import LSTMForecaster fails with TypeError: metaclass conflict

[pankaj3083]

Hello,

While importing LSTMForecaster, I received the following error:

from zoo.zouwu.model.forecast.lstm_forecaster import LSTMForecaster

---

TypeError Traceback (most recent call last)

in () ----> 1 from zoo.zouwu.model.forecast.lstm_forecaster import LSTMForecaster 1 frames /usr/local/lib/python3.6/dist-packages/zoo/zouwu/model/forecast/tfpark_forecaster.py in () 21 22 ---> 23 class TFParkForecaster(TFParkKerasModel, Forecaster, metaclass=ABCMeta): 24 """ 25 Base class for TFPark KerasModel based Forecast models. TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases I executed following commands and all ran successfully except import LSTMForecaster: import zoo from zoo.common.nncontext import * from zoo.pipeline.api.keras.models import * from zoo.pipeline.api.keras.layers import * # Get the current Analytics Zoo version zoo.__version__ # Create a SparkContext and initialize the BigDL engine. sc = init_nncontext() # Create a Sequential model containing a Dense layer. model = Sequential() model.add(Dense(8, input_shape=(10, ))) from zoo.zouwu.model.forecast.lstm_forecaster import LSTMForecaster Is this a bug with this specific version of Zoo or some other config issue? Can you please help with this ASAP? Thanks

[pankaj3083]

This attachment shows the steps executed and the failure at the last step of import LSTMForecaster.

Thanks

[shanyu-sys]

could you attach the result for pip list?

[pankaj3083]

Please find below the result of pip list:

