#this is a better way of testing a string for float
def isFloat(s):
    try:
        s = float(s)
    except:
        return False
    return True

-----Original Message-----
From: Madari, Edwin 
Sent: Wednesday, August 06, 2008 10:22 PM
To: 'Wei Guo'; python-list@python.org
Subject: RE: A question about string and float number


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

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Wei Guo
Sent: Wednesday, August 06, 2008 9:23 PM
To: python-list@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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