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Code Issues Projects Releases Packages Wiki Activity Actions 9

Issue #9130: Validate ellipsis tokens in relative imports.

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This commit is contained in:
Mark Dickinson 2010-07-04 18:38:57 +00:00
parent 3445b482b3
commit feb3b75818
2 changed files with 12 additions and 6 deletions
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6
Lib/test/test_parser.py
View file

@ -192,8 +192,14 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase):
def test_relative_imports(self):
self.check_suite("from . import name")
self.check_suite("from .. import name")
# check all the way up to '....', since '...' is tokenized
# differently from '.' (it's an ellipsis token).
self.check_suite("from ... import name")
self.check_suite("from .... import name")
self.check_suite("from .pkg import name")
self.check_suite("from ..pkg import name")
self.check_suite("from ...pkg import name")
self.check_suite("from ....pkg import name")
def test_pep263(self):
self.check_suite("# -*- coding: iso-8859-1 -*-\n"

4
Modules/parsermodule.c
View file

@ -1754,7 +1754,7 @@ validate_import_name(node *tree)
&& validate_dotted_as_names(CHILD(tree, 1)));
}
/* Helper function to count the number of leading dots in
/* Helper function to count the number of leading dots (or ellipsis tokens) in
* 'from ...module import name'
*/
static int
@ -1762,7 +1762,7 @@ count_from_dots(node *tree)
{
int i;
for (i = 1; i < NCH(tree); i++)
if (TYPE(CHILD(tree, i)) != DOT)
if (TYPE(CHILD(tree, i)) != DOT && TYPE(CHILD(tree, i)) != ELLIPSIS)
break;
return i - 1;
}