| """Exports a no-op 'cython' namespace similar to | |
| https://github.com/cython/cython/blob/master/Cython/Shadow.py | |
| This allows to optionally compile @cython decorated functions | |
| (when cython is available at built time), or run the same code | |
| as pure-python, without runtime dependency on cython module. | |
| We only define the symbols that we use. E.g. see fontTools.cu2qu | |
| """ | |
| from types import SimpleNamespace | |
| def _empty_decorator(x): | |
| return x | |
| compiled = False | |
| for name in ("double", "complex", "int"): | |
| globals()[name] = None | |
| for name in ("cfunc", "inline"): | |
| globals()[name] = _empty_decorator | |
| locals = lambda **_: _empty_decorator | |
| returns = lambda _: _empty_decorator | |