[Tutor] how to accept an integer?
kent37 at tds.net
Wed Dec 5 22:24:48 CET 2007
Mahesh N wrote:
> I dun understand the mistake. My aim is to accept an integer number. The
> python lookup in IDLE asks for a string object but the interpreter
> returns with the following error message. Some one pls explain.
> Thank You
> PS : I understand that i can do type conversion after getting input thru
> raw_input(). But how does input() function work?
> >>> prompt="temme a number\n"
> >>> speed =input(prompt)
> Traceback (most recent call last):
> File "<pyshell#56>", line 1, in <module>
> speed =input(prompt)
> TypeError: 'str' object is not callable
> >>> speed =input("temme a number\n")
It looks like you have named a string 'input'; this hides the built-in
'input' function and causes the error you are seeing. Restart IDLE and
input() should work correctly.
A safer way to accept an integer is to use raw_input() and convert the
speed = int(raw_input(prompt))
print 'You did not enter an integer'
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