Merge type hints to Python files from my typings folder?

[zarif98]

I have a bunch of stub files organized by my C# stub generator DLLs, which are organized by DLL namespace names. They are then called by my Python scripts using clr.addReference("name"), which is a DLL name called name.dll, and then I import the classes that I need to run my scripts like from "name" import "hello". MyPy and VsCode is able to recognize these stubs and is able to proper syntax highlighting. How would I go about merging those types with my Python code?

It seems like merge-pyi tool wants the stub to have the same name as the python script? Is there a way I can work around and load all of my stubs and match it with my Python scripts the same way VsCode and MyPy does it?

[h-joo]

I think I didn't fully understand your use case, but in merge_pyi there is a flag to indicate which Python file, stub file to use, were these not usable?

[zarif98]

So my python stubs are for the modules they are calling.

Like for example, my Python code looks like this:

from Microsoft-Stubs.CodeAnalysis import HelloWorld()

This is my generated Python stub tree structure: They all have and init.pyi file within the folders as well

I am using this GitHub repo to generate my Python stubs: https://github.com/Mimer29or40/pythonnet-stubs

And Visual Studio Code and MyPy are able to load the stubs appropriately and even let me go into the stubs themselves giving me auto-complete and syntax highlighting. Is it possible to have it how Visual Studio Code and MyPy are able to do automatically? I have way too many stubs to parse through since it is our entire DLL codebase written in Python stubs.

[h-joo]

sadly, the answer would be no, and I don't think we have resources right now to support such feature 😓

[zarif98]

Could we label this is a future feature then? Would be really nice to have in the future since my modules are organized nearly enough for Pylance, Python and MyPy to recognize

[martindemello]

it's worth experimenting with generating an imports_info file corresponding to your module structure and passing that to pytype. might need a bit of work to support passing the imports info to pytype and having it pass that on to pytpye-single.

[zarif98]

Any ideas on how to generate one? Sorry, what is an imports_info file? I can try experimenting today.

[martindemello]

sorry, my mistake, i forgot merge_pyi does not use an imports_info file. if you would like to try adding the feature, the key line of code to change is here: https://github.com/google/pytype/blob/main/pytype/tools/merge_pyi/merge_pyi.py#L146

the rough outline of the change is:

1. change merge_project to take an optional imports_map argument (here: https://github.com/google/pytype/blob/main/pytype/tools/merge_pyi/merge_project.py#L10)
2. deserialise the imports_map file into a python dict and pass it to merge_tree here: https://github.com/google/pytype/blob/main/pytype/tools/merge_pyi/merge_project.py#L70
3. in merge_tree, change this bit of code to if imports_map: pyi_file = imports_map[f] else: pyi = path_utils.join(pyi_dir, f + "i")

in your own project you need to generate the imports_map dictionary as a map of {python_file: pyi file} and serialise it in a way that merge_project can read back (i suggest json)