How i can use python to sort the list format
format=["12 sheet","4 sheet","48 sheet","6 sheet", "busrear", "phonebox","train"]
like this way
format =["4 sheet", "6 sheet", "12 sheet", "48 sheet", "busrear, "phonebox", "train"]
edit: If the array is a list of list then how can we do that like this one
format=[[1L, u'12 sheet', 0],[2L, u'4 sheet', 0], [3L, u'48 sheet', 0], [4L, u'6 sheet', 0 [5L, u'Busrear', 0], [6L, u'phonebox', 0], [7L, u'train', 0]]
>>> fmts =["12 sheet","4 sheet","48 sheet","6 sheet", "busrear", "phonebox","train"]
>>> fmts.sort(key=lambda x: (int(x.split(None, 1)[0]) if x[:1].isdigit() else 999, x))
>>> fmts
['4 sheet', '6 sheet', '12 sheet', '48 sheet', 'busrear', 'phonebox', 'train']
format is a builtin function. Do not use it as a variable name. It will shadow the builtin function.
x[:1] to prevent IndexError.
else x instead of else 999?int with str in Python 3.x; causes TypeError: unorderable types: str() < int()
you can create an intermediate array that looks like the following:
intermediate = [(12, "sheet"), (4, "sheet"), ... ]
then you can use sorted on intermediate which will sort by first value by default.
then get back to your format.
