From bb73791b59f74b6621a87036c14a6be6a23e0e55 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Sun, 2 May 2021 18:35:41 -0400
Subject: refactor: convert more %-formatting to f-strings

---
 coverage/control.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'coverage/control.py')

diff --git a/coverage/control.py b/coverage/control.py
index 95d22007..0ec9264c 100644
--- a/coverage/control.py
+++ b/coverage/control.py
@@ -361,8 +361,8 @@ class Coverage:
         if slug:
             msg = f"{msg} ({slug})"
         if self._debug.should('pid'):
-            msg = "[%d] %s" % (os.getpid(), msg)
-        sys.stderr.write("Coverage.py warning: %s\n" % msg)
+            msg = f"[{os.getpid()}] {msg}"
+        sys.stderr.write(f"Coverage.py warning: {msg}\n")
 
         if once:
             self._no_warn_slugs.append(slug)
-- 
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