Implement angle function in keras.ops

[shashaka]

Adds keras.ops.angle to compute the element-wise angle of complex numbers. Supported across NumPy, TensorFlow, PyTorch, and JAX backends, except for OpenVINO.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 89.13043% with 5 lines in your changes missing coverage. Please review.

Project coverage is 82.60%. Comparing base (29a95e8) to head (e1d4a70).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
keras/src/backend/torch/numpy.py	57.14%	2 Missing and 1 partial ⚠️
keras/api/_tf_keras/keras/ops/__init__.py	0.00%	1 Missing ⚠️
keras/api/_tf_keras/keras/ops/numpy/__init__.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21200      +/-   ##
==========================================
+ Coverage   82.59%   82.60%   +0.01%     
==========================================
  Files         564      564              
  Lines       54367    54440      +73     
  Branches     8452     8465      +13     
==========================================
+ Hits        44902    44970      +68     
- Misses       7391     7395       +4     
- Partials     2074     2075       +1     

Flag	Coverage Δ
keras	82.41% <89.13%> (+0.01%)	⬆️
keras-jax	63.73% <54.34%> (-0.04%)	⬇️
keras-numpy	58.85% <56.52%> (-0.04%)	⬇️
keras-openvino	32.93% <19.56%> (+0.03%)	⬆️
keras-tensorflow	64.14% <54.34%> (-0.05%)	⬇️
keras-torch	63.81% <47.82%> (-0.05%)	⬇️

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[fchollet]

Nice, thank you for the contribution!

[fchollet]

This branch has conflicts that must be resolved

We updated API generation, please resolve the conflict.

[shashaka]

@fchollet

When running pre-commit locally, I encountered the following error.
It seems there may be a conflict between the api_gen and ruff steps.
Additionally, I’m unable to manually edit the init.py files.
At this point, I’m not sure how to resolve the issue.

$ pre-commit run --all-files --hook-stage manual

api_gen..................................................................Passed
ruff.....................................................................Failed
- hook id: ruff
- exit code: 1

keras/api/_tf_keras/keras/__init__.py:36:35: F811 Redefinition of unused `backend` from line 10
   |
34 | from keras import visualization
35 | from keras import wrappers
36 | from keras._tf_keras.keras import backend
   |                                   ^^^^^^^ F811
37 | from keras._tf_keras.keras import layers
38 | from keras._tf_keras.keras import losses
   |
   = help: Remove definition: `backend`

keras/api/_tf_keras/keras/__init__.py:36:35: F811 Redefinition of unused `backend` from line 10
   |
34 | from keras import visualization
35 | from keras import wrappers
36 | from keras._tf_keras.keras import backend
   |                                   ^^^^^^^ F811
37 | from keras._tf_keras.keras import layers
38 | from keras._tf_keras.keras import losses
   |
   = help: Remove definition: `backend`

keras/api/_tf_keras/keras/__init__.py:37:35: F811 Redefinition of unused `layers` from line 19
   |
35 | from keras import wrappers
36 | from keras._tf_keras.keras import backend
37 | from keras._tf_keras.keras import layers
   |                                   ^^^^^^ F811
38 | from keras._tf_keras.keras import losses
39 | from keras._tf_keras.keras import metrics
   |
   = help: Remove definition: `layers`

keras/api/_tf_keras/keras/__init__.py:37:35: F811 Redefinition of unused `layers` from line 19
   |
35 | from keras import wrappers
36 | from keras._tf_keras.keras import backend
37 | from keras._tf_keras.keras import layers
   |                                   ^^^^^^ F811
38 | from keras._tf_keras.keras import losses
39 | from keras._tf_keras.keras import metrics
   |
   = help: Remove definition: `layers`

keras/api/_tf_keras/keras/__init__.py:38:35: F811 Redefinition of unused `losses` from line 21
   |
36 | from keras._tf_keras.keras import backend
37 | from keras._tf_keras.keras import layers
38 | from keras._tf_keras.keras import losses
   |                                   ^^^^^^ F811
39 | from keras._tf_keras.keras import metrics
40 | from keras._tf_keras.keras import preprocessing
   |
   = help: Remove definition: `losses`

