Fix pylama C901 errors in CLI (blocks too complex, move some code to functions)

[BBaoVanC]

Pylama outputs the following:

'Loop 42' is too complex (11) [mccabe]

{
"resource": "/d:/github-repos/NameGenerator/namegen.py",
"owner": "python",
"code": "C901",
"severity": 4,
"message": "'Loop 42' is too complex (11) [mccabe]",
"source": "pylama",
"startLineNumber": 42,
"startColumn": 1,
"endLineNumber": 42,
"endColumn": 1
}

'If 75' is too complex (12) [mccabe]

{
"resource": "/d:/github-repos/NameGenerator/namegen.py",
"owner": "python",
"code": "C901",
"severity": 4,
"message": "'If 75' is too complex (12) [mccabe]",
"source": "pylama",
"startLineNumber": 75,
"startColumn": 1,
"endLineNumber": 75,
"endColumn": 1
}