Python : took time to fix a silly miss in step if binnum[i] == '1' .. missed quotes

bin_num = ''
temp_num = n
while temp_num > 0:
    bin_num = str(temp_num % 2) + bin_num
    temp_num //= 2

count = 0
max_count = 0
i=0
for i in range(len(bin_num)):
    if bin_num[i] == '1':
        count += 1
        if count > max_count:
            max_count = count
    else:
        count = 0

print(max(max_count, count))