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fix(MarkdownFence): gracefully handle missing Static child in _retheme callback #5525

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fix(MarkdownFence): gracefully handle missing Static child in _retheme callback #5525

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8 changes: 6 additions & 2 deletions src/textual/widgets/_markdown.py
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Original file line number Diff line number Diff line change
@@ -20,6 +20,7 @@
from textual.app import ComposeResult
from textual.await_complete import AwaitComplete
from textual.containers import Horizontal, Vertical, VerticalScroll
from textual.css.query import NoMatches
from textual.events import Mount
from textual.message import Message
from textual.reactive import reactive, var
@@ -425,7 +426,7 @@ class MarkdownOrderedList(MarkdownList):

MarkdownOrderedList Vertical {
height: auto;
width: 1fr;
width: 1fr;
}
"""

@@ -651,7 +652,10 @@ def _retheme(self) -> None:
if self.app.current_theme.dark
else self._markdown.code_light_theme
)
self.get_child_by_type(Static).update(self._block())
try:
self.get_child_by_type(Static).update(self._block())
except NoMatches:
pass

def compose(self) -> ComposeResult:
yield Static(
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