Streamlit slider with variable number of arguments

🎈 Using Streamlit
1

I would like to customise the st.slider length based on the number of URLs a user inputs, using the slider so users can view the output for each inputted URL one at a time. I was hoping to use this code to create the variable length slider:

choices = []
for i in range(len(image_urls_list)):
    choices.append(i)
choice = st.slider('View results for image:', choices)

However, I get this error:

StreamlitAPIException: Slider value should either be an int/float or a list/tuple of int/float

It would be great if the slider can be used as an organisational feature!

Thanks,

Darcey

2 Likes
2

I’m still trying to understand what is it that you want to show with the slider. Can you explain it better?
Regardless, the reason for your error, is because choices is a list of integers. If you want to pass the number of items in choices, a simple len(choices) would do the trick. Just like passing len(image_urls_lists), but that’s probably because I haven’t fully understood the purpose.

3

seems your list contains others than interger or float, if not you can set your slider by an other way :

min_val = 0
max_val = len(max_value)

st.slider(‘x’,
min_value=min_val ,
max_value=max_val ,
step=1)