Tkinter OptionMenu to show dropdown list box with options from List and dictionary values to users

OptionMenu provides options to the user to select one from the available list. It is also known as dropdown list box.
We can display a list of options to the user for their selection. The options can be given by directly writing as the options while declaring the optionmenu.
om1=tk.OptionMenu(my_w,options,'HTML','PHP','Phthon')
We can use one list for storing the options as elements and unpack the same list to display the optionmenu.
my_list=['Php','MySQL','Python','HTML']
options=tk.StringVar(my_w)
l1=tk.Label(my_w,text="Select One")

om1=tk.OptionMenu(my_w,options,*my_list)
While assigning the elements we have unpacked the list.
We can use one dictionary values also as options of the option menu.
my_dict1={1:'Fruits',2:'Colours',3:'Games',4:'Vehicles'}
options=tk.StringVar(my_w)
l1=tk.Label(my_w,text="Select One")

[PANDURANG]

I want to jump on word by click letter on keyboard if I have 100 options