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Re: how to check if a value is a floating point or not

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On 06/18/2014 10:53 PM, nicholascannon1@gmail.com wrote:
> I am making a calculator and i need it to support floating point values but i am using the function isnumeric to check if the user has entered an int value. I need the same for floating point types so i could implement an or in the if statement that checks the values the user has entered and allow it to check and use floating points. If you need the source code i am happy to give it to you. Thank you for your help

Your mention of *isnumeric* indicates to me that you are using Python3 
(correct?) and are wishing to test if a *string* contains characters 
that represent an int or a float (correct?).

The easiest way to test such is to just try to convert it to an int or 
float, and catch failures as an indication that it is not valid. 
Something like:

try:
   value = float(s)
except ValueError:
    ... handle invalid string ...


Gary Herron

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how to check if a value is a floating point or not nicholascannon1@gmail.com - 2014-06-18 22:53 -0700
  Re: how to check if a value is a floating point or not Gary Herron <gary.herron@islandtraining.com> - 2014-06-18 23:22 -0700
  Re: how to check if a value is a floating point or not Nicholas Cannon <nicholascannon1@gmail.com> - 2014-06-18 23:48 -0700
    Re: how to check if a value is a floating point or not Ben Finney <ben@benfinney.id.au> - 2014-06-19 17:19 +1000
    Re: how to check if a value is a floating point or not Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-19 01:23 -0600
    Re: how to check if a value is a floating point or not Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-19 01:37 -0600
  Re: how to check if a value is a floating point or not Sturla Molden <sturla.molden@gmail.com> - 2014-06-19 13:46 +0000
  Re: how to check if a value is a floating point or not Nicholas Cannon <nicholascannon1@gmail.com> - 2014-06-19 23:14 -0700
    Re: how to check if a value is a floating point or not Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-20 00:22 -0600
    Re: how to check if a value is a floating point or not Sturla Molden <sturla.molden@gmail.com> - 2014-06-20 13:16 +0000
    Re: how to check if a value is a floating point or not Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-20 14:40 +0100
      Re: how to check if a value is a floating point or not Grant Edwards <invalid@invalid.invalid> - 2014-06-20 14:28 +0000
        Re: how to check if a value is a floating point or not alister <alister.nospam.ware@ntlworld.com> - 2014-06-20 15:15 +0000
        Re: how to check if a value is a floating point or not Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-20 09:44 -0600

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