autoflake.py
def break_up_import(line):
    """Return line with imports on separate lines."""
    assert '\\' not in line
    assert '(' not in line
    assert ')' not in line
    assert ';' not in line
    assert '#' not in line
    assert not line.lstrip().startswith('from')

    newline = get_line_ending(line)
    if not newline:
        return line

    (indentation, imports) = re.split(pattern=r'\bimport\b',
                                      string=line, maxsplit=1)

    indentation += 'import '
    assert newline

    return ''.join([indentation + i.strip() + newline
                    for i in sorted(imports.split(','))])
def break_up_import(line):
    """Return line with imports on separate lines."""
    assert '\\' not in line
    assert '(' not in line
    assert ')' not in line
    assert ';' not in line
    assert '#' not in line
    assert not line.lstrip().startswith('from')

    newline = get_line_ending(line)
    if not newline:
        return line

    (indentation, imports) = re.split(pattern=r'\bimport\b',
                                      string=line, maxsplit=1)

    indentation += 'import '
    assert newline

    return ''.join([indentation + i.strip() + newline
                    for i in sorted(imports.split(','))])
Return line with imports on separate lines.