Not able to run the first file

`girish@pc1804:~$ lsb_release -a`
`No LSB modules are available.`
`Distributor ID: Ubuntu`
`Description: Ubuntu 18.04.6 LTS`
`Release: 18.04`
`Codename: bionic`
`girish@pc1804:~$ python --version`
`Python 3.6.5 :: Anaconda, Inc.`
`girish@pc1804:~$ `
` `
`girish@pc1804:~$ source activate finrl`
`(finrl) girish@pc1804:~$ jupyter notebook`

`http://localhost:8888/notebooks/FinRL/tutorials/1-Introduction/Stock_Fundamental.ipynb`

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

is returning below error :

`Collecting git+https://github.com/AI4Finance-Foundation/FinRL.git`
` Cloning https://github.com/AI4Finance-Foundation/FinRL.git to /tmp/pip-req-build-75ppc0wj`
` Complete output from command python setup.py egg_info:`
` Traceback (most recent call last):`
` File "", line 1, in `
` File "/tmp/pip-req-build-75ppc0wj/setup.py", line 1`
` from __future__ import annotations`
` ^`
` SyntaxError: future feature annotations is not defined`
` `
` ----------------------------------------`
`Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-req-build-75ppc0wj/`
`You are using pip version 10.0.1, however version 21.3.1 is available.`
`You should consider upgrading via the 'pip install --upgrade pip' command.`

When I checks /tmp folder there is no pip-req-build-75ppc0wj folder exists.