Doubt2

Question

max= 0
min= 0
while True :
sval = input('Enter a nunber:')
if sval=='done' :
break
try:
fval = float(sval)
except :
print('Invalid input')
continue
#print(fval)
fval = float(sval)
# check for max value
if max<fval
max= fval
# check for min value
if min is none
min= fval
elif fval < min
min= fval

#print('All done')
print('Maximum is ',max)
print('Minimun is ',min)
In this code I am getting error in line 15 ,kindly help me.