[cleanup] Misc cleanup and refactor (#2173)

yt_dlp/cache.py

@@ -1,3 +1,4 @@
+import contextlib
 import errno
 import json
 import os
@@ -57,7 +58,7 @@ class Cache:
             return default
 
         cache_fn = self._get_cache_fn(section, key, dtype)
-        try:
+        with contextlib.suppress(OSError):
             try:
                 with open(cache_fn, encoding='utf-8') as cachef:
                     self._ydl.write_debug(f'Loading {section}.{key} from cache')
@@ -68,8 +69,6 @@ class Cache:
                 except OSError as oe:
                     file_size = str(oe)
                 self._ydl.report_warning(f'Cache retrieval from {cache_fn} failed ({file_size})')
-        except OSError:
-            pass  # No cache available
 
         return default