issue : examples/FinRL_Ensemble_StockTrading_ICAIF_2020.ipynb

# ## install finrl library
!pip install wrds
!pip install swig
!pip install git+https://github.com/AI4Finance-Foundation/FinRL.git

Looking in indexes: https://pypi.org/simple, https://us-python.pkg.dev/colab-wheels/public/simple/
Requirement already satisfied: wrds in /usr/local/lib/python3.9/dist-packages (3.1.6)
Requirement already satisfied: scipy in /usr/local/lib/python3.9/dist-packages (from wrds) (1.10.1)
Requirement already satisfied: psycopg2-binary in /usr/local/lib/python3.9/dist-packages (from wrds) (2.9.5)
Requirement already satisfied: numpy in /usr/local/lib/python3.9/dist-packages (from wrds) (1.22.4)
Requirement already satisfied: pandas in /usr/local/lib/python3.9/dist-packages (from wrds) (1.4.4)
Requirement already satisfied: sqlalchemy<2 in /usr/local/lib/python3.9/dist-packages (from wrds) (1.4.47)
Requirement already satisfied: greenlet!=0.4.17 in /usr/local/lib/python3.9/dist-packages (from sqlalchemy<2->wrds) (2.0.2)
Requirement already satisfied: python-dateutil>=2.8.1 in /usr/local/lib/python3.9/dist-packages (from pandas->wrds) (2.8.2)
Requirement already satisfied: pytz>=2020.1 in /usr/local/lib/python3.9/dist-packages (from pandas->wrds) (2022.7.1)
Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.9/dist-packages (from python-dateutil>=2.8.1->pandas->wrds) (1.16.0)
Looking in indexes: https://pypi.org/simple, https://us-python.pkg.dev/colab-wheels/public/simple/
Requirement already satisfied: swig in /usr/local/lib/python3.9/dist-packages (4.1.1)
Looking in indexes: https://pypi.org/simple, https://us-python.pkg.dev/colab-wheels/public/simple/
Collecting git+https://github.com/AI4Finance-Foundation/FinRL.git
Cloning https://github.com/AI4Finance-Foundation/FinRL.git to /tmp/pip-req-build-gh85fkro
Running command git clone --filter=blob:none --quiet https://github.com/AI4Finance-Foundation/FinRL.git /tmp/pip-req-build-gh85fkro
Resolved https://github.com/AI4Finance-Foundation/FinRL.git to commit 54a9f572605df44ced36168141024b9309d46c89
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... done
Collecting pyfolio@ git+https://github.com/quantopian/pyfolio.git#egg=pyfolio-0.9.2
Cloning https://github.com/quantopian/pyfolio.git to /tmp/pip-install-byjpvus8/pyfolio_b7838264bfb642a3b34ff96efb69ab1e
Running command git clone --filter=blob:none --quiet https://github.com/quantopian/pyfolio.git /tmp/pip-install-byjpvus8/pyfolio_b7838264bfb642a3b34ff96efb69ab1e
Resolved https://github.com/quantopian/pyfolio.git to commit 4b901f6d73aa02ceb6d04b7d83502e5c6f2e81aa
Preparing metadata (setup.py) ... done
Collecting elegantrl@ git+https://github.com/AI4Finance-Foundation/ElegantRL.git#egg=elegantrl
Cloning https://github.com/AI4Finance-Foundation/ElegantRL.git to /tmp/pip-install-byjpvus8/elegantrl_6bb24cd54c0847e38f396b570ebeeb30
Running command git clone --filter=blob:none --quiet https://github.com/AI4Finance-Foundation/ElegantRL.git /tmp/pip-install-byjpvus8/elegantrl_6bb24cd54c0847e38f396b570ebeeb30
Resolved https://github.com/AI4Finance-Foundation/ElegantRL.git to commit 594b0c31de443a24c1032b75418fdc134664e92f
Preparing metadata (setup.py) ... done
Requirement already satisfied: numpy>=1.17.3 in /usr/local/lib/python3.9/dist-packages (from finrl==0.3.5) (1.22.4)
Collecting ray[default,tune]>=2.0.0
Using cached ray-2.3.1-cp39-cp39-manylinux2014_x86_64.whl (58.6 MB)
Requirement already satisfied: pandas>=1.1.5 in /usr/local/lib/python3.9/dist-packages (from finrl==0.3.5) (1.4.4)
