pydoc > _compat_pickle

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📛 NAME

_compat_pickle

🚀 Quick Reference

Use Case	Mapping	Description
🗄️ Python 2 → Python 3 module import	IMPORT_MAPPING	Maps old Python 2 module names to their Python 3 equivalents (e.g., BaseHTTPServer → http.server)
🔁 Reverse Python 3 → Python 2 module import	REVERSE_IMPORT_MAPPING	Maps back Python 3 internal module names to Python 2 names (e.g., _bz2 → bz2)
🏷️ Python 2 → Python 3 name (class/function)	NAME_MAPPING	Maps old (module, name) pairs to new (module, name) (e.g., ('UserDict', 'IterableUserDict') → ('collections', 'UserDict'))
🔁 Reverse Python 3 → Python 2 name	REVERSE_NAME_MAPPING	Maps back new names to old (e.g., ('_functools', 'reduce') → ('__builtin__', 'reduce'))
⚠️ Python 2 exceptions list	PYTHON2_EXCEPTIONS	Set of exception names that existed in Python 2 (e.g., ArithmeticError, AssertionError)
🚫 Python 3 import error exceptions	PYTHON3_IMPORTERROR_EXCEPTIONS	Set of exception names related to import errors in Python 3 (e.g., ModuleNotFoundError)
📂 Python 3 OS error exceptions	PYTHON3_OSERROR_EXCEPTIONS	Set of exception names under OSError in Python 3 (e.g., BrokenPipeError, ChildProcessError)
🧵 Multiprocessing exceptions	MULTIPROCESSING_EXCEPTIONS	Set of exception names from the multiprocessing module (e.g., AuthenticationError, BufferTooShort)

📚 MODULE REFERENCE

https://docs.python.org/3.10/library/_compat_pickle.html

The following documentation is automatically generated from the Python source files. It may be incomplete, incorrect or include features that are considered implementation detail and may vary between Python implementations. When in doubt, consult the module reference at the location listed above.

📝 DESCRIPTION

This module is used to map the old Python 2 names to the new names used in Python 3 for the pickle module. This is needed to make pickle streams generated with Python 2 loadable by Python 3.

📊 DATA

• IMPORT_MAPPING = {'BaseHTTPServer': 'http.server', 'CGIHTTPServer': 'h...
• MULTIPROCESSING_EXCEPTIONS = ('AuthenticationError', 'BufferTooShort',...
• NAME_MAPPING = {('UserDict', 'IterableUserDict'): ('collections', 'Use...
• PYTHON2_EXCEPTIONS = ('ArithmeticError', 'AssertionError', 'AttributeE...
• PYTHON3_IMPORTERROR_EXCEPTIONS = ('ModuleNotFoundError',)
• PYTHON3_OSERROR_EXCEPTIONS = ('BrokenPipeError', 'ChildProcessError', ...
• REVERSE_IMPORT_MAPPING = {'_bz2': 'bz2', '_dbm': 'dbm', '_dummy_thread...
• REVERSE_NAME_MAPPING = {('_functools', 'reduce'): ('__builtin__', 'red...
• excname = 'ModuleNotFoundError'

📁 FILE

/usr/lib/python3.10/_compat_pickle.py

📛 NAME 🚀 Quick Reference 📚 MODULE REFERENCE 📝 DESCRIPTION 📊 DATA 📁 FILE