Add an initial set of type hints

These focus on the public API with the private aspect omitted. This is
because these are hard to type, and may not be required with modern
python. However, this should still be useful if adopted for code
that uses blinker.

1 files changed, 22 insertions, 0 deletions

diff --git a/pyproject.toml b/pyproject.toml
index 65e5e5d..8dd5b87 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ classifiers = [
 ]
 requires-python = ">= 3.7"
 dynamic = ["version"]
+dependencies = ["typing-extensions"]
 
 [project.urls]
 Homepage = "https://blinker.readthedocs.io"
@@ -36,6 +37,27 @@ Chat = "https://discord.gg/pallets"
 file = "README.rst"
 content-type = "text/x-rst"
 
+[tool.mypy]
+python_version = "3.7"
+files = ["src/blinker"]
+show_error_codes = true
+pretty = true
+#strict = true
+allow_redefinition = true
+disallow_subclassing_any = true
+#disallow_untyped_calls = true
+#disallow_untyped_defs = true
+disallow_incomplete_defs = true
+no_implicit_optional = true
+local_partial_types = true
+no_implicit_reexport = true
+strict_equality = true
+warn_redundant_casts = true
+warn_unused_configs = true
+warn_unused_ignores = true
+warn_return_any = true
+#warn_unreachable = True
+
 [tool.setuptools]
 license-files = ["LICENSE.rst"]
 include-package-data = false