10 taken row of content files 68-

Using generators takes text:

DEF Blocks (F obj): 
    Block = [] 
    counter = 0
     for Line in F obj: 
        block.append (Line) 
        counter + =. 1
         IF counter == 10 :
             the yield Block   # return intermediate results, the next value, continuing from here to performing at 
            Block = [] 
            counter = 0
     IF Block:   # some files not the last row 10 
        the yield Block 

IF  the __name__ == ' __main__ ' : 
    F obj= open('./tmp/shop.data')  
    for lines in blocks(fobj):
        print(lines)
        print()
    fobj.close()

Output results:

['root:x:0:0:root:/root:/bin/bash\n', 'daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin\n', 'bin:x:2:2:bin:/bin:/usr/sbin/nologin\n', 'sys:x:3:3:sys:/dev:/usr/sbin/nologin\n', 'root:x:0:0:root:/root:/bin/bash\n', 'daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin\n', 'bin:x:2:2:bin:/bin:/usr/sbin/nologin\n', 'root:x:0:0:root:/root:/bin/bash\n', 'daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin\n', 'bin:x:2:2:bin:/bin:/usr/sbin/nologin\n']

['root:x:0:0:root:/root:/bin/bash\n', 'daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin\n', 'bin:x:2:2:bin:/bin:/usr/sbin/nologin\n', '\n', '\n', '\n', '\n', '\n']

Shop.data text content, a total of 13 lines:

 1 root:x:0:0:root:/root:/bin/bash
 2 daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
 3 bin:x:2:2:bin:/bin:/usr/sbin/nologin
 4 sys:x:3:3:sys:/dev:/usr/sbin/nologin
 5 root:x:0:0:root:/root:/bin/bash
 6 daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
 7 bin:x:2:2:bin:/bin:/usr/sbin/nologin
 8 root:x:0:0:root:/root:/bin/bash
 9 daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
10 bin:x:2:2:bin:/bin:/usr/sbin/nologin
11 root:x:0:0:root:/root:/bin/bash
12 daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
13 bin:x:2:2:bin:/bin:/usr/sbin/nologin