Ok i have these commands used in batch and i wanted to know the commands in python that would have a similar affect, just to be clear i dont want to just use **os.system("command here")** for each of them. For example in batch if you wanted a list of commands you would type **help** but in python you would type **help()** and then **modules**... I am not trying to use batch in a python script, i just wanna know the similarities in both languages. Like in english you say " Hello" but in french you say "Bonjour" not mix the two languages. (heres the list of commands/functions id like to know:

1. change the current directory
2. clear the screen in the console
3. change the prompt to something other than **>>>**
4. how to make a loop function
5. redirections/pipes
6. start an exteral program (like notepad or paint) from within a script
7. how to call or import another python script
8. how to get help with a specific module without having to type **help()**

@8: (in batch it would be **command /?**)

**EDITED COMPLETELY**

Thanks in Adnvance!