Tuple passed to function recognised as string

[Albert Hopkins]

On Wed, 2009-03-18 at 16:58 -0700, Mike314 wrote:
> Hello,
> 
>    I have following code:
> 
> def test_func(val):
>     print type(val)
> 
> test_func(val=('val1'))
> test_func(val=('val1', 'val2'))
> 
> The output is quite different:
> 
> <type 'str'>
> <type 'tuple'>
> 
> Why I have string in the first case?

You could have verified this simply by getting rid of the function
altogether:

>>> type(('val1'))
--> <type 'str'>

Hint 1:
>>> type((6))
--> <type 'int'>

Hint 2: It's not the parentheses that define a tuple, it's the comma(s)
>>> x = 'val1',

>>> type(x)
--> <type 'tuple'>