From 0185f34ddcf07b78feb6ac666fbfd4615d26b028 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Tue, 18 Sep 2018 11:28:51 +0300
Subject:  bpo-33721: Make some os.path functions and pathlib.Path methods be
 tolerant to invalid paths.  (#7695)

Such functions as os.path.exists(), os.path.lexists(), os.path.isdir(),
os.path.isfile(), os.path.islink(), and os.path.ismount() now return False
instead of raising ValueError or its subclasses UnicodeEncodeError
and UnicodeDecodeError for paths that contain characters or bytes
unrepresentative at the OS level.
---
 Lib/pathlib.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'Lib/pathlib.py')

diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index c2986bd022..89dffa5561 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -1331,6 +1331,9 @@ class Path(PurePath):
             if e.errno not in _IGNORED_ERROS:
                 raise
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
         return True
 
     def is_dir(self):
@@ -1345,6 +1348,9 @@ class Path(PurePath):
             # Path doesn't exist or is a broken symlink
             # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def is_file(self):
         """
@@ -1359,6 +1365,9 @@ class Path(PurePath):
             # Path doesn't exist or is a broken symlink
             # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def is_mount(self):
         """
@@ -1392,6 +1401,9 @@ class Path(PurePath):
                 raise
             # Path doesn't exist
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def is_block_device(self):
         """
@@ -1405,6 +1417,9 @@ class Path(PurePath):
             # Path doesn't exist or is a broken symlink
             # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def is_char_device(self):
         """
@@ -1418,6 +1433,9 @@ class Path(PurePath):
             # Path doesn't exist or is a broken symlink
             # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def is_fifo(self):
         """
@@ -1431,6 +1449,9 @@ class Path(PurePath):
             # Path doesn't exist or is a broken symlink
             # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def is_socket(self):
         """
@@ -1444,6 +1465,9 @@ class Path(PurePath):
             # Path doesn't exist or is a broken symlink
             # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
             return False
+        except ValueError:
+            # Non-encodable path
+            return False
 
     def expanduser(self):
         """ Return a new path with expanded ~ and ~user constructs
-- 
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