how to convert string

[Gary Herron]

diffuser78 at gmail.com wrote:

>I want to print number 0 to 9 in one line like this
>0 1 2 3 4 5 6 7 8 9
>
>if I do like this, it prints in different lines
>
>for i in xrange(10):
>    print i
>  
>
A comma at the end of the print will do what you want:
    for i in xrange(10):
        print i,


>so i tried like this
>
>str = ""
>for i in xrange(10):
>    str = i + " "
>print str
>
>but i want to know how convert int i to string.
>  
>
str(i) will do what you want and so will the "%" operator.  However, you 
sample code masks the builtin "str" function by creating a variable with 
the same name (plus you had another error in that line), so try this:

    s = ""
    for i in xrange(10):
        s = s + str(i) + " "
    print s

A shortcut for the line in the loop is
    s += str(i) + " "

Also note that appending to string is slow while appending to lists is not. So try build a list and turning it into a string with the string "join" method like this
    l = []
    for i in xrange(10):
        l.append(str(i)
    print " ".join(l)

Finally, you can build the list with a list comprehension construct
    l = [str(i) for i in xrange(10)]
    print " ".join(l)

You could also combine the above two lines into one -- that would be shorter, but probably not clearer.

Cheers,
Gary Herron



>Every help is appreciate.
>
>  
>