String formatting (%)

[vincent wehren]

Pascal wrote:
> Hello,
> I've a float number 123456789.01 and, I'de like to format it like this
> "123 456 789.01".
> Is this possible with % character?

The following should do what you want, although the commafy_float I 
quickly added is probably a little naive:


def commafy(numstring, thousep=","):
     """
     Commafy the given numeric string numstring

     By default the thousands separator is a comma
     """
     numlist = list(numstring)
     numlist.reverse()
     tmp = []
     for i in range(0, len(numlist), 3):
         tmp.append("".join(numlist[i:i+3]))
     numlist = thousep.join(tmp)
     numlist = list(numlist)
     numlist.reverse()
     return "".join(numlist)

def commafy_float(flStr, thousep=","):
     whole, dec = flStr.split(".")
     return ".".join([commafy(whole, thousep=thousep)
                                   , dec])

if __name__ == "__main__":

     units = "56746781250450"
     unitsWithThouSeps = commafy(units)
     print unitsWithThouSeps
     aFloatAsString = "1128058.23"
     aFloatAsStringWithThouSeps = commafy_float(aFloatAsString
                                                ,thousep=" ")
     print aFloatAsStringWithThouSeps


Regards

-- Vincent Wehren