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diff --git a/Lib/test/multibytecodec_support.py b/Lib/test/multibytecodec_support.py
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index 5b2329b6d84..53b5d64d453 100644
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--- a/Lib/test/multibytecodec_support.py
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+++ b/Lib/test/multibytecodec_support.py
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@@ -279,30 +279,22 @@ class TestBase_Mapping(unittest.TestCase):
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self._test_mapping_file_plain()
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def _test_mapping_file_plain(self):
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- _unichr = lambda c: eval("u'\\U%08x'" % int(c, 16))
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- unichrs = lambda s: u''.join(_unichr(c) for c in s.split('+'))
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+ def unichrs(s):
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+ return ''.join(unichr(int(x, 16)) for x in s.split('+'))
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urt_wa = {}
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with self.open_mapping_file() as f:
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for line in f:
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if not line:
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break
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- data = line.split('#')[0].strip().split()
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+ data = line.split('#')[0].split()
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if len(data) != 2:
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continue
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- csetval = eval(data[0])
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- if csetval <= 0x7F:
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- csetch = chr(csetval & 0xff)
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- elif csetval >= 0x1000000:
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- csetch = chr(csetval >> 24) + chr((csetval >> 16) & 0xff) + \
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- chr((csetval >> 8) & 0xff) + chr(csetval & 0xff)
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- elif csetval >= 0x10000:
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- csetch = chr(csetval >> 16) + \
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- chr((csetval >> 8) & 0xff) + chr(csetval & 0xff)
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- elif csetval >= 0x100:
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- csetch = chr(csetval >> 8) + chr(csetval & 0xff)
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- else:
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+ if data[0][:2] != '0x':
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+ self.fail("Invalid line: {!r}".format(line))
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+ csetch = bytes.fromhex(data[0][2:])
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+ if len(csetch) == 1 and 0x80 <= csetch[0]:
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continue
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unich = unichrs(data[1])
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