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-rw-r--r--yt_dlp/casefold.py5
-rw-r--r--yt_dlp/jsinterp.py2
2 files changed, 6 insertions, 1 deletions
diff --git a/yt_dlp/casefold.py b/yt_dlp/casefold.py
new file mode 100644
index 000000000..41a53e5b6
--- /dev/null
+++ b/yt_dlp/casefold.py
@@ -0,0 +1,5 @@
+import warnings
+
+warnings.warn(DeprecationWarning(f'{__name__} is deprecated'))
+
+casefold = str.casefold
diff --git a/yt_dlp/jsinterp.py b/yt_dlp/jsinterp.py
index 9c280fb86..bda3fb459 100644
--- a/yt_dlp/jsinterp.py
+++ b/yt_dlp/jsinterp.py
@@ -812,9 +812,9 @@ class JSInterpreter:
\((?P<args>[^)]*)\)\s*
(?P<code>{.+})''' % {'name': re.escape(funcname)},
self.code)
- code, _ = self._separate_at_paren(func_m.group('code'))
if func_m is None:
raise self.Exception(f'Could not find JS function "{funcname}"')
+ code, _ = self._separate_at_paren(func_m.group('code'))
return [x.strip() for x in func_m.group('args').split(',')], code
def extract_function(self, funcname):