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-rw-r--r--src/prompt_toolkit/layout/margins.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/prompt_toolkit/layout/margins.py b/src/prompt_toolkit/layout/margins.py
index cc9dd96..737a74d 100644
--- a/src/prompt_toolkit/layout/margins.py
+++ b/src/prompt_toolkit/layout/margins.py
@@ -1,6 +1,7 @@
"""
Margin implementations for a :class:`~prompt_toolkit.layout.containers.Window`.
"""
+
from __future__ import annotations
from abc import ABCMeta, abstractmethod
@@ -83,7 +84,7 @@ class NumberedMargin(Margin):
def get_width(self, get_ui_content: Callable[[], UIContent]) -> int:
line_count = get_ui_content().line_count
- return max(3, len("%s" % line_count) + 1)
+ return max(3, len(f"{line_count}") + 1)
def create_margin(
self, window_render_info: WindowRenderInfo, width: int, height: int