Various string cleanups (#30435)

* Remove some unnecessary string concatenations

* Replace some simple str.formats with f-strings

* Replace some string concatenations with f-strings

script/gen_requirements_all.py

@@ -182,7 +182,7 @@ def gather_requirements_from_modules(errors, reqs):
         try:
             module = importlib.import_module(package)
         except ImportError as err:
-            print("{}: {}".format(package.replace(".", "/") + ".py", err))
+            print("{}.py: {}".format(package.replace(".", "/"), err))
             errors.append(package)
             continue
 
@@ -288,8 +288,8 @@ def diff_file(filename, content):
     """Diff a file."""
     return list(
         difflib.context_diff(
-            [line + "\n" for line in Path(filename).read_text().split("\n")],
-            [line + "\n" for line in content.split("\n")],
+            [f"{line}\n" for line in Path(filename).read_text().split("\n")],
+            [f"{line}\n" for line in content.split("\n")],
             filename,
             "generated",
         )

script/hassfest/dependencies.py

@@ -222,9 +222,8 @@ def validate_dependencies(
     ):
         integration.add_error(
             "dependencies",
-            "Using component {} but it's not in 'dependencies' or 'after_dependencies'".format(
-                domain
-            ),
+            f"Using component {domain} but it's not in 'dependencies' "
+            "or 'after_dependencies'",
         )
 
 

script/hassfest/model.py

@@ -50,9 +50,9 @@ class Integration:
             init = fil / "__init__.py"
             if not init.exists():
                 print(
-                    "Warning: {} missing, skipping directory. "
+                    f"Warning: {init} missing, skipping directory. "
                     "If this is your development environment, "
-                    "you can safely delete this folder.".format(init)
+                    "you can safely delete this folder."
                 )
                 continue
 

script/inspect_schemas.py

@@ -39,8 +39,7 @@ def main():
             if hasattr(module, "CONFIG_SCHEMA"):
                 add_msg(
                     "WARNING",
-                    "Module {} contains PLATFORM and CONFIG "
-                    "schemas".format(module_name),
+                    f"Module {module_name} contains PLATFORM and CONFIG schemas",
                 )
             add_msg("PLATFORM SCHEMA", module_name)
             continue
@@ -52,7 +51,7 @@ def main():
         schema_type, schema = _identify_config_schema(module)
 
         add_msg(
-            "CONFIG_SCHEMA " + str(schema_type),
+            f"CONFIG_SCHEMA {schema_type}",
             module_name + " " + color("cyan", str(schema)[:60]),
         )
 

script/lazytox.py

@@ -76,8 +76,7 @@ async def async_exec(*args, display=False):
         proc = await asyncio.create_subprocess_exec(*args, **kwargs)
     except FileNotFoundError as err:
         printc(
-            FAIL,
-            "Could not execute {}. Did you install test requirements?".format(args[0]),
+            FAIL, f"Could not execute {args[0]}. Did you install test requirements?",
         )
         raise err
 
@@ -202,7 +201,7 @@ async def main():
             elif parts[-1] == "__main__.py":
                 parts[-1] = "test_main.py"
             else:
-                parts[-1] = "test_" + parts[-1]
+                parts[-1] = f"test_{parts[-1]}"
             fname = "/".join(parts)
             if os.path.isfile(fname):
                 test_files.add(fname)