fix: Fix import paths with site-packages as part of package name

rope/contrib/autoimport/sqlite.py

@@ -369,7 +369,10 @@ def generate_cache(
         project are cached.
         """
         if resources is None:
-            resources = self.project.get_python_files()
+            resources = [
+                f for f in self.project.get_python_files()
+                if "site-packages" not in f.pathlib.parts
+            ]
         job_set = task_handle.create_jobset(
             "Generating autoimport cache", len(resources)
         )

rope/contrib/autoimport/utils.py

@@ -69,6 +69,14 @@ def get_modname_from_path(
     package_name: str = package_path.stem
     rel_path_parts = modpath.relative_to(package_path).parts
     modname = ""
+    try:
+        site_packages_index = rel_path_parts.index("site-packages")
+        raise RuntimeError("No site-packages allowed here.", modpath)
+    except ValueError:
+        pass
+    else:
+        # If path includes "site-packages", we're interested in part after this.
+        rel_path_parts = rel_path_parts[site_packages_index + 1:]
     if len(rel_path_parts) > 0:
         for part in rel_path_parts[:-1]:
             modname += part

ropetest/contrib/autoimport/utilstest.py

@@ -34,6 +34,13 @@ def test_get_modname_single_file(typing_path):
     assert utils.get_modname_from_path(typing_path, typing_path) == "typing"
 
 
+def test_get_modname_external(example_external_package_path):
+    assert utils.get_modname_from_path(
+        example_external_package_path,
+        example_external_package_path,
+    ) == "external_fixturepkg"
+
+
 def test_get_modname_folder(
     example_external_package_path,
     example_external_package_module_path,