Python Pickle Module Constants

Constant Name

Description

Pickle Protocol Version Related:

• These constants are to represent the pickle protocol versions.
• Higher the Version Number more refined and improvised serialization features are available to the pickling process.
• Lower the version number, the pickling and the related data exchange is supported with the earlier python versions.
• These constants are typically used while making the pickle module function calls load(), loads(),dump() and dumps()

pickle.HIGHEST_PROTOCOL

Returns the highest pickle protocol version of the Python installation.

pickle.DEFAULT_PROTOCOL

Returns the default pickle protocol version of the Python installation.

Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28)

[Clang 6.0 (clang-600.0.57)] on darwin

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>>> import pickle

>>> pickle.HIGHEST_PROTOCOL

4

>>> pickle.DEFAULT_PROTOCOL

3

>>>