Counting python method calls within another method

Question

I\'m actually trying doing this in Java, but I\'m in the process of teaching myself python and it made me wonder if there was an easy/clever way to do this with wrappers or

Answer 1

This defines a decorator to do it:

def count_calls(fn):
    def _counting(*args, **kwargs):
        _counting.calls += 1
        return fn(*args, **kwargs)
    _counting.calls = 0
    return _counting

@count_calls
def foo(x):
    return x

def bar(y):
    foo(y)
    foo(y)

bar(1)
print foo.calls