[New-bugs-announce] [issue4647] Builtin parser module fails to parse relative imports

[Kay Schluehr]

New submission from Kay Schluehr <kay at fiber-space.de>:

I've added the following test method:

test_parser.py 
--------------
class RoundtripLegalSyntaxTestCase(unittest.TestCase):

    def test_relative_import_statement(self):
        self.check_suite("from . import sys")

The test fails raising the message:

Traceback (most recent call last):
  File "test_parser.py", line 182, in test_relative_import_statement
    self.check_suite("from . import sys")
  File "test_parser.py", line 29, in check_suite
    self.roundtrip(parser.suite, s)
  File "test_parser.py", line 20, in roundtrip
    self.fail("could not roundtrip %r: %s" % (s, why))
AssertionError: could not roundtrip 'from . import sys': Expected node
type 1, got 23.


Apparently the parser expects a NAME token and gets a DOT token.

This behaviour affects Python 2.5 and Python 2.6. Unchecked for Python 3.0.

----------
components: Interpreter Core
messages: 77690
nosy: schluehk
severity: normal
status: open
title: Builtin parser module fails to parse relative imports
type: behavior
versions: Python 2.5, Python 2.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4647>
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