TypeError: 'int' object is not callable

Traceback (most recent call last):
  File "/Users/lyk/Documents/CPP/t.py", line 49, in <module>
    if(check(mid,l,k)):
  File "/Users/lyk/Documents/CPP/t.py", line 14, in check
    print(len(temp_l))
TypeError: 'int' object is not callable