Implement #7566 - os.path.sameopenfile for Windows.
This uses the GetFileInformationByHandle function to return a tuple of values
to identify a file, then ntpath.sameopenfile compares file tuples, which
is exposed as os.path.sameopenfile.
diff --git a/Lib/ntpath.py b/Lib/ntpath.py
index ee7ac67..eae3cf3 100644
--- a/Lib/ntpath.py
+++ b/Lib/ntpath.py
@@ -10,6 +10,7 @@
import stat
import genericpath
from genericpath import *
+from nt import _getfileinformation
__all__ = ["normcase","isabs","join","splitdrive","split","splitext",
"basename","dirname","commonprefix","getsize","getmtime",
@@ -17,7 +18,7 @@
"ismount", "expanduser","expandvars","normpath","abspath",
"splitunc","curdir","pardir","sep","pathsep","defpath","altsep",
"extsep","devnull","realpath","supports_unicode_filenames","relpath",
- "samefile",]
+ "samefile", "sameopenfile",]
# strings representing various path-related bits and pieces
# These are primarily for export; internally, they are hardcoded.
@@ -652,3 +653,7 @@
# Also, on other operating systems, fake this method with a
# Windows-XP approximation.
return abspath(f1) == abspath(f2)
+
+def sameopenfile(f1, f2):
+ """Test whether two file objects reference the same file"""
+ return _getfileinformation(f1) == _getfileinformation(f2)