Monkey patch coverage on MacOS

Author: deathaxe

unittesting/unit.py

@@ -10,6 +10,27 @@
 
 try:
     import coverage
+
+    # ST4 does not ship `_sysconfigdata__darwin_darwin` module, required by
+    # coverage 7.x on MacOS, which causes `sysconfig.add_paths()` to fail.
+    # On other OSs it returns potentially unwanted paths outside of ST ecosystem.
+    # Thus monkey patch it.
+    try:
+        import coverage.inorout
+
+        def __add_third_party_paths(paths):
+            """Return $data/Lib/pythonXY as 3rd-party path."""
+            libs_path = os.path.join(
+                os.path.dirname(sublime.packages_path()),
+                "Lib",
+                "python{}{}".format(sys.version_info.major, sys.version_info.minor)
+            )
+            paths.add(libs_path)
+
+        coverage.inorout.add_third_party_paths = __add_third_party_paths
+    except:
+        pass
+
 except Exception:
     coverage = False