Me neither... Python will never ceases to surprise me. :)

That's not an issue. Your code is too slow. The 6s time limit exists to test performance.
You need to think of a better way calculate the answer.

The number n maybe as large as 1000000000.

that was a really smart way to using re.split ,bypassed a great deal of punctuation handling

nice work

Please mark all solution relevant texts as spoilers–even if you post a comment on a solution, and yes, even if you post in Chinese.

By the way, you will get more feedback if you write in English.

That being said, nice solution, although your explanation is a little bit wordy.

You return None if the number isn't a square. For example your is_square(3) is None. But it should be False. This is also reported by the tests:

should work for random numbers
  Your solution was incorrect on 1845030339: None should equal False

(The number will of course vary)

i was maded the same mistake as you do, after desperately retring still failed ,i checked the solutions
then i found ,i was misunderstood the question .
the make_lazy function should return the function modding(*arg) itself ,but not the result of modding(*arg).
it's quite different .
this is why you got the error "TypeError: 'int' object is not callable":
you code:

def make_lazy(f, *args):
return f(*args)

this above of code return the result of modding(4,4) ,which is 0 ,that is a number.
but the Test program expected the first arg is the function .
so the test code will like this

0()

so the type error occured .

this solution is best for the beginer to understand how to resove this problem