bpo-35306: Avoid raising OSError from pathlib.Path.exists when passed an invalid filename (GH-25529)

miss-islington · zooba · web-flow · commit 1575ea01059b · 2021-04-22T13:25:08.000-07:00
(cherry picked from commit 4696f12) Co-authored-by: Steve Dower <steve.dower@python.org>
diff --git a/Lib/pathlib.py b/Lib/pathlib.py
@@ -39,6 +39,7 @@
 
 _IGNORED_WINERRORS = (
     21,  # ERROR_NOT_READY - drive exists but is not accessible
+    123, # ERROR_INVALID_NAME - fix for bpo-35306
     1921,  # ERROR_CANT_RESOLVE_FILENAME - fix for broken symlink pointing to itself
 )
 
diff --git a/Misc/NEWS.d/next/Windows/2021-04-22-20-39-49.bpo-35306.F0Cg6X.rst b/Misc/NEWS.d/next/Windows/2021-04-22-20-39-49.bpo-35306.F0Cg6X.rst
@@ -0,0 +1,2 @@
+Avoid raising errors from :meth:`pathlib.Path.exists()` when passed an
+invalid filename.

Original file line number	Diff line number	Diff line change
`@@ -39,6 +39,7 @@`
`39`	`39`
`40`	`40`	`_IGNORED_WINERRORS = (`
`41`	`41`	`21, # ERROR_NOT_READY - drive exists but is not accessible`
	`42`	`+ 123, # ERROR_INVALID_NAME - fix for bpo-35306`
`42`	`43`	`1921, # ERROR_CANT_RESOLVE_FILENAME - fix for broken symlink pointing to itself`
`43`	`44`	`)`
`44`	`45`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Avoid raising errors from :meth:`pathlib.Path.exists()` when passed an
	`2`	`+invalid filename.`