How to extend pretty print module to tables?

Question

I have the pretty print module, which I prepared because I was not happy the pprint module produced zillion lines for list of numbers which had one list of list. Here is example use of my module.

    >>> a=range(10)
    >>> a.insert(5,[range(i) for i in range(10)])
    >>> a
    [0, 1, 2, 3, 4, [[], [0], [0, 1], [0, 1, 2], [0, 1, 2, 3], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7, 8]], 5, 6, 7, 8, 9]
    >>> import pretty
    >>> pretty.ppr(a,indent=6)

    [0, 1, 2, 3, 4, 
          [
            [], 
            [0], 
            [0, 1], 
            [0, 1, 2], 
            [0, 1, 2, 3], 
            [0, 1, 2, 3, 4], 
            [0, 1, 2, 3, 4, 5], 
            [0, 1, 2, 3, 4, 5, 6], 
            [0, 1, 2, 3, 4, 5, 6, 7], 
            [0, 1, 2, 3, 4, 5, 6, 7, 8]], 5, 6, 7, 8, 9]

Code is like this:

""" pretty.py prettyprint module version alpha 0.2
    mypr: pretty string function
    ppr:  print of the pretty string
    ONLY list and tuple prettying implemented!
"""
def mypr(w, i = 0, indent = 2, nl = '\n') :
    """ w = datastructure, i = indent level, indent = step size for indention """
    startend = {list : '[]', tuple : '()'}
    if type(w) in (list, tuple) :
        start, end = startend[type(w)]
        pr = [mypr(j, i + indent, indent, nl) for j in w]
        return nl + ' ' * i + start + ', '.join(pr) + end
    else :  return repr(w)

def ppr(w, i = 0, indent = 2, nl = '\n') :
    """ see mypr, this is only print of mypr with same parameters """
    print mypr(w, i, indent, nl)

Here is one fixed text for table printing in my pretty print module:

## let's do it "manually"
width = len(str(10+10))
widthformat = '%'+str(width)+'i'
for i in range(10):
    for j in range(10):
        print widthformat % (i+j),
    print

Have you better alternative for this code to be generalized enough for the pretty printing module?

What I found for this kind of regular cases after posting the question is this module: prettytable A simple Python library for easily displaying tabular data in a visually appealing ASCII table format

Answer 1

My answer to this kind of regular cases would be to use this module: prettytable A simple Python library for easily displaying tabular data in a visually appealing ASCII table format