[Tutor] changing 2x3 matrix to 3x2 matrix - using lists

[Srinivas Iyyer]

Dear group, 
 I have a huge list of data. This was obtained using R
through Rpy. 

the data resembles a 10K (row) x 30 (column) matrix. 

I processed the data column wise( obtained median
values for duplicated rows).

Now I am left with 500 rows and 30 columns. 

I want to print the same way. 


A snippet:

>>> a = """apple\tboy\tcat\ndog\tegg\tfox\n"""
>>> ab = a.split('\n')
>>> for m in ab:
	cols = m.split('\t')
	print cols

	
['apple', 'boy', 'cat']
['dog', 'egg', 'fox']
########################################
# Here I processed the data and assuming nothing
changed in the snippet, I want to print :
##
apple   dog
boy     egg
cat     fox

How can I do that?
I tries a different way below. If there are two lists,
I could use 'zip' method.  However, since script is
running over a loop of 30 columns, I have no clue how
can I use zip dynamically.
###################################

>>> for m in result:
	for i in range(len(m)):
		print m[i]+'\t'+m[i+1]

		
apple	dog

Traceback (most recent call last):
  File "<pyshell#80>", line 3, in -toplevel-
    print m[i]+'\t'+m[i+1]
IndexError: list index out of range





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