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gh-154675: Improve import performance of tkinter library with lazy imports #148409

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gh-154675: Improve import performance of tkinter library with lazy imports #148409

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f0e2f9b
Lazy import modules in tkinter __init__
sharktide Apr 11, 2026
4bcb491
Add _get_magic_re and _get_space_re functions.
sharktide Apr 11, 2026
995d6a1
Update usage in _stringify
sharktide Apr 11, 2026
44567a4
Add docstring to new functions
sharktide Apr 11, 2026
0dfab78
Format
sharktide Apr 11, 2026
ce94f9e
Add NEWS entry
sharktide Apr 11, 2026
01000ea
Move lazy import re down in the file
sharktide Apr 12, 2026
1da6e7b
Reorder imports for clarity
sharktide Apr 12, 2026
f0bd1eb
Stop lazy imported modules from appearing in __all__
sharktide Apr 12, 2026
e9803f4
Remove lazy import from sys and types
sharktide Apr 12, 2026
8350043
Improved docstrings for new functions
sharktide Apr 12, 2026
2558665
Add TestTkImportTime test class in MISC
sharktide Apr 12, 2026
5674a95
Lazy import os and traceback
sharktide Apr 12, 2026
b78daf7
Fix import in lazy import test
sharktide Apr 12, 2026
e269325
Update NEWS entry
sharktide Apr 12, 2026
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Reorder imports for clarity
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@sharktide
sharktide authored Apr 12, 2026
commit 1da6e7b7cc0063fc347b5a24b2d0730761335bf2
8 changes: 3 additions & 5 deletions Lib/tkinter/__init__.py
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Expand Up @@ -31,12 +31,12 @@
"""
import _tkinter # If this fails your Python may not be configured for Tk
from tkinter.constants import *
import collections
import enum

lazy import collections
lazy import enum
lazy import sys
lazy import types
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lazy import re
TclError = _tkinter.TclError

wantobjects = 1
Expand All @@ -45,8 +45,6 @@
TkVersion = float(_tkinter.TK_VERSION)
TclVersion = float(_tkinter.TCL_VERSION)

lazy import re

READABLE = _tkinter.READABLE
WRITABLE = _tkinter.WRITABLE
EXCEPTION = _tkinter.EXCEPTION
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