python3

class Solution:
def getHint(self, secret, guess):
"""
:type secret: str
:type guess: str
:rtype: str
"""
secret1=set(secret)
secret2=list(secret1)
P='0123456789'
print(secret1)
g={}
m=0
for i in secret2:
g[i]=0
for i in list(secret):
w1=P.find(i)
g[i]=g[i]+1
print(g)
guess1=set(guess)
guess2=list(guess1)
print(guess1)
G={}
M=0
for i in guess2:
G[i]=0
for i in list(guess):
w1=P.find(i)
G[i]=G[i]+1
print(g)
f=0
F=0
for i in G:
if i in g:
f=f+min(g[i],G[i])
for i in range(len(list(secret))):
if list(secret)[i]==list(guess)[i]:
f=f1
F=F+1
W='%sA%sB'%(F,f)
return(W)