Package Version

---

absl-py 0.10.0
alabaster 0.7.12
albumentations 0.1.12
altair 4.1.0
analytics-zoo 0.9.0
argon2-cffi 20.1.0
asgiref 3.3.1
astor 0.8.1
astropy 4.1
astunparse 1.6.3
async-generator 1.10
atari-py 0.2.6
atomicwrites 1.4.0
attrs 20.3.0
audioread 2.1.9
autograd 1.3
Babel 2.9.0
backcall 0.2.0
beautifulsoup4 4.6.3
BigDL 0.12.1
bleach 3.2.1
blis 0.4.1
bokeh 2.1.1
Bottleneck 1.3.2
branca 0.4.2
bs4 0.0.1
CacheControl 0.12.6
cachetools 4.2.0
catalogue 1.0.0
certifi 2020.12.5
cffi 1.14.4
chainer 7.4.0
chardet 3.0.4
click 7.1.2
cloudpickle 1.3.0
cmake 3.12.0
cmdstanpy 0.9.5
colorlover 0.3.0
community 1.0.0b1
conda-pack 0.3.1
contextlib2 0.5.5
convertdate 2.2.0
coverage 3.7.1
coveralls 0.5
crcmod 1.7
cufflinks 0.17.3
cvxopt 1.2.5
cvxpy 1.0.31
cycler 0.10.0
cymem 2.0.5
Cython 0.29.21
daft 0.0.4
dask 2.12.0
dataclasses 0.8
datascience 0.10.6
debugpy 1.0.0
decorator 4.4.2
defusedxml 0.6.0
descartes 1.1.0
dill 0.3.3
distributed 1.25.3
Django 3.1.5
dlib 19.18.0
dm-tree 0.1.5
docopt 0.6.2
docutils 0.16
dopamine-rl 1.0.5
earthengine-api 0.1.238
easydict 1.9
ecos 2.0.7.post1
editdistance 0.5.3
en-core-web-sm 2.2.5
entrypoints 0.3
ephem 3.7.7.1
et-xmlfile 1.0.1
fa2 0.3.5
fancyimpute 0.4.3
fastai 1.0.61
fastdtw 0.3.4
fastprogress 1.0.0
fastrlock 0.5
fbprophet 0.7.1
feather-format 0.4.1
filelock 3.0.12
firebase-admin 4.4.0
fix-yahoo-finance 0.0.22
Flask 1.1.2
flatbuffers 1.12
folium 0.8.3
future 0.16.0
gast 0.3.3
GDAL 2.2.2
gdown 3.6.4
gensim 3.6.0
geographiclib 1.50
geopy 1.17.0
gin-config 0.4.0
glob2 0.7
google 2.0.3
google-api-core 1.16.0
google-api-python-client 1.7.12
google-auth 1.17.2
google-auth-httplib2 0.0.4
google-auth-oauthlib 0.4.2
google-cloud-bigquery 1.21.0
google-cloud-bigquery-storage 1.1.0
google-cloud-core 1.0.3
google-cloud-datastore 1.8.0
google-cloud-firestore 1.7.0
google-cloud-language 1.2.0
google-cloud-storage 1.18.1
google-cloud-translate 1.5.0
google-colab 1.0.0
google-pasta 0.2.0
google-resumable-media 0.4.1
googleapis-common-protos 1.52.0
googledrivedownloader 0.4
graphviz 0.10.1
grpcio 1.32.0
gspread 3.0.1
gspread-dataframe 3.0.8
gym 0.17.3
h5py 2.10.0
HeapDict 1.0.1
holidays 0.10.4
holoviews 1.13.5
html5lib 1.0.1
httpimport 0.5.18
httplib2 0.17.4
httplib2shim 0.0.3
humanize 0.5.1
hyperopt 0.1.2
ideep4py 2.0.0.post3
idna 2.10
image 1.5.33
imageio 2.4.1
imagesize 1.2.0
imbalanced-learn 0.4.3
imblearn 0.0
imgaug 0.2.9
importlib-metadata 3.3.0
importlib-resources 4.1.1
imutils 0.5.3
inflect 2.1.0
iniconfig 1.1.1
intel-openmp 2021.1.2
intervaltree 2.1.0
ipykernel 4.10.1
ipython 5.5.0
ipython-genutils 0.2.0
ipython-sql 0.3.9
ipywidgets 7.6.3
itsdangerous 1.1.0
jax 0.2.7
jaxlib 0.1.57+cuda101 jdcal 1.4.1
jedi 0.17.2
jieba 0.42.1
Jinja2 2.11.2
joblib 1.0.0
jpeg4py 0.1.4
jsonschema 2.6.0
jupyter 1.0.0
jupyter-client 5.3.5
jupyter-console 5.2.0
jupyter-core 4.7.0
jupyterlab-pygments 0.1.2
jupyterlab-widgets 1.0.0
kaggle 1.5.10
kapre 0.1.3.1
Keras 2.4.3
Keras-Preprocessing 1.1.2
keras-vis 0.4.1
kiwisolver 1.3.1
knnimpute 0.1.0
korean-lunar-calendar 0.2.1
librosa 0.6.3
lightgbm 2.2.3
llvmlite 0.31.0
lmdb 0.99
lucid 0.3.8
LunarCalendar 0.0.9
lxml 4.2.6
Markdown 3.3.3
MarkupSafe 1.1.1
matplotlib 3.2.2
matplotlib-venn 0.11.6
missingno 0.4.2
mistune 0.8.4
mizani 0.6.0
mkl 2019.0
mlxtend 0.14.0
more-itertools 8.6.0
moviepy 0.2.3.5
mpmath 1.1.0
msgpack 1.0.2
multiprocess 0.70.11.1
multitasking 0.0.9
murmurhash 1.0.5
music21 5.5.0
natsort 5.5.0
nbclient 0.5.1
nbconvert 5.6.1
nbformat 5.0.8
nest-asyncio 1.4.3
networkx 2.5
nibabel 3.0.2
nltk 3.2.5
notebook 5.3.1
np-utils 0.5.12.1
numba 0.48.0
numexpr 2.7.2
numpy 1.19.5
