Resolve linting issues of all Python code #2

src\ch01\03.py:3:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\03.py:4:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\04.py:6:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\04.py:9:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\05.py:3:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\06.py:8:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\06.py:12:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\07.py:5:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\12.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\13.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\13.py:7:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\16.py:2:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\16.py:4:17: B007 Loop control variable 'm' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\20.py:6:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\23.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\24.py:2:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\24.py:6:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\24.py:16:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\25.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\26.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\26.py:8:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\27.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\27.py:10:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\28.py:2:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\28.py:5:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\29.py:2:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\29.py:5:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\29.py:13:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch01\29.py:20:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch02\11.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch02\11.py:7:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch02\11.py:11:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch02\19.py:6:9: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch02\20.py:3:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch03\05.py:3:9: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch03\06.py:3:9: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch03\12.py:4:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch03\16.py:3:9: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch03\19.py:4:13: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch03\22.py:109:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\04.py:5:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\11.py:32:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\12.py:13:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\17.py:17:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\19.py:20:9: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\20.py:9:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\20.py:17:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\21.py:8:9: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\21.py:14:9: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\27.py:4:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\27.py:30:5: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\27.py:33:5: B007 Loop control variable 'k' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\28.py:5:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch04\28.py:10:9: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch05\02.py:4:5: B007 Loop control variable 'j' not used within the loop body. If this is intended, start the name with an underscore.
src\ch05\03.py:5:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.
src\ch06\08.py:12:5: B007 Loop control variable 'i' not used within the loop body. If this is intended, start the name with an underscore.