A question about string and float number

[Edwin.Madari at VerizonWireless.com]

type(s) == type(float())

-----Original Message-----
From: python-list-bounces+edwin.madari=verizonwireless.com at python.org [mailto:python-list-bounces+edwin.madari=verizonwireless.com at python.org]On Behalf Of Wei Guo
Sent: Wednesday, August 06, 2008 9:23 PM
To: python-list at python.org
Subject: A question about string and float number


Hi all,
 
I am new of python. Could anyone help me a question as below?
 
Is there any function that can judge a string s is a float number or not? FOr example, if s = '1.232' or s='1e+10', then it returns true, otherwise, it will return false.
 
isdigit() in string doesn't work. float() will throw an exception and I just need true or false as result.
 
Thanks a lot in advance,
 
Wei



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