Mapping List of Strings to floating numbers - Python

Question

I need to map country list in to floating number list.

country_list = ['China','India','Japan',...etc]

Mapping should be like following. (Just an example).

China  0.1
India  0.2
Japan  0.3
....   ...
....   1.0
....   1.1
....   ...
....   2.0

What is the most quick way doing this with Python.

Related Questions : Python Map List of Strings to Integer List

Answer 1

Generate the floats, zip the two lists.

>>> country_list = ['China', 'India', 'Japan']
>>> numbers = list(x/10.0 for x in range(1, len(country_list)+1))
>>> zip(country_list, numbers)
[('China', 0.1), ('India', 0.2), ('Japan', 0.3)]

>>> print "\n".join("{} {}".format(x, y) for x, y in _)
China 0.1
India 0.2
Japan 0.3

EDIT: replaced the float(x)*0.1 to a division.