checking if a string contains a number
steve at REMOVETHIScyber.com.au
Tue Dec 20 22:37:41 CET 2005
On Tue, 20 Dec 2005 19:16:46 +0530, Suresh Jeevanandam wrote:
> I have a string like,
> s1 = '12e3'
> s2 = 'junk'
> Now before converting these values to float, I want to check if they
> are valid numbers.
Just try converting them:
float_list = 
for s in string_list:
# ignore bad strings
> s1.isdigit returns False.
"2" is a digit. "23" is two digits. You want something like s1.isfloat(),
but why bother checking first? Just Do It.
> Is there any other function which would return True for s1 and False
> for s2.
>From an interactive interpreter, call dir(s1). That will give you a list
of string methods. Then call help(s1.method) to learn what that method
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