type of simple object

[Jacek Generowicz]

"ajikoe at gmail.com" <ajikoe at gmail.com> writes:

> Hello Jacek,
> 
> Thanks for the answer,
> 
> Can you tell me how can I check if an object is a sequence (you are
> right, this is actually what I want)?

You try to use it as a sequence. If it works, then it was a
sequence. If it was not a sequence, you handle the exception and do
something appropriate.

For example:

>>> def f(seq, something):
...     try:
...             number = sum(something)
...     except TypeError:
...             number = something
...     return [number*item for item in seq]
... 
>>> f([1,2,3], 4)
[4, 8, 12]
>>> f([1,2,3], [1,2,3])
[6, 12, 18]
>>> f([1,2,3], (1,2,3))
[6, 12, 18]
>>> f([1,2,3], {1:'one', 2:'two', 3:'three'})
[6, 12, 18]