how i govern way python? os.system fails due spaces path

i have python book needs govern an outmost program, nonetheless reason fails.

if i have following script:

import os;
os.system("c:\\temp\\a b c\\notepad.exe");
raw_input();

then fails following error:

'c:\temp\a' famous an middle outmost command, operable way collection file.

if i evade way quotes:

import os;
os.system('"c:\\temp\\a b c\\notepad.exe"');
raw_input();

then works. however, i supplement parameter, stops operative again:

import os;
os.system('"c:\\temp\\a b c\\notepad.exe" "c:\\test.txt"');
raw_input();

what right proceed govern way wait complete? i need review cost it, visible way does office following only exits, nonetheless i need wait complete.

also note, relocating way non-spaced route an choice either.

this does work either:

import os;
os.system("'c:\\temp\\a b c\\notepad.exe'");
raw_input();

note replaced single/double quotes.

with but parameter notepad here, fails blunder message

the filename, office name, volume tag syntax incorrect.

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