Change options from Select from callback

Community Support
1

Hi,

I am trying to change the options from a selection toolbox from a callback using the bokeh server.

My code:

from bokeh.io import curdoc

from bokeh.models import VBox, Select

def update(attrname, old, new):

var1 = select1.value

varA = int(var1) *5.0

varB = int(var1) *3.0

varC = int(var1) *8.0

newVar = [str(varA), str(varB), str(varC)]

select2.set(‘options’, newVar);

categories=[“1”,“2”,“3”]

select1 = Select(title=“Cat1”, value=categories[0], options=categories)

select1.on_change(‘value’, update)

select2 = Select(title=“Cat2”, value="")

layout = VBox(select1,select2)

#add to document

curdoc().add_root(layout)

my error:

set() takes 1 positional argument but 3 were given.

Could someone please tell me the correct way to do this?

Regards,

Rakesh

2

I found the solution, see code below:

from bokeh.io import curdoc

from bokeh.models import VBox, Select

def update(attrname, old, new):

var1 = select1.value

varA = int(var1) *5.0

varB = int(var1) *3.0

varC = int(var1) *8.0

newVar = [str(varA), str(varB), str(varC)]

select2.options = newVar

categories=[“1”,“2”,“3”]

select1 = Select(title=“Cat1”, value=categories[0], options=categories)

select1.on_change(‘value’, update)

select2 = Select(title=“Cat2”, value=“”)

layout = VBox(select1,select2)

#add to document

curdoc().add_root(layout)

···

On Monday, May 9, 2016 at 5:52:09 PM UTC+2, Raki wrote:

Hi,

I am trying to change the options from a selection toolbox from a callback using the bokeh server.

My code:

from bokeh.io import curdoc

from bokeh.models import VBox, Select

def update(attrname, old, new):

var1 = select1.value

varA = int(var1) *5.0

varB = int(var1) *3.0

varC = int(var1) *8.0

newVar = [str(varA), str(varB), str(varC)]

select2.set(‘options’, newVar);

categories=[“1”,“2”,“3”]

select1 = Select(title=“Cat1”, value=categories[0], options=categories)

select1.on_change(‘value’, update)

select2 = Select(title=“Cat2”, value=“”)

layout = VBox(select1,select2)

#add to document

curdoc().add_root(layout)

my error:

set() takes 1 positional argument but 3 were given.

Could someone please tell me the correct way to do this?

Regards,

Rakesh

3

Thanks so much for
sharing.

···

On 5/10/16 8:57 AM, Raki wrote:

I found the solution, see code below:

from bokeh.io import curdoc

from bokeh.models import VBox, Select

def update(attrname, old, new):

var1 = select1.value

varA = int(var1) *5.0

varB = int(var1) *3.0

varC = int(var1) *8.0

newVar = [str(varA), str(varB), str(varC)]

select2.options = newVar

categories=[“1”,“2”,“3”]

        select1 = Select(title="Cat1", value=categories[0],

options=categories)

select1.on_change(‘value’, update)

select2 = Select(title=“Cat2”, value=“”)

layout = VBox(select1,select2)

#add to document

curdoc().add_root(layout)

      On Monday, May 9, 2016 at 5:52:09 PM UTC+2, Raki wrote:

Hi,

            I am trying to change the options from a selection

toolbox from a callback using the bokeh server.

My code:

from bokeh.io import curdoc

from bokeh.models import VBox, Select

def update(attrname, old, new):

var1 = select1.value

varA = int(var1) *5.0

varB = int(var1) *3.0

varC = int(var1) *8.0

newVar = [str(varA), str(varB), str(varC)]

select2.set(‘options’, newVar);

categories=[“1”,“2”,“3”]

              select1 = Select(title="Cat1", value=categories[0],

options=categories)

select1.on_change(‘value’, update)

select2 = Select(title=“Cat2”, value=“”)

layout = VBox(select1,select2)

#add to document

curdoc().add_root(layout)

my error:

set() takes 1 positional argument but 3 were given.

            Could someone please tell me the correct way to do

this?

Regards,

Rakesh

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4

Rakesh,

On the JS side, the .set method is called exactly as you have given it. But on the python side, it only accepts keyword argument pairs. You'd need to call it like:

  select2.set(options=newVar)

Thanks,

Bryan

···

On May 9, 2016, at 4:52 PM, Rakesh Partapsing <[email protected]> wrote:

Hi,

I am trying to change the options from a selection toolbox from a callback using the bokeh server.
My code:

from bokeh.io import curdoc
from bokeh.models import VBox, Select

def update(attrname, old, new):
    var1 = select1.value
    varA = int(var1) *5.0
    varB = int(var1) *3.0
    varC = int(var1) *8.0
    newVar = [str(varA), str(varB), str(varC)]
    select2.set('options', newVar);

categories=["1","2","3"]

select1 = Select(title="Cat1", value=categories[0], options=categories)
select1.on_change('value', update)
select2 = Select(title="Cat2", value="")

layout = VBox(select1,select2)

#add to document
curdoc().add_root(layout)

my error:
set() takes 1 positional argument but 3 were given.

Could someone please tell me the correct way to do this?

Regards,
Rakesh

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