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Fix deepcopy in from_anywidget.py #5134

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Fix deepcopy in from_anywidget.py #5134

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0a1f01c
Fix deepcopy in from_anywidget.py
jmsmdy May 30, 2025
7d54a82
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 30, 2025
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6 changes: 6 additions & 0 deletions marimo/_plugins/ui/_impl/from_anywidget.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@

import hashlib
import weakref
from copy import deepcopy
from dataclasses import dataclass
from typing import TYPE_CHECKING, Any, Optional

Expand Down Expand Up @@ -190,6 +191,11 @@ def _convert_value(self, value: T) -> T:
self._prev_state = value
return value

def __deepcopy__(self, memo):
# Overriding UIElement deepcopy implementation
widget_deep_copy = deepcopy(self.widget, memo)
return from_anywidget(widget_deep_copy) # reuse caching

# After the widget has been initialized
# forward all setattr to the widget
def __setattr__(self, name: str, value: Any) -> None:
Expand Down
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