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Fixbug: Using a tf.Tensor as a Python bool #36

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Fixbug: Using a tf.Tensor as a Python bool #36

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vietanhdev
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I found this bug when using inference code (python video_demo.py).

Environment:

  • Miniconda.
  • Python 3.7.
  • Install requirements from ./docs/requirements.txt.

Error Trace:

Traceback (most recent call last):
  File "video_demo.py", line 28, in <module>
    feature_maps = YOLOv3(input_layer)
  File "/mnt/DATA/TRAINING/TensorFlow2.0-Examples/4-Object_Detection/YOLOV3/core/yolov3.py", line 28, in YOLOv3
    route_1, route_2, conv = backbone.darknet53(input_layer)
  File "/mnt/DATA/TRAINING/TensorFlow2.0-Examples/4-Object_Detection/YOLOV3/core/backbone.py", line 20, in darknet53
    input_data = common.convolutional(input_data, (3, 3,  3,  32))
  File "/mnt/DATA/TRAINING/TensorFlow2.0-Examples/4-Object_Detection/YOLOV3/core/common.py", line 43, in convolutional
    if bn: conv = BatchNormalization()(conv)
  File "/home/ironman/miniconda3/envs/tf2/lib/python3.7/site-packages/tensorflow/python/keras/engine/base_layer.py", line 662, in __call__
    outputs = call_fn(inputs, *args, **kwargs)
  File "/home/ironman/miniconda3/envs/tf2/lib/python3.7/site-packages/tensorflow/python/autograph/impl/api.py", line 169, in wrapper
    raise e.ag_error_metadata.to_exception(type(e))
TypeError: in converted code:

    /mnt/DATA/TRAINING/TensorFlow2.0-Examples/4-Object_Detection/YOLOV3/core/common.py:24 call
        if not training:
    /home/ironman/miniconda3/envs/tf2/lib/python3.7/site-packages/tensorflow/python/framework/ops.py:698 __bool__
        raise TypeError("Using a `tf.Tensor` as a Python `bool` is not allowed. "

    TypeError: Using a `tf.Tensor` as a Python `bool` is not allowed. Use `if t is not None:` instead of `if t:` to test if a tensor is defined, and use TensorFlow ops such as tf.cond to execute subgraphs conditioned on the value of a tensor.

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