Add instructions for manual installation of ansys-api-fluent

[mkundu1]

Having ansys-api-fluent as a git dependency is problematic as a C++ compiler is required to build its .whl file. Adding an instruction to manually install the package till we have it in PyPI.

[dnwillia-work]

Interesting, why is a C++ compiler required.

[mkundu1]

Interesting, why is a C++ compiler required.

What I've found - ansys-api-fluent has a build-time dependency on ansys_tools_protoc_helper which depends on an older version of grpcio-tools (1.17.0) which doesn't have a .whl file for python 3.9 in the PyPI. So the .whl is compiled for grpcio-tools and that has a C++ dependency as it uses python extensions.

[dnwillia-work]

Interesting, why is a C++ compiler required.

What I've found - ansys-api-fluent has a build-time dependency on ansys_tools_protoc_helper which depends on an older version of grpcio-tools (1.17.0) which doesn't have a .whl file for python 3.9 in the PyPI. So the .whl is compiled for grpcio-tools and that has a C++ dependency as it uses python extensions.

In the readme:

https://github.521000.best.mcas.ms/ansys/ansys-tools-protoc-helper

it says you can use a newer version of grpcio-tools right? Does that matter / help?

[mkundu1]

Interesting, why is a C++ compiler required.

What I've found - ansys-api-fluent has a build-time dependency on ansys_tools_protoc_helper which depends on an older version of grpcio-tools (1.17.0) which doesn't have a .whl file for python 3.9 in the PyPI. So the .whl is compiled for grpcio-tools and that has a C++ dependency as it uses python extensions.

In the readme:

https://github.521000.best.mcas.ms/ansys/ansys-tools-protoc-helper

it says you can use a newer version of grpcio-tools right? Does that matter / help?

ansys-api-fluent has a runtime/install-time dependency on grpcio~=1.30 (which is installed during the installation of .whl file). But it has a build-time dependency on grpcio-tools==1.17.0 (which is installed during the compilation of .whl file) through the ansys_tools_protoc_helper package. By adding ansys-api-fluent as a git dependency of pyfluent, ansys-api-fluent is built from its source during the pyfluent installation. So, the pyfluent installation now requires installation of grpcio-tools==1.17.0.