From 1b94835aac3268a32bfa4ce0df585dbb97457a06 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Thu, 11 Nov 2021 07:23:36 -0500
Subject: style: convert more string formatting to f-strings

---
 coverage/execfile.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'coverage/execfile.py')

diff --git a/coverage/execfile.py b/coverage/execfile.py
index 3da3ba1f..38dc1d07 100644
--- a/coverage/execfile.py
+++ b/coverage/execfile.py
@@ -144,7 +144,7 @@ class PyRunner:
                     self.arg0 = try_filename
                     break
             else:
-                raise NoSource("Can't find '__main__' module in '%s'" % self.arg0)
+                raise NoSource(f"Can't find '__main__' module in '{self.arg0}'")
 
             # Make a spec. I don't know if this is the right way to do it.
             try_filename = python_reported_file(try_filename)
-- 
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