nvidia-ml-py3 7.352.0
oauth2client 4.1.3
oauthlib 3.1.0
okgrade 0.4.3
opencv-contrib-python 4.1.2.30
opencv-python 4.1.2.30
openpyxl 2.5.9
opt-einsum 3.3.0
osqp 0.6.2
packaging 20.8
palettable 3.3.0
pandas 1.1.5
pandas-datareader 0.9.0
pandas-gbq 0.13.3
pandas-profiling 1.4.1
pandocfilters 1.4.3
panel 0.9.7
param 1.10.1
parso 0.7.1
pathlib 1.0.1
patsy 0.5.1
pexpect 4.8.0
pickleshare 0.7.5
Pillow 7.0.0
pip 19.3.1
pip-tools 4.5.1
plac 1.1.3
plotly 4.4.1
plotnine 0.6.0
pluggy 0.7.1
portpicker 1.3.1
prefetch-generator 1.0.1
preshed 3.0.5
prettytable 2.0.0
progressbar2 3.38.0
prometheus-client 0.9.0
promise 2.3
prompt-toolkit 1.0.18
protobuf 3.12.4
psutil 5.4.8
psycopg2 2.7.6.1
ptyprocess 0.7.0
py 1.10.0
py4j 0.10.7
pyarrow 0.14.1
pyasn1 0.4.8
pyasn1-modules 0.2.8
pycocotools 2.0.2
pycparser 2.20
pyct 0.4.8
pydata-google-auth 1.1.0
pydot 1.3.0
pydot-ng 2.0.0
pydotplus 2.0.2
PyDrive 1.3.1
pyemd 0.5.1
pyglet 1.5.0
Pygments 2.6.1
pygobject 3.26.1
pymc3 3.7
PyMeeus 0.3.7
pymongo 3.11.2
pymystem3 0.2.0
PyOpenGL 3.1.5
pyparsing 2.4.7
pyrsistent 0.17.3
pysndfile 1.3.8
PySocks 1.7.1
pyspark 2.4.3
pystan 2.19.1.1
pytest 3.6.4
python-apt 1.6.5+ubuntu0.5 python-chess 0.23.11
python-dateutil 2.8.1
python-louvain 0.15
python-slugify 4.0.1
python-utils 2.4.0
pytz 2018.9
pyviz-comms 2.0.1
PyWavelets 1.1.1
PyYAML 3.13
pyzmq 20.0.0
qdldl 0.1.5.post0
qtconsole 5.0.1
QtPy 1.9.0
regex 2019.12.20
requests 2.23.0
requests-oauthlib 1.3.0
resampy 0.2.2
retrying 1.3.3
rpy2 3.2.7
rsa 4.6
scikit-image 0.16.2
scikit-learn 0.22.2.post1
scipy 1.4.1
screen-resolution-extra 0.0.0
scs 2.1.2
seaborn 0.11.1
Send2Trash 1.5.0
setuptools 51.1.1
setuptools-git 1.2
Shapely 1.7.1
simplegeneric 0.8.1
six 1.15.0
sklearn 0.0
sklearn-pandas 1.8.0
smart-open 4.1.0
snowballstemmer 2.0.0
sortedcontainers 2.3.0
spacy 2.2.4
Sphinx 1.8.5
sphinxcontrib-serializinghtml 1.1.4
sphinxcontrib-websupport 1.2.4
SQLAlchemy 1.3.22
sqlparse 0.4.1
srsly 1.0.5
statsmodels 0.10.2
sympy 1.1.1
tables 3.4.4
tabulate 0.8.7
tblib 1.7.0
tensorboard 2.4.0
tensorboard-plugin-wit 1.7.0
tensorboardcolab 0.0.22
tensorflow 2.4.0
tensorflow-addons 0.8.3
tensorflow-datasets 4.0.1
tensorflow-estimator 2.4.0
tensorflow-gcs-config 2.4.0
tensorflow-hub 0.11.0
tensorflow-metadata 0.26.0
tensorflow-privacy 0.2.2
tensorflow-probability 0.12.1
termcolor 1.1.0
terminado 0.9.2
testpath 0.4.4
text-unidecode 1.3
textblob 0.15.3
textgenrnn 1.4.1
Theano 1.0.5
thinc 7.4.0
tifffile 2020.9.3
toml 0.10.2
toolz 0.11.1
torch 1.7.0+cu101
torchsummary 1.5.1
torchtext 0.3.1
torchvision 0.8.1+cu101
tornado 5.1.1
tqdm 4.41.1
traitlets 4.3.3
tweepy 3.6.0
typeguard 2.7.1
typing-extensions 3.7.4.3
tzlocal 1.5.1
umap-learn 0.4.6
uritemplate 3.0.1
urllib3 1.24.3
vega-datasets 0.9.0
wasabi 0.8.0
wcwidth 0.2.5
webencodings 0.5.1
Werkzeug 1.0.1
wheel 0.36.2
widgetsnbextension 3.5.1
wordcloud 1.5.0
wrapt 1.12.1
xarray 0.15.1
xgboost 0.90
xkit 0.0.0
xlrd 1.1.0
xlwt 1.3.0
yellowbrick 0.9.1
zict 2.0.0
zipp 3.4.0

Thanks

[pankaj3083]

It seems I am using tensorflow 2.4 version whereas this zoo supports tensorflow 1.15 version as per "https://analytics-zoo.github.io/master/#PythonUserGuide/python-lib-version/".

Could that be issue?

Thanks

[shanyu-sys]

Could you try install zoo in a clean conda environment? It might be caused by some package version conflicts, but it is hard to locate with an environment including that many packages. And tensorflow version may be not related to this issue.

I can't reproduce the error in my environment with the same imports.

[helenlly]

@pankaj3083 any update on the issue?

[helenlly]

close due to no response for a long time.