From 50dbc3559560323ac698932d06702cec078c7ae0 Mon Sep 17 00:00:00 2001
From: Jamie Hardt <jamie@squad51.us>
Date: Thu, 17 Sep 2026 11:28:36 -0700
Subject: [PATCH] Ruff

---
 docs/source/conf.py             |  1 -
 pyproject.toml                  |  3 +++
 src/wavinfo/__init__.py         |  2 +-
 src/wavinfo/__main__.py         | 16 ++++++++++------
 src/wavinfo/wave_dbmd_reader.py |  6 ------
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/docs/source/conf.py b/docs/source/conf.py
index c0fdb6b..72e8486 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 #
 # Configuration file for the Sphinx documentation builder.
 #
diff --git a/pyproject.toml b/pyproject.toml
index 3de1026..c7d9909 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,9 +65,12 @@ indent-width = 4
 [tool.ruff.lint]
 fixable = ['ALL']
 ignore = [
+    'FA100', #Add `from __future__ import annotations` to simplify `typing.Optional`
     'UP022', # Prefer `capture_output` over sending `stdout` and `stderr` to `PIPE`
     'SIM115', # Use a context manager for opening files
     'UP031', #Use format specifiers instead of percent format
+    'C408', # Unnecessary `dict()` call (rewrite as a literal)
+    'C417' # Unnecessary `map()` usage (rewrite using a generator expression)
 ]
 
 # [tool.pylint]
diff --git a/src/wavinfo/__init__.py b/src/wavinfo/__init__.py
index 82e9cb0..fd0ffcc 100644
--- a/src/wavinfo/__init__.py
+++ b/src/wavinfo/__init__.py
@@ -2,7 +2,7 @@
 Probe WAVE Files for iXML, Broadcast-WAVE and other metadata.
 """
 
-__all__ = ["WavInfoReader", "WavInfoEOFError"]
+__all__ = ["WavInfoEOFError", "WavInfoReader"]
 
 from .riff_parser import WavInfoEOFError
 from .wave_reader import WavInfoReader
diff --git a/src/wavinfo/__main__.py b/src/wavinfo/__main__.py
index 9d1ddf7..43001a4 100644
--- a/src/wavinfo/__main__.py
+++ b/src/wavinfo/__main__.py
@@ -31,7 +31,11 @@ class MetaBrowser(Cmd):
     prompt = "(wavinfo) "
 
     metadata: Union[List, Dict]
-    path: List[str] = []
+    path: List[str]
+
+    def preloop(self) -> None:
+        self.path = []
+        return super().preloop()
 
     @property
     def cwd(self):
@@ -91,7 +95,7 @@ class MetaBrowser(Cmd):
                 else:
                     print(f"Index {argv[0]} does not exist")
             elif isinstance(self.cwd, dict):
-                if argv[0] in self.cwd.keys():
+                if argv[0] in self.cwd:
                     self.path = self.path + [argv[0]]
                 else:
                     print(f'Key "{argv[0]}" does not exist')
@@ -177,12 +181,14 @@ def main():
             else:
                 ret_dict = {
                     "filename": arg,
-                    "run_date": datetime.datetime.now().isoformat(),
+                    "run_date": datetime.datetime.now(
+                        tz=datetime.timezone.utc
+                    ).isoformat(),
                     "application": f"wavinfo {version}",
                     "scopes": {},
                 }
                 for scope, name, value in this_file.walk():
-                    if scope not in ret_dict["scopes"].keys():
+                    if scope not in ret_dict["scopes"]:
                         ret_dict["scopes"][scope] = {}
 
                     ret_dict["scopes"][scope][name] = value
@@ -198,8 +204,6 @@ def main():
                 file=sys.stderr,
             )
             continue
-        except Exception as e:
-            raise e
 
         if len(interactive_dict) > 0:
             cli = MetaBrowser()
diff --git a/src/wavinfo/wave_dbmd_reader.py b/src/wavinfo/wave_dbmd_reader.py
index e471f3a..a25563f 100644
--- a/src/wavinfo/wave_dbmd_reader.py
+++ b/src/wavinfo/wave_dbmd_reader.py
@@ -178,22 +178,16 @@ class DolbyDigitalPlusMetadata:
         Per ATSC/A52 § 5.4.2.12, this is not in use and always 0xFF.
         """
 
-        pass
-
     class MixLevel(int):
         """
         § 4.3.6.2
         """
 
-        pass
-
     class DialnormLevel(int):
         """
         § 4.3.4.4
         """
 
-        pass
-
     class RoomType(Enum):
         """
         `roomtyp` 4.3.6.3