Import abstract base classes from collections.abc#867
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davidism merged 1 commit intopallets:masterfrom Aug 7, 2018
The-Compiler:collections
Merged
Import abstract base classes from collections.abc#867davidism merged 1 commit intopallets:masterfrom The-Compiler:collections
davidism merged 1 commit intopallets:masterfrom
The-Compiler:collections
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The-Compiler
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Jun 27, 2018
| from collections import Mapping | ||
| Mapping.register(Context) | ||
| except ImportError: | ||
| pass |
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| MutableMapping.register(LRUCache) | ||
| except ImportError: | ||
| pass | ||
| abc.MutableMapping.register(LRUCache) |
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The Travis failure is unrelated, it happens because Python 3.3 got dropped in |
The-Compiler
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Jun 27, 2018
In Python 3.7, importing ABCs directly from the `collections` module shows a warning (and in Python 3.8 it will stop working) - see python/cpython@c66f9f8 This fixes various DeprecationWarnings such as those: ``` .../jinja2/utils.py:485: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import MutableMapping .../jinja2/runtime.py:318: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import Mapping ```
|
Looking at the changelog: this fix doesn't seem to be released yet, right? |
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In Python 3.7, importing ABCs directly from the
collectionsmodule shows awarning (and in Python 3.8 it will stop working) - see
python/cpython@c66f9f8
This fixes various DeprecationWarnings such as those: