Mercurial > cpython-lru_cache-weakref
diff Include/pythonrun.h @ 36712:5c36c222e7ca legacy-trunk
SF patch #1438387, PEP 328: relative and absolute imports.
- IMPORT_NAME takes an extra argument from the stack: the relativeness of
the import. Only passed to __import__ when it's not -1.
- __import__() takes an optional 5th argument for the same thing; it
__defaults to -1 (old semantics: try relative, then absolute)
- 'from . import name' imports name (be it module or regular attribute)
from the current module's *package*. Likewise, 'from .module import name'
will import name from a sibling to the current module.
- Importing from outside a package is not allowed; 'from . import sys' in a
toplevel module will not work, nor will 'from .. import sys' in a
(single-level) package.
- 'from __future__ import absolute_import' will turn on the new semantics
for import and from-import: imports will be absolute, except for
from-import with dots.
Includes tests for regular imports and importhooks, parser changes and a
NEWS item, but no compiler-package changes or documentation changes.
| author | Thomas Wouters <thomas@python.org> |
|---|---|
| date | Tue, 28 Feb 2006 16:09:29 +0000 |
| parents | 3c0b26113df6 |
| children | bbf16fd024df |
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--- a/Include/pythonrun.h Tue Feb 28 12:11:57 2006 +0000 +++ b/Include/pythonrun.h Tue Feb 28 16:09:29 2006 +0000 @@ -7,7 +7,7 @@ extern "C" { #endif -#define PyCF_MASK (CO_FUTURE_DIVISION) +#define PyCF_MASK (CO_FUTURE_DIVISION | CO_FUTURE_ABSIMPORT) #define PyCF_MASK_OBSOLETE (CO_NESTED) #define PyCF_SOURCE_IS_UTF8 0x0100 #define PyCF_DONT_IMPLY_DEDENT 0x0200