') else: print('Right input') This seems to do