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tcopy

Do not use this.

A direct tail call optimizing decorator for Python.

Examples:

from tcopy import tco

@tco
def fib(n, x=0, y=1):
    if n == 0:
        return x
    return fib(n - 1, y, x + y)

The tco decorator will rewrite fib into the following at definition time:

def fib(n, x=0, y=1):
    while 1:
        if n == 0:
            return x
        n, x, y = n - 1, y, x + y

Quirks

tco uses inspect.getsource to grab a function's source code from disk. Because of this, the decorator does not work in the Python REPL.

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Tail call optimization for Python.

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