mhn install fails on linux ubuntu 16.04.7

[Berwynnnn]

After running sudo ./install.sh , i encountered this error

python-pip is already the newest version (8.1.1-2ubuntu0.6).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
+ pip install --upgrade pip
Collecting pip
  Using cached https://files.pythonhosted.org/packages/4b/30/e15b806597e67057e07a5acdc135216ccbf76a5f1681a324533b61066b0b/pip-22.2.2.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-mS1hws/pip/setup.py", line 7
        def read(rel_path: str) -> str:
                         ^
    SyntaxError: invalid syntax

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-mS1hws/pip/
You are using pip version 8.1.1, however version 22.2.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

does anyone know the solution to this issue please?

[rubenwelle]

I am having the same error with Ubuntu 16.04 (clean install)

Processing triggers for libc-bin (2.23-0ubuntu11.3) ...

• pip install --upgrade pip The directory '/home/captain811/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. The directory '/home/captain811/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. Collecting pip Downloading https://files.pythonhosted.org/packages/a3/50/c4d2727b99052780aad92c7297465af5fe6eec2dbae490aa9763273ffdc1/pip-22.3.1.tar.gz (2.1MB) 100% |████████████████████████████████| 2.1MB 580kB/s Complete output from command python setup.py egg_info: Traceback (most recent call last): File "", line 1, in File "/tmp/pip-build-R8hy6p/pip/setup.py", line 7 def read(rel_path: str) -> str: ^ SyntaxError: invalid syntax

  ---

  Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-R8hy6p/pip/ You are using pip version 8.1.1, however version 22.3.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.

[devel1988]

same error here