eryksun added the comment:
> Is there a way people can set errno to zero from Python code?
> Or do we need to ship 3.5.1 already?
The only the thing that comes to mind is using ctypes based on the CRT's
implementation of errno:
import ctypes
import errno
import time
ucrtbase = ctypes.CDLL('ucrtbase')
ucrtbase._errno.restype = ctypes.POINTER(ctypes.c_int)
c_errno = ucrtbase._errno().contents
>>> time.strftime('')
''
>>> c_errno.value = errno.EINVAL; time.strftime('')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: Invalid format string
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