Python error ' str ' object is not callable

>>> x=1.235

>>> Int (x)

1
>>> str= "FSGAVFDBAFDBNTSBGBT"
>>> Len (str)
19
>>>
>>> x=987456123
>>> Str (x)

Will error ' str ' object is not callable.

STR () is a system-brought, you can not use it when you define a different variable called STR, this will conflict.

Change the custom str variable to a different name, STR1, and the code passes.

　

In Python, a function is actually an object, and all functions are callable objects. A class instance can also become a callable object, just to implement a special way of __call__ ().

So, when the error XXX is not callable, it is likely that you are calling a variable or object that cannot be called, specifically, you call the function, the way the variable is wrong.

Python error ' str ' object is not callable