Mickaël Schoentgen 8374a9ed83 Review OSError exceptions handling (#1080) ...

- Replace obsolete `IOError` (Python 2) with `OSError`,
  cf https://docs.python.org/3/library/exceptions.html#OSError.
- Improve `OSError` catches at different places, simplifying
  the code.

2021-05-31 10:10:41 +02:00

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