bpo-31336: Speed up type creation, which is highly dominated by slow dict lookups.#3279

Merged

serhiy-storchaka merged 20 commits into

python:masterfrom

scoder:_fast_pytype_lookup

Oct 1, 2017

Commits on Sep 4, 2017

Speed up type creation, which is highly dominated by slow dict lookups.
Stefan Behnel
committed
Update comment after changing the function call that it refers to.
Stefan Behnel
committed
Ignore any errors (however unlikely) that may happen during the mro chained name lookups in _PyType_Lookup().
Stefan Behnel
committed

Commits on Sep 5, 2017

Commits on Sep 6, 2017

Add comment.
Stefan Behnel
committed
Avoid uselessly searching empty bases for a metaclass. This is quite common in Python 3 now.
Stefan Behnel
committed

Commits on Sep 10, 2017

Avoid unsafe handling of borrowed "mro" reference during hash() call.
Stefan Behnel
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Clean up code and formatting a little.
Stefan Behnel
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Add braces for code style reasons.
Stefan Behnel
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Give internal helper function a local name that does not resemble (existing) API names.
Stefan Behnel
committed

Commits on Sep 11, 2017

Commits on Sep 13, 2017

add news entry for faster class creation
Stefan Behnel
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Change nice interface of "find_name_in_mro()" to evil interface eating lookup exceptions, just like "_PyType_Lookup()" did previously.
Stefan Behnel
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Mention amount of speedup in News entry.
Stefan Behnel
committed

Commits on Sep 14, 2017