Amaury Forgeot d'Arc added the comment:
The example script has two errors IMO:
- XOpenDisplay accepts a char*, but display_url is certainly a unicode string;
it should be converted to a bytes string::
xlib.XOpenDisplay(display_url.encode('utf-8'))
- XOpenDisplay.restype is not set, so it will be coerced to a C int (and
truncated in the case of a 64bit pointer)
I strongly suggest to set .argtypes and .restype, to ensure proper type check
and conversion.
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<http://bugs.python.org/issue15637>
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