plotly_dropdowns

dropdowns = []     #Initialize as an empty list
i = 0   #Intialize a counter

#Iterate through df_dict
for key,value in df_dict.items():
    #add a bar trace to the figure for each indicator
    fig.add_trace(go.Bar(name=key,
                         x=value.iloc[:,0],    #x is the squad name
                         y=value.iloc[:,1],    #y is the value for each indicator
                         visible= (i==0),      #Set only the indicator corresponding to i to be visible as default
                         marker_color="blue"   #Color of the bars
                        )
                 )    
    #args is a list of booleans that tells the buttons which trace to show on click
    args = [False] * len(df_dict)
    args[i] = True
    
    #create a button object for the corresponding indicator
    dropdown = dict(label = key,
                  method = "update",
                  args=[{"visible": args}])
    
    #add the button to our list of buttons
    dropdowns.append(dropdown)
    
    #i is an iterable used to tell our "args" list which value to set to True
    i+=1