如何创建由两条不同数据线的数据组成的 integer？

Question

I am trying to define the variable ini_f in my code below as the last three characters of the line with 'CAFE' being the most significant digits and the second, third, and forth characters of the line following the CAFE line to be the three least significant digits.

with open('data.txt', "r") as dataset:
    for line in dataset:
        if 'CAFE' in line:
            ini_f = line[5:], line+1[1:4]
            print(ini_f)
        else: 
            pass

Answer 1

You can keep track if you found 'CAFE' in a line with the help of a true/false variable. If you did not find 'CAFE' in a line, you can set it back to false. This is the example code:

with open('data.txt', 'r') as dataset:
    ini_f = ''
    found_cafe = False
    for line in dataset:
        if found_cafe:
            ini_f += line[-4:-1]
            print(ini_f)
        if 'CAFE' in line:
            ini_f = line[:3]
            found_cafe = True
        else:
            found_cafe = False
            ini_f = ''

I used this file to test the functionality:

Loremipsumdolorsitamet
conseteturCAFEsadipscingelitr
seddiamnonumyeirmodtempor
inviduntutlaboreetdolore
magnaaliquyameratseddiamvoluptua
AtveroCAFEeosetaccusametjusto
duodoloreseCAFEtearebum
Stetclitakasdgubergren
noseatakimatasanctus

Giving this output:

conpor
Atvbum
duoren

We extract the first three digits with line[:3] and the last 3 readable digits with line[-4:-1], because the last digit is a newline (\n).