You can do the following if you already know the number of fields of the input:
client_name = raw_input("Enter you first and last name: ")
first_name, last_name = client_name.split()
and in case you want to iterate through the fields separated by spaces, you can do the following:
some_input = raw_input() # This input is the value separated by spaces
for field in some_input.split():
print field # this print can be replaced with any operation you'd like
# to perform on the fields.
A more generic use of the "split()" function would be:
result_list = some_string.split(DELIMITER)
where DELIMETER is replaced with the delimiter you'd like to use as your separator, with single quotes surrounding it.
An example would be:
result_string = some_string.split('!')
The code above takes a string and separates the fields using the '!' character as a delimiter.