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avoid failure when docstrings have been stripped (python -OO) #21477

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avoid failure when docstrings have been stripped (python -OO) #21477

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f1671dc
avoid failure when docstrings have been stripped (python -OO)
JohannesBuchner Jul 14, 2025
865062f
fix string formatting issue
JohannesBuchner Jul 16, 2025
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6 changes: 3 additions & 3 deletions keras/src/applications/densenet.py
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Original file line number Diff line number Diff line change
Expand Up @@ -487,6 +487,6 @@ def decode_predictions(preds, top=5):
A Keras model instance.
"""

setattr(DenseNet121, "__doc__", DenseNet121.__doc__ + DOC)
setattr(DenseNet169, "__doc__", DenseNet169.__doc__ + DOC)
setattr(DenseNet201, "__doc__", DenseNet201.__doc__ + DOC)
setattr(DenseNet121, "__doc__", (DenseNet121.__doc__ or "") + DOC)
setattr(DenseNet169, "__doc__", (DenseNet169.__doc__ or "") + DOC)
setattr(DenseNet201, "__doc__", (DenseNet201.__doc__ or "") + DOC)
7 changes: 4 additions & 3 deletions keras/src/applications/resnet.py
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Expand Up @@ -586,6 +586,7 @@ def decode_predictions(preds, top=5):
A Model instance.
"""

setattr(ResNet50, "__doc__", ResNet50.__doc__ + DOC)
setattr(ResNet101, "__doc__", ResNet101.__doc__ + DOC)
setattr(ResNet152, "__doc__", ResNet152.__doc__ + DOC)
if ResNet50.__doc__ is not None:
setattr(ResNet50, "__doc__", ResNet50.__doc__ + DOC)
setattr(ResNet101, "__doc__", ResNet101.__doc__ + DOC)
setattr(ResNet152, "__doc__", ResNet152.__doc__ + DOC)
Comment on lines +589 to +592
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medium

The current check if ResNet50.__doc__ is not None: assumes that if ResNet50 has a docstring, then ResNet101 and ResNet152 will as well. While this might be true now, it's better to check each model's docstring individually for robustness and to avoid potential issues if new model variants are added without docstrings in the future.

Suggested change
if ResNet50.__doc__ is not None:
setattr(ResNet50, "__doc__", ResNet50.__doc__ + DOC)
setattr(ResNet101, "__doc__", ResNet101.__doc__ + DOC)
setattr(ResNet152, "__doc__", ResNet152.__doc__ + DOC)
models = [ResNet50, ResNet101, ResNet152]
for model in models:
if model.__doc__ is not None:
setattr(model, "__doc__", model.__doc__ + DOC)

Comment on lines +589 to +592
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medium

Adding a conditional check ensures that the docstring replacement only occurs if the ResNet50.__doc__ attribute is not None. This prevents potential errors when docstrings are stripped.

Suggested change
if ResNet50.__doc__ is not None:
setattr(ResNet50, "__doc__", ResNet50.__doc__ + DOC)
setattr(ResNet101, "__doc__", ResNet101.__doc__ + DOC)
setattr(ResNet152, "__doc__", ResNet152.__doc__ + DOC)
if ResNet50.__doc__ is not None:
setattr(ResNet50, "__doc__", ResNet50.__doc__ + DOC)
setattr(ResNet101, "__doc__", ResNet101.__doc__ + DOC)
setattr(ResNet152, "__doc__", ResNet152.__doc__ + DOC)

7 changes: 4 additions & 3 deletions keras/src/applications/resnet_v2.py
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Original file line number Diff line number Diff line change
Expand Up @@ -203,6 +203,7 @@ def decode_predictions(preds, top=5):
A Model instance.
"""

setattr(ResNet50V2, "__doc__", ResNet50V2.__doc__ + DOC)
setattr(ResNet101V2, "__doc__", ResNet101V2.__doc__ + DOC)
setattr(ResNet152V2, "__doc__", ResNet152V2.__doc__ + DOC)
if ResNet50V2.__doc__ is not None:
setattr(ResNet50V2, "__doc__", ResNet50V2.__doc__ + DOC)
setattr(ResNet101V2, "__doc__", ResNet101V2.__doc__ + DOC)
setattr(ResNet152V2, "__doc__", ResNet152V2.__doc__ + DOC)
Comment on lines +206 to +209
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medium

Similar to resnet.py, the check if ResNet50V2.__doc__ is not None: assumes that if ResNet50V2 has a docstring, then ResNet101V2 and ResNet152V2 will too. To make the code more robust and easier to maintain, it's better to check each model's docstring individually.

