using if/elif/else to translate str [on hold]

I am noob in python, and I am making simple script to translate single variable into str of integers.

Here's my code for reference.

COURTNAME="A"

if str(COURTNAME)=="A":
    COURTNO=="000201"
elif str(COURTNAME)=="B":
    COURTNO=="000214"
elif str(COURTNAME)=="F":
    COURTNO=="000600"
elif str(COURTNAME)=="G":
    COURTNO=="000270"
elif str(COURTNAME)=="H":
    COURTNO=="000300"
elif str(COURTNAME)=="I":
    COURTNO=="000400"
elif str(COURTNAME)=="J":
    COURTNO=="000411"
elif str(COURTNAME)=="K":
    COURTNO=="000420"
elif str(COURTNAME)=="L":
    COURTNO=="000500"
elif str(COURTNAME)=="M":
    COURTNO=="000520"
elif str(COURTNAME)=="N":
    COURTNO=="000530"
else:
    COURTNO==COURTNAME

print(COURTNO)

This did not yield "000201."

What should I do to get 000201?

Any change or improvement I can make is always welcome.