Question

I am trying to iterate through a list of float widths that varies.

[10.5, 15.5, 3.7]  <- Randomly generated 

I am using this list of floats to generate spaces between a list of strings I am trying to print. I am doing this via

print ''.join('%*s' %i for i in zip(WIDTHS, LIST_OF_STRINGS))

I am getting the error

TypeError: sequence expected, generator found

Can anyone explain why I am getting this error?

EDIT: Python Version 2.4

Answer 1

I have modified your code in several ways. Now it works here (Python 2.7):

strings = ['a','b','c']
widths1 = [10, 15, 3]
widths2 = [5, 5, 7]
''.join('%*.*s' %i for i in zip(widths1, widths2, strings))

results in

'         a              b  c'

The width value in a format string is not a float, but two ints, separated by a ..