Requirement already satisfied: scikit-learn>=0.21.0 in /usr/local/lib/python3.9/dist-packages (from finrl==0.3.5) (1.2.2)
Collecting lz4
Using cached lz4-4.3.2-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (1.3 MB)
Collecting tensorboardX
Using cached tensorboardX-2.6-py2.py3-none-any.whl (114 kB)
Collecting gputil
Using cached GPUtil-1.4.0.tar.gz (5.5 kB)
Preparing metadata (setup.py) ... done
Requirement already satisfied: yfinance in /usr/local/lib/python3.9/dist-packages (from finrl==0.3.5) (0.2.13)
Collecting alpaca_trade_api>=2.1.0
Using cached alpaca_trade_api-3.0.0-py3-none-any.whl (33 kB)
Collecting jqdatasdk
Using cached jqdatasdk-1.8.11-py3-none-any.whl (158 kB)
Collecting stockstats>=0.4.0
Using cached stockstats-0.5.2-py2.py3-none-any.whl (20 kB)
Collecting exchange_calendars==3.6.3
Using cached exchange_calendars-3.6.3.tar.gz (152 kB)
Preparing metadata (setup.py) ... done
Requirement already satisfied: matplotlib in /usr/local/lib/python3.9/dist-packages (from finrl==0.3.5) (3.7.1)
Requirement already satisfied: gym>=0.17 in /usr/local/lib/python3.9/dist-packages (from finrl==0.3.5) (0.25.2)
Collecting stable-baselines3<2.0.0,>=1.6.2
Using cached stable_baselines3-1.7.0-py3-none-any.whl (171 kB)
Collecting ccxt>=1.66.32
Using cached ccxt-3.0.38-py2.py3-none-any.whl (3.6 MB)
Collecting importlib-metadata==4.13.0
Using cached importlib_metadata-4.13.0-py3-none-any.whl (23 kB)
Collecting pyluach
Using cached pyluach-2.2.0-py3-none-any.whl (25 kB)
Requirement already satisfied: python-dateutil in /usr/local/lib/python3.9/dist-packages (from exchange_calendars==3.6.3->finrl==0.3.5) (2.8.2)
Requirement already satisfied: pytz in /usr/local/lib/python3.9/dist-packages (from exchange_calendars==3.6.3->finrl==0.3.5) (2022.7.1)
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Collecting websockets<11,>=9.0
Using cached websockets-10.4-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl (106 kB)
Collecting msgpack==1.0.3
Using cached msgpack-1.0.3-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (322 kB)
Collecting deprecation==2.1.0
Using cached deprecation-2.1.0-py2.py3-none-any.whl (11 kB)
Requirement already satisfied: urllib3<2,>1.24 in /usr/local/lib/python3.9/dist-packages (from alpaca_trade_api>=2.1.0->finrl==0.3.5) (1.26.15)
Collecting aiohttp==3.8.1
Using cached aiohttp-3.8.1-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl (1.2 MB)
Requirement already satisfied: requests<3,>2 in /usr/local/lib/python3.9/dist-packages (from alpaca_trade_api>=2.1.0->finrl==0.3.5) (2.27.1)
Collecting websocket-client<2,>=0.56.0
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Collecting yarl<2.0,>=1.0
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Collecting frozenlist>=1.1.1
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Collecting async-timeout<5.0,>=4.0.0a3
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Collecting virtualenv>=20.0.24
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Collecting py-spy>=0.2.0
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Collecting gpustat>=1.0.0
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Preparing metadata (setup.py) ... done
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**```
Collecting gym>=0.17
Using cached gym-0.21.0.tar.gz (1.5 MB)
error: subprocess-exited-with-error

**× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
Preparing metadata (setup.py) ... error
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.**
```**