# HG changeset patch # User Stefan Behnel <stefan_ml@behnel.de> # Date 1592665031 -7200 # Sat Jun 20 16:57:11 2020 +0200 # Node ID ece07b0818941a7472a06c7889c4b91cae53fb36 # Parent b7f3d8172d230ec8920ea1f548ab6c1d9c272a96 exec() did not allow recent Python syntax features in Py3.8+ due to https://bugs.python.org/issue35975 Closes https://github.com/cython/cython/issues/3695 diff --git a/CHANGES.rst b/CHANGES.rst --- a/CHANGES.rst +++ b/CHANGES.rst @@ -11,6 +11,10 @@ * Fix a regression in 0.29.20 where ``__div__`` failed to be found in extension types. (Github issue #3688) +* ``exec()`` did not allow recent Python syntax features in Py3.8+ due to + https://bugs.python.org/issue35975. + (Github issue #3695) + * Binding staticmethods of Cython functions were not behaving like Python methods in Py3. Patch by Jeroen Demeyer and Michał Górny. (Github issue #3106) diff --git a/Cython/Utility/Builtins.c b/Cython/Utility/Builtins.c --- a/Cython/Utility/Builtins.c +++ b/Cython/Utility/Builtins.c @@ -128,6 +128,9 @@ } else { PyCompilerFlags cf; cf.cf_flags = 0; +#if PY_VERSION_HEX >= 0x030800A3 + cf.cf_feature_version = PY_MINOR_VERSION; +#endif if (PyUnicode_Check(o)) { cf.cf_flags = PyCF_SOURCE_IS_UTF8; s = PyUnicode_AsUTF8String(o); diff --git a/tests/run/exectest.pyx b/tests/run/exectest.pyx --- a/tests/run/exectest.pyx +++ b/tests/run/exectest.pyx @@ -145,3 +145,18 @@ TypeError: exec: arg 1 must be string, bytes or code object, got int """ exec x in {} + + +def exec_with_new_features(s, d): + """ + >>> import sys + >>> pyversion = sys.version_info[:2] + + >>> d = {} + >>> exec_with_new_features('print(123)', d) + 123 + >>> if pyversion == (2, 7): exec_with_new_features('exec "123"', d) + >>> if pyversion >= (3, 6): exec_with_new_features('f = f"abc"', d) + >>> if pyversion >= (3, 8): exec_with_new_features('a = (b := 1)', d) + """ + exec s in d