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authorHai Shi <shihai1992@gmail.com>2020-10-14 15:43:31 (GMT)
committerGitHub <noreply@github.com>2020-10-14 15:43:31 (GMT)
commitc5b049b91ca50c615f9a5425055c2b79a82ac547 (patch)
tree7fac1361bbd7bb7ca533f034d800e593b32266b4
parentb4d895336a4692c95b4533adcc5c63a489e5e4e4 (diff)
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bpo-39337: encodings.normalize_encoding() now ignores non-ASCII characters (GH-22219)
-rw-r--r--Doc/whatsnew/3.10.rst5
-rw-r--r--Lib/encodings/__init__.py3
-rw-r--r--Lib/test/test_codecs.py14
-rw-r--r--Misc/NEWS.d/next/Library/2020-09-13-02-02-18.bpo-39337.L3NXTt.rst1
4 files changed, 21 insertions, 2 deletions
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index c8ddcd2..738ef97 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -186,6 +186,11 @@ by :func:`curses.color_content`, :func:`curses.init_color`,
support is provided by the underlying ncurses library.
(Contributed by Jeffrey Kintscher and Hans Petter Jansson in :issue:`36982`.)
+encodings
+---------
+:func:`encodings.normalize_encoding` now ignores non-ASCII characters.
+(Contributed by Hai Shi in :issue:`39337`.)
+
glob
----
diff --git a/Lib/encodings/__init__.py b/Lib/encodings/__init__.py
index ddd5afd..4b37d33 100644
--- a/Lib/encodings/__init__.py
+++ b/Lib/encodings/__init__.py
@@ -61,7 +61,8 @@ def normalize_encoding(encoding):
if c.isalnum() or c == '.':
if punct and chars:
chars.append('_')
- chars.append(c)
+ if c.isascii():
+ chars.append(c)
punct = False
else:
punct = True
diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py
index ddf4e08..09ceef7 100644
--- a/Lib/test/test_codecs.py
+++ b/Lib/test/test_codecs.py
@@ -3417,7 +3417,7 @@ class Rot13UtilTest(unittest.TestCase):
class CodecNameNormalizationTest(unittest.TestCase):
"""Test codec name normalization"""
- def test_normalized_encoding(self):
+ def test_codecs_lookup(self):
FOUND = (1, 2, 3, 4)
NOT_FOUND = (None, None, None, None)
def search_function(encoding):
@@ -3439,6 +3439,18 @@ class CodecNameNormalizationTest(unittest.TestCase):
self.assertEqual(NOT_FOUND, codecs.lookup('BBB.8'))
self.assertEqual(NOT_FOUND, codecs.lookup('a\xe9\u20ac-8'))
+ def test_encodings_normalize_encoding(self):
+ # encodings.normalize_encoding() ignores non-ASCII characters.
+ normalize = encodings.normalize_encoding
+ self.assertEqual(normalize('utf_8'), 'utf_8')
+ self.assertEqual(normalize('utf\xE9\u20AC\U0010ffff-8'), 'utf_8')
+ self.assertEqual(normalize('utf 8'), 'utf_8')
+ # encodings.normalize_encoding() doesn't convert
+ # characters to lower case.
+ self.assertEqual(normalize('UTF 8'), 'UTF_8')
+ self.assertEqual(normalize('utf.8'), 'utf.8')
+ self.assertEqual(normalize('utf...8'), 'utf...8')
+
if __name__ == "__main__":
unittest.main()
diff --git a/Misc/NEWS.d/next/Library/2020-09-13-02-02-18.bpo-39337.L3NXTt.rst b/Misc/NEWS.d/next/Library/2020-09-13-02-02-18.bpo-39337.L3NXTt.rst
new file mode 100644
index 0000000..c2b4dbe
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-09-13-02-02-18.bpo-39337.L3NXTt.rst
@@ -0,0 +1 @@
+:func:`encodings.normalize_encoding` now ignores non-ASCII characters.