ANSI Escape Sequences

[xioren]

Is there something special I need to do do use ANSI codes in Nim? This works in 
Python "\033[32mtesting\033[00m" but in Nim "![32mtesting![00m" gets written to 
stdout instead. I assume it has to do with the compiler warning "Warning: octal 
escape sequences do not exist; leading zero is ignored [OctalEscape]" but I am 
not sure what the compiler is trying to say here; they don't exist or they 
don't exist in Nim?