fast-bert ERROR: No matching distribution found for itertools (from fast-bert)

problem : pip install fast-bert

error: ERROR: Could not find a version that satisfies the requirement itertools (from fast-bert) (from versions: none) ERROR: No matching distribution found for itertools (from fast-bert) ubuntu linux Python 3.6.5 installed package: absl-py 0.9.0 alembic 1.4.2 annoy 1.16.3 astor 0.8.1 astropy 4.0.1.post1 attrs 19.3.0 azure-core 1.7.0 azure-storage-blob 12.3.2 backcall 0.2.0 bleach 3.1.5 blis 0.4.1 boto 2.49.0 boto3 1.14.27 botocore 1.17.27 catalogue 1.0.0 catboost 0.23.2 certifi 2020.6.20 cffi 1.14.1 chardet 3.0.4 click 7.1.2 cloudpickle 1.5.0 colorlover 0.3.0 combo 0.1.1 confuse 1.3.0 contextlib2 0.6.0.post1 cryptography 3.0 cufflinks 0.17.3 cycler 0.10.0 cymem 2.0.3 databricks-cli 0.11.0 dataclasses 0.7 datefinder 0.7.1 DateTime 4.3 decorator 4.4.2 deepctr 0.7.5 deepctr-torch 0.2.1 deepmatch 0.1.3 defusedxml 0.6.0 docker 4.2.2 docutils 0.15.2 entrypoints 0.3 faiss 1.6.3 FastNLP 0.5.5 fasttext 0.9.2 filelock 3.0.12 Flask 1.1.2 funcy 1.14 future 0.18.2 gast 0.2.2 gensim 3.8.3 gitdb 4.0.5 GitPython 3.1.7 glove-python 0.1.0 google-pasta 0.2.0 gorilla 0.3.0 graphviz 0.14.1 grpcio 1.31.0 gunicorn 20.0.4 h5py 2.10.0 hnswlib 0.4.0 htmlmin 0.1.12 idna 2.10 ImageHash 4.1.0 imbalanced-learn 0.7.0 importlib-metadata 1.7.0 install 1.3.3 ipykernel 5.3.4 ipython 7.16.1 ipython-genutils 0.2.0 ipywidgets 7.5.1 isodate 0.6.0 itsdangerous 1.1.0 jedi 0.17.2 jieba 0.42.1 Jinja2 2.11.2 jmespath 0.10.0 joblib 0.16.0 jsonschema 3.2.0 jupyter 1.0.0 jupyter-client 6.1.6 jupyter-console 6.1.0 jupyter-core 4.6.3 Keras-Applications 1.0.8 Keras-Preprocessing 1.1.2 kiwisolver 1.2.0 kmodes 0.10.2 lightgbm 2.3.1 llvmlite 0.33.0 lxml 4.4.2 Mako 1.1.3 Markdown 3.2.2 MarkupSafe 1.1.1 matplotlib 3.3.0 missingno 0.4.2 mistune 0.8.4 mkl-fft 1.2.0 mkl-random 1.2.0 mkl-service 2.3.0 mlflow 1.10.0 mlxtend 0.17.3 more-itertools 8.4.0 msrest 0.6.18 murmurhash 1.0.2 nbconvert 5.6.1 nbformat 5.0.7 networkx 2.4 nltk 3.5 notebook 6.0.3 numba 0.50.1 numexpr 2.7.1 numpy 1.19.1 oauthlib 3.1.0 opt-einsum 3.3.0 packaging 20.4 pandas 1.0.5 pandas-profiling 2.8.0 pandocfilters 1.4.2 parso 0.7.1 pexpect 4.8.0 phik 0.10.0 pickleshare 0.7.5 Pillow 7.2.0 pip 20.1.1 plac 1.1.3 plotly 4.9.0 pluggy 0.13.1 preshed 3.0.2 prettytable 0.7.2 prometheus-client 0.8.0 prometheus-flask-exporter 0.15.4 prompt-toolkit 3.0.5 protobuf 3.12.2 ptyprocess 0.6.0 py 1.9.0 pybind11 2.5.0 pycaret 2.0 pycparser 2.20 pyemd 0.5.1 Pygments 2.6.1 pyLDAvis 2.1.2 pyod 0.8.1 pyparsing 2.4.7 pyrsistent 0.16.0 pytest 5.4.3 python-dateutil 2.8.1 python-editor 1.0.4 pytz 2020.1 PyWavelets 1.1.1 PyYAML 5.3.1 pyzmq 19.0.1 qtconsole 4.7.5 QtPy 1.9.0 querystring-parser 1.2.4 regex 2020.7.14 requests 2.24.0 requests-oauthlib 1.3.0 retrying 1.3.3 s3transfer 0.3.3 sacremoses 0.0.43 scikit-learn 0.23.1 scipy 1.5.1 seaborn 0.10.1 Send2Trash 1.5.0 sentencepiece 0.1.91 setuptools 49.2.0.post20200712 Shapely 1.7.0 six 1.15.0 sklearn 0.0 smart-open 2.1.0 smmap 3.0.4 spacy 2.3.2 SQLAlchemy 1.3.13 sqlparse 0.3.1 srsly 1.0.2 suod 0.0.4 tabulate 0.8.7 tangled-up-in-unicode 0.0.6 tensorboard 1.15.0 tensorboardX 2.1 tensorflow-estimator 1.15.1 tensorflow-gpu 1.15.0 termcolor 1.1.0 terminado 0.8.3 testpath 0.4.4 textblob 0.15.3 thinc 7.4.1 threadpoolctl 2.0.0 tokenizers 0.7.0 torch 1.4.0 torchvision 0.5.0+cu92 tornado 6.0.4 tqdm 4.48.0 traitlets 4.3.3 transformers 2.11.0 umap-learn 0.4.6 urllib3 1.25.10 visions 0.4.4 wasabi 0.7.1 wcwidth 0.2.5 webencodings 0.5.1 websocket-client 0.57.0 Werkzeug 1.0.1 wheel 0.34.2 widgetsnbextension 3.5.1 wordcloud 1.7.0 wrapt 1.12.1 xgboost 1.1.1 yellowbrick 1.1 zipp 3.1.0 zope.interface 5.1.0