spark-instrumented-optimizer/python/pyspark/resultiterable.py
Karthikeyan Singaravelan aec1d95f3b [SPARK-30205][PYSPARK] Import ABCs from collections.abc to remove deprecation warnings
### What changes were proposed in this pull request?

This PR aims to remove deprecation warnings by importing ABCs from `collections.abc` instead of `collections`.
- https://github.com/python/cpython/pull/10596

### Why are the changes needed?

This will remove deprecation warnings in Python 3.7 and 3.8.

```
$ python -V
Python 3.7.5

$ python python/pyspark/resultiterable.py
python/pyspark/resultiterable.py:23: DeprecationWarning:
Using or importing the ABCs from 'collections' instead of from 'collections.abc'
is deprecated since Python 3.3,and in 3.9 it will stop working
  class ResultIterable(collections.Iterable):
```

### Does this PR introduce any user-facing change?

No, this doesn't introduce user-facing change

### How was this patch tested?

Manually because this is about deprecation warning messages.

Closes #26835 from tirkarthi/spark-30205-fix-abc-warnings.

Authored-by: Karthikeyan Singaravelan <tir.karthi@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-12-10 11:08:13 -08:00

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1.3 KiB
Python

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
try:
from collections.abc import Iterable
except ImportError:
from collections import Iterable
__all__ = ["ResultIterable"]
class ResultIterable(Iterable):
"""
A special result iterable. This is used because the standard
iterator can not be pickled
"""
def __init__(self, data):
self.data = data
self.index = 0
self.maxindex = len(data)
def __iter__(self):
return iter(self.data)
def __len__(self):
return len(self.data)