find missing numbers in series using python

Vote count:

0

I have a file with numbers and I need to find the missing ones.

cat head.txt
7045000000
7045000001
7045000003

As you can see the number 7045000002 is missing. This code is not working:

check=int(7044999999)
with open('head.txt' , 'r') as f:
    for line in f:
        myl = line[:5]
        if myl == '70450':
            if int(line) == check+1:
                check = int(line)
            else:
                check = int(line)+1
                print check

The numbers should start with 70450 and there the "myl" variable is necessary.

asked 24 secs ago

shantanuo

5,412

find missing numbers in series using python