Component
Reactive Programming
Severity
P1 - High (major feature broken)
Shiny Version
1.4.0
Python Version
3.10.12
Minimal Reproducible Example
from shiny.express import input, render, ui
@render.express
def myrender():
ui.input_select("sel", None, ["All", "So", "Much"], selected="All")
input.sel()
"Sadly, we never get here - silently. Poor user will never know why."
"Actually, nothing is rendered at all."Behavior
The code above produces no rendered output and no error messages. This can hardly be called "transparent reactivity" (re: https://shiny.posit.co/py/docs/overview.html#reactivity ), as nothing there is transparent.
Expected behavior:
Complexity of dealing with circular dependencies (detecting, and whenever possible, avoiding in a manner of least user surprise) is understood. Yet, apparently, would be nice to do something about such cases.
Error Messages (if any)
Environment
Component
Reactive Programming
Severity
P1 - High (major feature broken)
Shiny Version
1.4.0
Python Version
3.10.12
Minimal Reproducible Example
Behavior
The code above produces no rendered output and no error messages. This can hardly be called "transparent reactivity" (re: https://shiny.posit.co/py/docs/overview.html#reactivity ), as nothing there is transparent.
Expected behavior:
Complexity of dealing with circular dependencies (detecting, and whenever possible, avoiding in a manner of least user surprise) is understood. Yet, apparently, would be nice to do something about such cases.
Error Messages (if any)
None!Environment