Проблема с запуском demo3.py

[antk1n]

При попытке запуска демо user@ubuntu:~/nomeroff-net/examples/py$ python3 demo3.py
возникает вот такая проблема:

2019-10-24 13:20:12.700437: I tensorflow/core/platform/cpu_feature_guard.cc:142] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2
2019-10-24 13:20:12.764445: I tensorflow/core/platform/profile_utils/cpu_utils.cc:94] CPU Frequency: 1992000000 Hz
2019-10-24 13:20:12.764839: I tensorflow/compiler/xla/service/service.cc:168] XLA service 0x1cb2810 executing computations on platform Host. Devices:
2019-10-24 13:20:12.764973: I tensorflow/compiler/xla/service/service.cc:175]   StreamExecutor device (0): <undefined>, <undefined>
Using TensorFlow backend.
Traceback (most recent call last):
  File "demo3.py", line 20, in <module>
    from NomeroffNet import  filters, RectDetector, TextDetector, OptionsDetector, Detector, textPostprocessing, textPostprocessingAsync
  File "/home/user/nomeroff-net/examples/py/../../NomeroffNet/__init__.py", line 2, in <module>
    from .Detector import *
  File "/home/user/nomeroff-net/examples/py/../../NomeroffNet/Detector.py", line 11, in <module>
    import keras
  File "/home/user/.local/lib/python3.6/site-packages/keras/__init__.py", line 3, in <module>
    from . import utils
  File "/home/user/.local/lib/python3.6/site-packages/keras/utils/__init__.py", line 24, in <module>
    from .vis_utils import model_to_dot
  File "/home/user/.local/lib/python3.6/site-packages/keras/utils/vis_utils.py", line 7, in <module>
    from ..models import Model
  File "/home/user/.local/lib/python3.6/site-packages/keras/models.py", line 10, in <module>
    from .engine.input_layer import Input
  File "/home/user/.local/lib/python3.6/site-packages/keras/engine/__init__.py", line 8, in <module>
    from .training import Model
  File "/home/user/.local/lib/python3.6/site-packages/keras/engine/training.py", line 24, in <module>
    from . import training_arrays
  File "/home/user/.local/lib/python3.6/site-packages/keras/engine/training_arrays.py", line 15, in <module>
    from .. import callbacks as cbks
  File "/home/user/.local/lib/python3.6/site-packages/keras/callbacks/__init__.py", line 19, in <module>
    if K.backend() == 'tensorflow' and not K.tensorflow_backend._is_tf_1():
AttributeError: module 'keras.backend.tensorflow_backend' has no attribute '_is_tf_1'

убунту 18.04 LTS
питон 3.6.8
cv2 4.1.1
tf 1.14.0
numpy 1.17.3

[dimabendera]

Возможно проблема с установленным keras
Попробуйте запустить
python3 -c "import keras"
Если ошибка повторится, то переустановите ваш keras
pip3 uninstall keras
pip3 install keras==2.2.5 --upgrade

[antk1n]

спасибо, второй вариант помог