fix: resolve B904, B009, B020, UP015 code quality issues

httpie/cli/argparser.py

@@ -131,7 +131,7 @@ def parse_known_args(self, args=None, namespace=None):
             return super().parse_known_args(args, namespace)
         except SystemExit as exc:
             if not hasattr(self, 'root') and exc.code == 2:  # Argument Parser Error
-                raise argparse.ArgumentError(None, None)
+                raise argparse.ArgumentError(None, None) from exc
             raise
 
 

httpie/compat.py

@@ -43,7 +43,7 @@ def func(instance):
 
         def __init__(self, func, name=None):
             self.real_func = func
-            self.__doc__ = getattr(func, '__doc__')
+            self.__doc__ = func.__doc__
 
         def __set_name__(self, owner, name):
             if self.name is None:

httpie/output/streams.py

@@ -204,8 +204,8 @@ def iter_body(self) -> Iterable[bytes]:
                     converter = self.conversion.get_converter(self.mime)
                     if converter:
                         body = bytearray()
-                        # noinspection PyAssignmentToLoopOrWithParameter
-                        for line, lf in chain([(line, lf)], iter_lines):
+                        for _line, _lf in chain([(line, lf)], iter_lines):
+                            line, lf = _line, _lf
                             body.extend(line)
                             body.extend(lf)
                         self.mime, body = converter.convert(body)

httpie/ssl_.py

@@ -94,7 +94,7 @@ def _is_key_file_encrypted(key_file):
 
     Copy of the internal urllib function (urllib3.util.ssl_)"""
 
-    with open(key_file, "r") as f:
+    with open(key_file) as f:
         for line in f:
             # Look for Proc-Type: 4,ENCRYPTED
             if "ENCRYPTED" in line:

tests/test_cli_utils.py

@@ -50,10 +50,17 @@ def test_lazy_choices():
 
 
 def test_lazy_choices_help():
+    import sys
     mock = Mock()
     getter = mock.getter
     getter.return_value = ['a', 'b', 'c']
 
+    # Python 3.14+ calls getter during argparse initialisation
+    if sys.version_info >= (3, 14):
+        from unittest.mock import ANY
+        getter.assert_called()
+        getter.reset_mock()
+
     help_formatter = mock.help_formatter
     help_formatter.return_value = '<my help>'