Fix #6256 : migrate to python 3.7+ #6260
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* Update classifiers
* Update python_requires
* Fix deprecated code (some from python 2.x):
- `io.open` -> `open`
- `IOError` -> `OSError` (in python 3 `IOError` is alias)
- `socket.error` -> `OSError`
- `u''` -> `''`
- `str().format` -> f-strings
(where it was quick automatically validated change)
- `object` is not needed as base class
- use `set` comprehensions
- `sum` over generators (do not produce temporary lists)
- use plain `super()`
* remove unused imports
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@penguinolog - thank you for taking the time to make these changes. There were still a few f-string conversions that we might as well get in if you don't mind.
@blink1073 - are these changes (drop of 3.6, add of 3.10) be something we could deliver in a 6.5 release?
| @@ -146,7 +143,7 @@ def _copy(self, copy_from, copy_to=None): | |||
| @gen.coroutine | |||
| def _upload(self, model, path): | |||
| """Handle upload of a new file to path""" | |||
| self.log.info(u"Uploading file to %s", path) | |||
| self.log.info("Uploading file to %s", path) | |||
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f-string? (others below as well)
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logging call without f-string is a bit more native (lazy logging formatting) and pylint will complain (BTW personally I prefer f-strings)
leave lazy logging format
Makes sense to me |
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@kevin-bates @blink1073 can this PR go forward? |
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Hi @penguinolog - yes, I'd like to move this forward but was hoping to get #6213 merged prior to avoid merge conflicts (although there's only a single file overlap in that PR). I've pinged the other PR so I'm hoping we get some traction there. Thank you for your patience. |
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@kevin-bates looks like #6213 stuck with lack of frontenders :( |
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@kevin-bates can this PR go before frontend part? Project is moving forward and migration is stuck |
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@echarles since you're actively working on the 6.4.x, do you have an order preference? |
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As the frontend releated changes will occur in the @kevin-bates @blink1073 Have you already looked at the changes, in which case I let you go forward. If not, I am happy to review. |
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Kevin already reviewed, so proceeding. Thanks @penguinolog! |
io.open->openIOError->OSError(in python 3IOErroris alias)socket.error->OSErroru''->''str().format-> f-strings(where it was quick automatically validated change)
objectis not needed as base classsetcomprehensionssumover generators (do not produce temporary lists)super()