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#15927: Fix cvs.reader parsing of escaped \r\n with quoting off.

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This fix means that such values are correctly roundtripped, since
cvs.writer already does the correct escaping.

Patch by Michael Johnson.
This commit is contained in:
R David Murray 2013-03-19 22:41:47 -04:00
parent 04cbe0c35b
commit c7c42efb16
4 changed files with 25 additions and 1 deletions
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9
Lib/test/test_csv.py
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@ -308,6 +308,15 @@ class Test_Csv(unittest.TestCase):
for i, row in enumerate(csv.reader(fileobj)):
self.assertEqual(row, rows[i])
def test_roundtrip_escaped_unquoted_newlines(self):
with TemporaryFile("w+", newline='') as fileobj:
writer = csv.writer(fileobj,quoting=csv.QUOTE_NONE,escapechar="\\")
rows = [['a\nb','b'],['c','x\r\nd']]
writer.writerows(rows)
fileobj.seek(0)
for i, row in enumerate(csv.reader(fileobj,quoting=csv.QUOTE_NONE,escapechar="\\")):
self.assertEqual(row,rows[i])
class TestDialectRegistry(unittest.TestCase):
def test_registry_badargs(self):
self.assertRaises(TypeError, csv.list_dialects, None)