New submission from Stanislaw Pitucha:
The docstring on for fileno() method says:
"An IOError is raised if the IO object does not use a file descriptor."
In reality, UnsupportedOperation is raised instead:
```
: io.StringIO().fileno()
UnsupportedOperation: fileno
```
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Stanislaw Pitucha added the comment:
Just in case: yes, UnsupportedOperation is an IOError - but shouldn't docstring
here be more specific?
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Stanislaw Pitucha added the comment:
Confirming this on python 2.7.12 on DragonflyBSD
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nosy: +viraptor
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Python tracker
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