In Python I'd like to make a code to show the following table from a double array

Question

I'd like to make a code to obtain the following result.

Input: mylist=[[-1,3,111,'b'],[0,'a',1],[-2,1]]
Output:  -1         111    'b'
          3   'a'    1
         -2    1

I tried to make the code as follows.

blank1=' '
for x in mylist:
    for y in x:
         print blank1 if y==0 else y,
    print
print 

But the result is not what I want. I'd like to make each entry align to center Where should I fix it?

Answer 1

Use str.center

for x in mylist:
    s=""
    for y in x:
        s+=str(" " if y==0 else y).center(10)
    print s

Change 10 to whatever width you want.

If you really want those qoutes you can use this:

s+=str(" " if y==0 else "'"+y+"'" if isinstance(y, basestring) else y).center(10)

Output of this code with the quote twitch using your array:

-1                 111       'b'    
         'a'        1     
-2        1