Mercurial > cpython-lru_cache-weakref
diff Python/compile.c @ 14077:b678491f7e11 legacy-trunk
Disallow "import mod.submod as m", because the result is ambiguous. Does it
load mod.submod as m, or mod as m ? Both can be achieved differently, and
unambiguously. Also attempt to document this restriction (editor
appreciated!)
Note that this is an artificial check during compile, because incorporating
this in the grammar is hard, and then adjusting the compiler to do the right
thing with the right nodes is harder.
| author | Thomas Wouters <thomas@python.org> |
|---|---|
| date | Sat, 19 Aug 2000 20:55:02 +0000 |
| parents | 920fc2868543 |
| children | 468481135c49 |
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--- a/Python/compile.c Sat Aug 19 16:55:31 2000 +0000 +++ b/Python/compile.c Sat Aug 19 20:55:02 2000 +0000 @@ -2139,7 +2139,8 @@ com_addopname(c, IMPORT_NAME, CHILD(subn, 0)); com_push(c, 1); if (NCH(subn) > 1) { - if (strcmp(STR(CHILD(subn, 1)), "as") != 0) { + if (strcmp(STR(CHILD(subn, 1)), "as") != 0 || + NCH(CHILD(subn, 0)) > 1) { com_error(c, PyExc_SyntaxError, "invalid syntax"); return;