keras/api/_tf_keras/keras/__init__.py:38:35: F811 Redefinition of unused `losses` from line 21
   |
36 | from keras._tf_keras.keras import backend
37 | from keras._tf_keras.keras import layers
38 | from keras._tf_keras.keras import losses
   |                                   ^^^^^^ F811
39 | from keras._tf_keras.keras import metrics
40 | from keras._tf_keras.keras import preprocessing
   |
   = help: Remove definition: `losses`

keras/api/_tf_keras/keras/__init__.py:39:35: F811 Redefinition of unused `metrics` from line 22
   |
37 | from keras._tf_keras.keras import layers
38 | from keras._tf_keras.keras import losses
39 | from keras._tf_keras.keras import metrics
   |                                   ^^^^^^^ F811
40 | from keras._tf_keras.keras import preprocessing
41 | from keras.src.backend import Variable
   |
   = help: Remove definition: `metrics`

keras/api/_tf_keras/keras/__init__.py:39:35: F811 Redefinition of unused `metrics` from line 22
   |
37 | from keras._tf_keras.keras import layers
38 | from keras._tf_keras.keras import losses
39 | from keras._tf_keras.keras import metrics
   |                                   ^^^^^^^ F811
40 | from keras._tf_keras.keras import preprocessing
41 | from keras.src.backend import Variable
   |
   = help: Remove definition: `metrics`

keras/api/_tf_keras/keras/__init__.py:40:35: F811 Redefinition of unused `preprocessing` from line 27
   |
38 | from keras._tf_keras.keras import losses
39 | from keras._tf_keras.keras import metrics
40 | from keras._tf_keras.keras import preprocessing
   |                                   ^^^^^^^^^^^^^ F811
41 | from keras.src.backend import Variable
42 | from keras.src.backend import device
   |
   = help: Remove definition: `preprocessing`

keras/api/_tf_keras/keras/__init__.py:40:35: F811 Redefinition of unused `preprocessing` from line 27
   |
38 | from keras._tf_keras.keras import losses
39 | from keras._tf_keras.keras import metrics
40 | from keras._tf_keras.keras import preprocessing
   |                                   ^^^^^^^^^^^^^ F811
41 | from keras.src.backend import Variable
42 | from keras.src.backend import device
   |
   = help: Remove definition: `preprocessing`

keras/api/_tf_keras/keras/layers/__init__.py:269:37: F811 Redefinition of unused `AlphaDropout` from line 236
    |
267 | from keras.src.layers.rnn.stacked_rnn_cells import StackedRNNCells
268 | from keras.src.layers.rnn.time_distributed import TimeDistributed
269 | from keras.src.legacy.layers import AlphaDropout
    |                                     ^^^^^^^^^^^^ F811
270 | from keras.src.legacy.layers import RandomHeight
271 | from keras.src.legacy.layers import RandomWidth
    |
    = help: Remove definition: `AlphaDropout`

keras/api/_tf_keras/keras/layers/__init__.py:269:37: F811 Redefinition of unused `AlphaDropout` from line 236
    |
267 | from keras.src.layers.rnn.stacked_rnn_cells import StackedRNNCells
268 | from keras.src.layers.rnn.time_distributed import TimeDistributed
269 | from keras.src.legacy.layers import AlphaDropout
    |                                     ^^^^^^^^^^^^ F811
270 | from keras.src.legacy.layers import RandomHeight
271 | from keras.src.legacy.layers import RandomWidth
    |
    = help: Remove definition: `AlphaDropout`

Found 12 errors.

ruff-format..............................................................Passed

[shashaka]

After running the following code block, I confirmed that pre-commit is working properly on my local environment:

pip install -r requirements.txt --progress-bar off --upgrade
pip uninstall -y keras keras-nightly
pip install -e "." --progress-bar off --upgrade