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Issue #26182: Raise DeprecationWarning for improper use of async/await keywords

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This commit is contained in:
Yury Selivanov 2016-09-15 12:50:23 -04:00
parent 6775231597
commit 8987c9d219
6 changed files with 125 additions and 56 deletions
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20
Python/ast.c
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@ -938,6 +938,26 @@ forbidden_name(struct compiling *c, identifier name, const node *n,
ast_error(c, n, "assignment to keyword");
return 1;
}
if (PyUnicode_CompareWithASCIIString(name, "async") == 0 ||
PyUnicode_CompareWithASCIIString(name, "await") == 0)
{
PyObject *message = PyUnicode_FromString(
"'async' and 'await' will become reserved keywords"
" in Python 3.7");
if (message == NULL) {
return 1;
}
if (PyErr_WarnExplicitObject(
PyExc_DeprecationWarning,
message,
c->c_filename,
LINENO(n),
NULL,
NULL) < 0)
{
return 1;
}
}
if (full_checks) {
const char * const *p;
for (p = FORBIDDEN; *p; p++) {