How to fix column calculation in Python readline if using color prompt

I open info readline and found:

 -- Function: int rl_expand_prompt (char *prompt)     Expand any special character sequences in PROMPT and set up the     local Readline prompt redisplay variables.  This function is     called by `readline()'.  It may also be called to expand the     primary prompt if the `rl_on_new_line_with_prompt()' function or     `rl_already_prompted' variable is used.  It returns the number of     visible characters on the last line of the (possibly multi-line)     prompt.  Applications may indicate that the prompt contains     characters that take up no physical screen space when displayed by     bracketing a sequence of such characters with the special markers     `RL_PROMPT_START_IGNORE' and `RL_PROMPT_END_IGNORE' (declared in     `readline.h'.  This may be used to embed terminal-specific escape     sequences in prompts.

As text suggested I searched for RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE definition in readline.h and found next:

/* Definitions available for use by readline clients. */#define RL_PROMPT_START_IGNORE  '\001'#define RL_PROMPT_END_IGNORE    '\002'

So I put appropriate changes to my ~/.pystartup:

    green='\001\033[32m\002'    red='\001\033[31m\002'    reset='\001\033[0m\002'

and now all work fine!!!

For a better python shell experience, I'd recommend you to use either ipython or bpython.