In python code. When you see a negative in front of a Error Flag, what does it mean?
return -errno.EACCES
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In python code. When you see a negative in front of a Error Flag, what does it mean?
return -errno.EACCES
That’s a C style error return. A practice that is popular is to return a meaningful non-negative result of the function on success or a negative error code on failure.
In this case, the error EACCES means that permision was denied.
(See also this question)