Revert "GH-133600: Refactor wasi.py into wasi/__main__.py"

.github/CODEOWNERS

@@ -298,12 +298,7 @@ Lib/test/test_interpreters/   @ericsnowcurrently
 **/*-ios*                     @freakboy3742
 
 # WebAssembly
-Tools/wasm/config.site-wasm32-emscripten  @freakboy3742
-/Tools/wasm/README.md         @brettcannon @freakboy3742
-/Tools/wasm/wasi-env          @brettcannon
-/Tools/wasm/wasi.py           @brettcannon
-/Tools/wasm/emscripten        @freakboy3742
-/Tools/wasm/wasi              @brettcannon
+/Tools/wasm/                  @brettcannon @freakboy3742
 
 # SBOM
 /Misc/externals.spdx.json     @sethmlarson

Tools/wasm/mypy.ini

@@ -0,0 +1,11 @@
+[mypy]
+files = Tools/wasm/wasm_*.py
+pretty = True
+show_traceback = True
+
+# Make sure the wasm can be run using Python 3.8:
+python_version = 3.8
+
+# Be strict...
+strict = True
+enable_error_code = truthy-bool,ignore-without-code

Tools/wasm/wasi-env

@@ -1,8 +1,7 @@
 #!/bin/sh
 set -e
 
-# NOTE: to be removed once no longer used in https://github.com/python/buildmaster-config/blob/main/master/custom/factories.py ;
-#       expected in Python 3.18 as 3.13 is when `wasi.py` was introduced.
+# NOTE: to be removed once no longer used in https://github.com/python/buildmaster-config/blob/main/master/custom/factories.py .
 
 # function
 usage() {