Display a slider widget.

This supports int, float, date, time, and datetime types.

This also allows you to render a range slider by passing a two-element tuple or list as the value.

The difference between st.slider and st.select_slider is that slider only accepts numerical or date/time data and takes a range as input, while select_slider accepts any datatype and takes an iterable set of options.

Function signature

st.slider(label, min_value=None, max_value=None, value=None, step=None, format=None, key=None, help=None, on_change=None, args=None, kwargs=None)


label (str)

A short label explaining to the user what this slider is for.

min_value (a supported type or None)

The minimum permitted value. Defaults to 0 if the value is an int, 0.0 if a float, value - timedelta(days=14) if a date/datetime, time.min if a time

max_value (a supported type or None)

The maximum permitted value. Defaults to 100 if the value is an int, 1.0 if a float, value + timedelta(days=14) if a date/datetime, time.max if a time

value (a supported type or a tuple/list of supported types or None)

The value of the slider when it first renders. If a tuple/list of two values is passed here, then a range slider with those lower and upper bounds is rendered. For example, if set to (1, 10) the slider will have a selectable range between 1 and 10. Defaults to min_value.

step (int/float/timedelta or None)

The stepping interval. Defaults to 1 if the value is an int, 0.01 if a float, timedelta(days=1) if a date/datetime, timedelta(minutes=15) if a time (or if max_value - min_value < 1 day)

format (str or None)

A printf-style format string controlling how the interface should display numbers. This does not impact the return value. Formatter for int/float supports: %d %e %f %g %i Formatter for date/time/datetime uses Moment.js notation: https://momentjs.com/docs/#/displaying/format/

key (str or int)

An optional string or integer to use as the unique key for the widget. If this is omitted, a key will be generated for the widget based on its content. Multiple widgets of the same type may not share the same key.

help (str)

An optional tooltip that gets displayed next to the slider.

on_change (callable)

An optional callback invoked when this slider's value changes.

args (tuple)

An optional tuple of args to pass to the callback.

kwargs (dict)

An optional dict of kwargs to pass to the callback.

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