python3: Overloads the builtin `print()` function to print the file and line number where the print occurs.

print_function_debug_overload.py

'''
Overloads the builtin `print()` function to print the file and line number
where the print occurs, similarly to Javascript's `console.log()`.
Useful when in development. Just import this file at the top of your project.
'''

import builtins
import inspect
import os

def prnwrapper(fn):
    def print_with_filename_and_linenumber(*args, **kwargs):
        current_line = inspect.currentframe().f_back.f_lineno
        current_file = os.path.basename(inspect.getfile(inspect.currentframe().f_back))
        args = ["[%s:%d] " % (current_file, current_line)] + list(args)
        fn(*args, **kwargs)

    return print_with_filename_and_linenumber

builtins.print = prnwrapper(builtins.print)
 @aizquier