chore: Reduce single use variables

scrapyd_client/__main__.py

@@ -68,37 +68,34 @@ def spiders(args):
 def parse_cli_args(args):
     cfg = get_config()
 
-    target_default = cfg.get("deploy", "url", fallback=DEFAULT_TARGET_URL).rstrip("/")
-    username_default = cfg.get("deploy", "username", fallback=None)
-    password_default = cfg.get("deploy", "password", fallback=None)
-    project_default = cfg.get("deploy", "project", fallback=None)
     project_kwargs = {
         "metavar": "PROJECT",
         "required": True,
         "help": "Specifies the project, can be a globbing pattern.",
     }
-    if project_default:
+    if project_default := cfg.get("deploy", "project", fallback=None):
         project_kwargs["default"] = project_default
 
     description = "A command line interface for Scrapyd."
     mainparser = ArgumentParser(description=description)
     subparsers = mainparser.add_subparsers()
+
     mainparser.add_argument(
         "-t",
         "--target",
-        default=target_default,
+        default=cfg.get("deploy", "url", fallback=DEFAULT_TARGET_URL).rstrip("/"),
         help="Specifies the Scrapyd's API base URL.",
     )
     mainparser.add_argument(
         "-u",
         "--username",
-        default=username_default,
+        default=cfg.get("deploy", "username", fallback=None),
         help="Specifies the username to connect to the Scrapyd target.",
     )
     mainparser.add_argument(
         "-p",
         "--password",
-        default=password_default,
+        default=cfg.get("deploy", "password", fallback=None),
         help="Specifies the password to connect to the Scrapyd target.",
     )
 

scrapyd_client/utils.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import netrc
 import os
 from configparser import BasicInterpolation, ConfigParser
@@ -17,19 +19,8 @@ def before_get(self, parser, section, option, value, defaults):
         return os.path.expandvars(value)
 
 
-def get_auth(url, username, password):
-    """
-    Retrieve authentication from arguments or infers from .netrc.
-
-    :param url: The URL to check.
-    :type url: str
-    :param username: The username to use.
-    :type username: str
-    :param password: The password to use.
-    :type password: str
-    :returns: An HTTPBasicAuth object or None.
-    :rtype: requests.auth.HTTPBasicAuth or None
-    """
+def get_auth(url: str, username: str, password: str) -> HTTPBasicAuth | None:
+    """Retrieve authentication from arguments or infers from .netrc."""
     if username:
         return HTTPBasicAuth(username=username, password=password)