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bpo-33836: Fix code example in the documentation. #7687

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Jun 16, 2018
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bpo-33836: Fix code example in the documentation. #7687

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4 changes: 2 additions & 2 deletions Doc/faq/programming.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -371,8 +371,8 @@ compute, a common technique is to cache the parameters and the resulting value
of each call to the function, and return the cached value if the same value is
requested again. This is called "memoizing", and can be implemented like this::

# Callers will never provide a third parameter for this function.
def expensive(arg1, arg2, _cache={}):
# Callers can only provide two parameters and optionally pass _cache by keyword
def expensive(arg1, arg2, *, _cache={}):
if (arg1, arg2) in _cache:
return _cache[(arg1, arg2)]

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