gh-113317: Argument Clinic: don't use fail() in CLI (#115513)

diff --git a/Tools/clinic/clinic.py b/Tools/clinic/clinic.py
index e63596c30079403df173835ca685356da32ec38c..2381004f02352aba6da30cc3c9a6ac373c113cb5 100755 (executable)
--- a/Tools/clinic/clinic.py
+++ b/Tools/clinic/clinic.py
@@ -2500,12 +2500,12 @@ def parse_file(
 
     extension = os.path.splitext(filename)[1][1:]
     if not extension:
-        fail(f"Can't extract file type for file {filename!r}")
+        raise ClinicError(f"Can't extract file type for file {filename!r}")
 
     try:
         language = extensions[extension](filename)
     except KeyError:
-        fail(f"Can't identify file type for file {filename!r}")
+        raise ClinicError(f"Can't identify file type for file {filename!r}")
 
     with open(filename, encoding="utf-8") as f:
         raw = f.read()