Suggested change
if ResNet50V2.__doc__ is not None:
setattr(ResNet50V2, "__doc__", ResNet50V2.__doc__ + DOC)
setattr(ResNet101V2, "__doc__", ResNet101V2.__doc__ + DOC)
setattr(ResNet152V2, "__doc__", ResNet152V2.__doc__ + DOC)
models = [ResNet50V2, ResNet101V2, ResNet152V2]
for model in models:
if model.__doc__ is not None:
setattr(model, "__doc__", model.__doc__ + DOC)

Comment on lines +206 to +209
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medium

Adding a conditional check ensures that the docstring replacement only occurs if the ResNet50V2.__doc__ attribute is not None. This prevents potential errors when docstrings are stripped.

Suggested change
if ResNet50V2.__doc__ is not None:
setattr(ResNet50V2, "__doc__", ResNet50V2.__doc__ + DOC)
setattr(ResNet101V2, "__doc__", ResNet101V2.__doc__ + DOC)
setattr(ResNet152V2, "__doc__", ResNet152V2.__doc__ + DOC)
if ResNet50V2.__doc__ is not None:
setattr(ResNet50V2, "__doc__", ResNet50V2.__doc__ + DOC)
setattr(ResNet101V2, "__doc__", ResNet101V2.__doc__ + DOC)
setattr(ResNet152V2, "__doc__", ResNet152V2.__doc__ + DOC)

7 changes: 4 additions & 3 deletions keras/src/optimizers/adadelta.py
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Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,7 @@ def get_config(self):
return config


Adadelta.__doc__ = Adadelta.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Adadelta.__doc__ is not None:
Adadelta.__doc__ = Adadelta.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/adafactor.py
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Expand Up @@ -209,6 +209,7 @@ def get_config(self):
return config


Adafactor.__doc__ = Adafactor.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Adafactor.__doc__ is not None:
Adafactor.__doc__ = Adafactor.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/adagrad.py
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Expand Up @@ -103,6 +103,7 @@ def get_config(self):
return config


Adagrad.__doc__ = Adagrad.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Adagrad.__doc__ is not None:
Adagrad.__doc__ = Adagrad.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/adam.py
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Expand Up @@ -149,6 +149,7 @@ def get_config(self):
return config


Adam.__doc__ = Adam.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Adam.__doc__ is not None:
Adam.__doc__ = Adam.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/adamax.py
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Expand Up @@ -141,6 +141,7 @@ def get_config(self):
return config


Adamax.__doc__ = Adamax.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Adamax.__doc__ is not None:
Adamax.__doc__ = Adamax.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/adamw.py
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Expand Up @@ -95,6 +95,7 @@ def __init__(
)


AdamW.__doc__ = AdamW.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if AdamW.__doc__ is not None:
AdamW.__doc__ = AdamW.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/ftrl.py
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Expand Up @@ -234,6 +234,7 @@ def get_config(self):
return config


Ftrl.__doc__ = Ftrl.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Ftrl.__doc__ is not None:
Ftrl.__doc__ = Ftrl.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/lamb.py
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Expand Up @@ -143,6 +143,7 @@ def get_config(self):
return config


Lamb.__doc__ = Lamb.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Lamb.__doc__ is not None:
Lamb.__doc__ = Lamb.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/lion.py
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Expand Up @@ -131,6 +131,7 @@ def get_config(self):
return config


Lion.__doc__ = Lion.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Lion.__doc__ is not None:
Lion.__doc__ = Lion.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/loss_scale_optimizer.py
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Expand Up @@ -307,6 +307,7 @@ def from_config(cls, config, custom_objects=None):
return cls(inner_optimizer, **config)


LossScaleOptimizer.__doc__ = LossScaleOptimizer.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if LossScaleOptimizer.__doc__ is not None:
LossScaleOptimizer.__doc__ = LossScaleOptimizer.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/nadam.py
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Expand Up @@ -158,6 +158,7 @@ def get_config(self):
return config


Nadam.__doc__ = Nadam.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if Nadam.__doc__ is not None:
Nadam.__doc__ = Nadam.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/rmsprop.py
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Expand Up @@ -167,6 +167,7 @@ def get_config(self):
return config


RMSprop.__doc__ = RMSprop.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if RMSprop.__doc__ is not None:
RMSprop.__doc__ = RMSprop.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
7 changes: 4 additions & 3 deletions keras/src/optimizers/sgd.py
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Expand Up @@ -133,6 +133,7 @@ def get_config(self):
return config


SGD.__doc__ = SGD.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
if SGD.__doc__ is not None:
SGD.__doc__ = SGD.__doc__.replace(
"{{base_optimizer_keyword_args}}", optimizer.base_optimizer_keyword_args
)
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