Don't use is_relative_to for backwards compatibility

nf_core/modules/modules_command.py

@@ -55,7 +55,7 @@ def get_pipeline_modules(self, local=False):
             module_relpaths = (
                 Path(dir).relative_to(module_base_path)
                 for dir, _, files in os.walk(module_base_path)
-                if "main.nf" in files and not Path(dir).relative_to(module_base_path).is_relative_to("local")
+                if "main.nf" in files and not str(Path(dir).relative_to(module_base_path)).startswith("local")
             )
             # The two highest directories are the repo owner and repo name. The rest is the module name
             repos_and_modules = (("/".join(dir.parts[:2]), "/".join(dir.parts[2:])) for dir in module_relpaths)

nf_core/modules/nfcore_module.py

@@ -55,10 +55,11 @@ def __init__(self, module_name, repo_name, module_dir, repo_type, base_dir, nf_c
                     self.is_patched = True
                     self.patch_path = patch_path
         else:
+            # The main file is just the local module
+            self.main_nf = self.module_dir
+            self.module_name = self.module_dir.stem
             # These attributes are only used by nf-core modules
             # so just initialize them to None
-            self.module_name = None
-            self.main_nf = None
             self.meta_yml = None
             self.test_dir = None
             self.test_yml = None