reg: playing with the list

[kaustubh joshi]

Hey all,
I am new here and new to python too. In general new to programming .
I was working on aproblem.
and need some help.
I have a list of numbers say [2,3,5,6,10,15]
which all divide number 30.
Now i have to reduce this list to the numbers which are prime in number.
i.e.
[2,3,5]
can somebody suggest?
K
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what's the command for (cd ..) in python

[kaustubh joshi]

Hello friends,
 How do we carry out the command "*cd ..*" in
python?

My problem is :
I have a set of folders say m=1,2,3,4. In each of these folders, I have
subfolders with common name say m_5,m_6,m_7,m_8. In each of these subfolder,
there is a file which I have edit.
  1
 23
   4
 |
  |  |
|

--
  1_5, 1_6, 1_7, 1_8   2_5 ,2_6,
2_7, 2_8   3_5, 3_6, 3_7, 3_8  4_5, 4_6, 4_7, 4_8

That is how I designed it

When I run my script, it follows the route 1 ---> 1_5-> do the edit job
in the file. Now it need to change the  subfolder from 1_5 to 1_6, which is
not happening.

I created the folders using variable like m for folder taking values 1,2,3,4
and m_n for subfolders with n=5,6,7,8.

I am trying with os.chdir(path), but stuck with how to use m_n in it.

What I am missing at the moment is something that do the job "cd .." does.

Any help


Karan
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