[New-bugs-announce] [issue20642] Enhance deepcopy-ing for tuples

[Claudiu.Popa]

New submission from Claudiu.Popa:

Hello!

Here's a patch for improving the performance of tuple deepcopy-ing.

Without patch:

# ./python -m timeit -s "import copy; a=tuple(range(1000000))" -p "copy.deepcopy(a)"
10 loops, best of 3: 1.45 sec per loop

With patch:

# ./python -m timeit -s "import copy; a=tuple(range(1000000))" -p "copy.deepcopy(a)"
10 loops, best of 3: 1.32 sec per loop

----------
components: Library (Lib)
files: copy.patch
keywords: patch
messages: 211362
nosy: Claudiu.Popa, alexandre.vassalotti
priority: normal
severity: normal
status: open
title: Enhance deepcopy-ing for tuples
type: performance
versions: Python 3.5
Added file: http://bugs.python.org/file34108/copy.patch

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<http://bugs.python.org/issue20642>
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