Update src/escpos/printer/lp.py

Add return type Co-authored-by: Patrick Kanzler <4189642+patkan@users.noreply.github.com>
2023-09-25 18:45:33 +02:00 · 2023-09-25 18:45:33 +02:00 · 59579c477d
commit 59579c477d
parent 5062a09b0a
1 changed files with 1 additions and 1 deletions
--- a/src/escpos/printer/lp.py
+++ b/src/escpos/printer/lp.py
@ -155,7 +155,7 @@ class LP(Escpos):
        self.device.terminate()
        self._device = False

-    def flush(self):
+    def flush(self) -> None:
        """End line and wait for new commands."""
        if self.device.stdin.writable():
            self.device.stdin.write(b"\n")