Commit graph

3 commits

Author SHA1 Message Date
Tomas Pereira de Vasconcelos e8991266c8 [SPARK-35986][PYSPARK] Fix type hint for RDD.histogram's buckets
Fix the type hint for `pyspark.rdd .RDD.histogram`'s `buckets` argument

The current type hint is incomplete.
![image](https://user-images.githubusercontent.com/17701527/124248180-df7fd580-db22-11eb-8391-ba0bb51d689b.png)
From `pyspark.rdd .RDD.histogram`'s source:
```python
if isinstance(buckets, int):
    ...
elif isinstance(buckets, (list, tuple)):
    ...
else:
    raise TypeError("buckets should be a list or tuple or number(int or long)")
```

Fixed the warning displayed above.

Fixed warning above with this change.

Closes #33185 from tpvasconcelos/master.

Authored-by: Tomas Pereira de Vasconcelos <tomasvasconcelos1@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 495d234c6e)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
2021-07-04 10:24:55 +09:00
zero323 665817bd4f [SPARK-33457][PYTHON] Adjust mypy configuration
### What changes were proposed in this pull request?

This pull request:

- Adds following flags to the main mypy configuration:
  - [`strict_optional`](https://mypy.readthedocs.io/en/stable/config_file.html#confval-strict_optional)
  - [`no_implicit_optional`](https://mypy.readthedocs.io/en/stable/config_file.html#confval-no_implicit_optional)
  - [`disallow_untyped_defs`](https://mypy.readthedocs.io/en/stable/config_file.html#confval-disallow_untyped_calls)

These flags are enabled only for public API and disabled for tests and internal modules.

Additionally, these PR fixes missing annotations.

### Why are the changes needed?

Primary reason to propose this changes is to use standard configuration as used by typeshed project. This will allow us to be more strict, especially when interacting with JVM code. See for example https://github.com/apache/spark/pull/29122#pullrequestreview-513112882

Additionally, it will allow us to detect cases where annotations have unintentionally omitted.

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

Annotations only.

### How was this patch tested?

`dev/lint-python`.

Closes #30382 from zero323/SPARK-33457.

Authored-by: zero323 <mszymkiewicz@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-11-25 09:27:04 +09:00
zero323 31a16fbb40 [SPARK-32714][PYTHON] Initial pyspark-stubs port
### What changes were proposed in this pull request?

This PR proposes migration of [`pyspark-stubs`](https://github.com/zero323/pyspark-stubs) into Spark codebase.

### Why are the changes needed?

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

Yes. This PR adds type annotations directly to Spark source.

This can impact interaction with development tools for users, which haven't used `pyspark-stubs`.

### How was this patch tested?

- [x] MyPy tests of the PySpark source
    ```
    mypy --no-incremental --config python/mypy.ini python/pyspark
    ```
- [x] MyPy tests of Spark examples
    ```
   MYPYPATH=python/ mypy --no-incremental --config python/mypy.ini examples/src/main/python/ml examples/src/main/python/sql examples/src/main/python/sql/streaming
    ```
- [x] Existing Flake8 linter

- [x] Existing unit tests

Tested against:

- `mypy==0.790+dev.e959952d9001e9713d329a2f9b196705b028f894`
- `mypy==0.782`

Closes #29591 from zero323/SPARK-32681.

Authored-by: zero323 <mszymkiewicz@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-09-24 14:15:36 +09:00