python - How to extend pretty print module to tables? -

i have pretty print module, prepared because not happy pprint module produced zillion lines list of numbers had 1 list of list. here example use of module.

    >>> a=range(10)     >>> a.insert(5,[range(i) in range(10)])     >>>     [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 this:

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

here 1 fixed text table printing in pretty print module:

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

have better alternative code generalized enough pretty printing module?

what found kind of regular cases after posting question module: prettytable simple python library displaying tabular data in visually appealing ascii table format

if you're looking nice formatting matrices, numpy's output looks great right out of box:

from numpy import * print array([[i + j in range(10)] j in range(10)]) 

output:

[[ 0  1  2  3  4  5  6  7  8  9]  [ 1  2  3  4  5  6  7  8  9 10]  [ 2  3  4  5  6  7  8  9 10 11]  [ 3  4  5  6  7  8  9 10 11 12]  [ 4  5  6  7  8  9 10 11 12 13]  [ 5  6  7  8  9 10 11 12 13 14]  [ 6  7  8  9 10 11 12 13 14 15]  [ 7  8  9 10 11 12 13 14 15 16]  [ 8  9 10 11 12 13 14 15 16 17]  [ 9 10 11 12 13 14 15 16 17 18]]