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Clarify comment about Pyhton versions

This commit is contained in:
Eugenio Lacuesta 2018-02-08 15:47:20 -03:00
parent 0d87e77afe
commit 6edd4114c4
1 changed files with 3 additions and 3 deletions
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6
scrapy/squeues.py
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@ -25,9 +25,9 @@ def _serializable_queue(queue_class, serialize, deserialize):
def _pickle_serialize(obj):
try:
return pickle.dumps(obj, protocol=2)
# Python<=3.4 raises pickle.PicklingError here while
# Python>=3.5 raises AttributeError and
# Python>=3.6 raises TypeError
# Python <= 3.4 raises pickle.PicklingError here while
# 3.5 <= Python < 3.6 raises AttributeError and
# Python >= 3.6 raises TypeError
except (pickle.PicklingError, AttributeError, TypeError) as e:
raise ValueError(str(e))