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# DP: Proposed patch for https://bugs.python.org/issue35907
diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py
index 1ce9201c0693..e5f210e62a18 100644
--- a/Lib/test/test_urllib.py
+++ b/Lib/test/test_urllib.py
@@ -1023,6 +1023,18 @@ def open_spam(self, url):
"spam://c:|windows%/:=&?~#+!$,;'@()*[]|/path/"),
"//c:|windows%/:=&?~#+!$,;'@()*[]|/path/")
+ def test_local_file_open(self):
+ class DummyURLopener(urllib.URLopener):
+ def open_local_file(self, url):
+ return url
+ self.assertEqual(DummyURLopener().open(
+ 'local-file://example'), '//example')
+ self.assertEqual(DummyURLopener().open(
+ 'local_file://example'), '//example')
+ self.assertRaises(IOError, urllib.urlopen,
+ 'local-file://example')
+ self.assertRaises(IOError, urllib.urlopen,
+ 'local_file://example')
# Just commented them out.
# Can't really tell why keep failing in windows and sparc.
diff --git a/Lib/urllib.py b/Lib/urllib.py
index d85504a5cb7e..a24e9a5c68fb 100644
--- a/Lib/urllib.py
+++ b/Lib/urllib.py
@@ -203,7 +203,10 @@ def open(self, fullurl, data=None):
name = 'open_' + urltype
self.type = urltype
name = name.replace('-', '_')
- if not hasattr(self, name):
+
+ # bpo-35907: # disallow the file reading with the type not allowed
+ if not hasattr(self, name) or \
+ (self == _urlopener and name == 'open_local_file'):
if proxy:
return self.open_unknown_proxy(proxy, fullurl, data)
else:
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