scanpypi: fix code style

Fix these warnings:
E101 indentation contains mixed spaces and tabs
E128 continuation line under-indented for visual indent
E231 missing whitespace after ','
E261 at least two spaces before inline comment
E302 expected 2 blank lines, found 1
E305 expected 2 blank lines after class or function definition, found 1
W191 indentation contains tabs

Ignore these warnings:
E402 module level import not at top of file

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>