On 04/09/06, Dr. Pastor <[EMAIL PROTECTED]> wrote:
> In the following code I would like to ascertain
> that x has/is a number. What the simplest TEST should be?
> (Could not find good example yet.)
> ---
> x=raw_input('\nType a number from 1 to 20')
> if TEST :
> Do_A
> else:
> Do_B
> ---
Something simple like the following might help,
>>> def numtest():
... x=raw_input('\nType a number from 1 to 20')
... try:
... x=int(x)
... print x, "is a number between 1 & 20 "
... except:
... print x, "is not a number"
...
>>> numtest() # enter 1
1 is a number between 1 & 20
>>> numtest() # enter "f"
f is not a number
its not a final solution though, think input = -2, 5.5 or 21
HTH :)
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