About python: 'str' object is not callable
Run python custom error method:
TypeError：‘str’ object is not callable
Cause: variable name in the function of the custom variable name in question, with the existing internal variable and function names as a custom variable name
Modification method: find inappropriate and modify the variable name
(A quick way to find the variable name: nodepad ++ code into a text editor, adjust color language python, observed variables)
