Support including .pyi alongside .py files (eg. foo/bar.py and foo/bar.pyi)

[thundergolfer]

In MyPy if you have a .py and .pyi file in the same folder with the same name then MyPy says that the .pyi should take precedence and the .py is ignored completely during type-checking.

In a branch, https://github.com/thundergolfer/bazel-mypy-integration/tree/jonathon/supporting-pyi-files, I was passing in both to the --cache-map and it was throwing out the error:

mypy_stubs/parse_name.pyi: error: Duplicate module named 'mypy_stubs.parse_name' (also at 'mypy_stubs/parse_name.py')

If could in my Starlark code check for this case and then ignore the .py, but for now I think I just won't support those kinds of .pyi files.

---

Open issue about this: python/mypy#3505

[thundergolfer]

Now supported.

[cristianmatache]

In my case, it still complains that there are 2 modules with the same name (.py and .pyi). I have a py_library target that depends on a mypy_stubs target, both files (e.g. x.py and x.pyi) in the same directory (stubs are not separate). I am using version 0.0.7. After some very short debugging I found in the template {SRCS} contains both .py and .pyi files.
Any ideas?

[thundergolfer]

I think this might be a regression. So you have this?

load("@my_deps//:requirements.bzl", "requirement")
load("@mypy_integration//:rules.bzl", "mypy_stubs")

mypy_stubs(
    name = "stubs",
    srcs = glob(["*.pyi"]),
)

py_binary(
    name = "foo",
    srcs = glob(["*.py"]),
    main = "foo.py",
    python_version = "PY3",
    deps = [
        ":stubs",
        requirement("requests"),
    ],
)