python: add py.typed file

It marks the package as supporting typing according to PEP 561 <https://peps.python.org/pep-0561/>

Also remove zip-safe option from setuptools configuration for deltachat-rpc-client.
It is deprecated in setuptools and not used for wheel package format according to <https://setuptools.pypa.io/en/latest/deprecated/zip_safe.html>

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Changes
 - deltachat-rpc-client: use `dataclass` for `Account`, `Chat`, `Contact` and `Message` #4042
+- python: mark bindings as supporting typing according to PEP 561 #4045
 
 ### Fixes
 - deltachat-rpc-server: do not block stdin while processing the request. #4041

deltachat-rpc-client/pyproject.toml

@@ -13,13 +13,6 @@ dynamic = [
     "version"
 ]
 
-[tool.setuptools]
-# We declare the package not-zip-safe so that our type hints are also available
-# when checking client code that uses our (installed) package.
-# Ref:
-# https://mypy.readthedocs.io/en/stable/installed_packages.html?highlight=zip#using-installed-packages-with-mypy-pep-561
-zip-safe = false
-
 [tool.setuptools.package-data]
 deltachat_rpc_client = [
     "py.typed"

python/pyproject.toml

@@ -36,6 +36,11 @@ dynamic = [
 [project.entry-points.pytest11]
 "deltachat.testplugin" = "deltachat.testplugin"
 
+[tool.setuptools.package-data]
+deltachat = [
+    "py.typed"
+]
+
 [tool.setuptools_scm]
 root = ".."
 tag_regex = '^(?P<prefix>py-)?(?P<version>[^\+]+)(?P<suffix>.*)?$'