Optional parameters: Difference between revisions

=={{header|Python}}==

Using a pretty-printer for the table

<lang python>>>> def printtable(data):

for row in data:

print ' '.join('%-5s' % ('"%s"' % cell) for cell in row)

>>> def sorttable(table, ordering=None, column=0, reverse=False):

return sorted(table, cmp=ordering, key=lambda row: row[column], reverse=reverse)

>>> data = [["a", "b", "c"], ["", "q", "z"], ["zap", "zip", "Zot"]]

>>> printtable(data)

"a" "b" "c"

"" "q" "z"

"zap" "zip" "Zot"

>>> printtable( sorttable(data) )

"" "q" "z"

"a" "b" "c"

"zap" "zip" "Zot"

>>> printtable( sorttable(data, column=2) )

"zap" "zip" "Zot"

"a" "b" "c"

"" "q" "z"

>>> printtable( sorttable(data, column=1) )

"a" "b" "c"

"" "q" "z"

"zap" "zip" "Zot"

>>> printtable( sorttable(data, column=1, reverse=True) )

"zap" "zip" "Zot"

"" "q" "z"

"a" "b" "c"

>>> printtable( sorttable(data, ordering=lambda a,b: cmp(len(b),len(a))) )

"zap" "zip" "Zot"

"a" "b" "c"

"" "q" "z"

>>> </lang>