[Tutor] Trying to write a string formatting demo

[Brian van den Broek]

Dick Moores said unto the world upon 2005-04-10 03:38:
> I'm trying to write a string formatting demo, just for things like 
> %.4f,  %.3e, and %.3g.
> 
> Here's what I have, but of course it doesn't work. What should the print 
> statement be?
> 
> ========================
> x = raw_input("enter a float: ")
> if x == "":
>     print "x will be the default 1234.56789"
>     x = 1234.56789
> else:
>     x = float(x)
> 
> s = raw_input("enter a float format string such as '.4f' or '.3e': ")
> 
> print "%f formatted with '%s' is %s" % (x,s,x)
> ==========================
> 
> Thanks,
> 
> Dick Moores
> rdm at rcblue.com

Hi Dick,

why not replace th last line with the following 2:

print_value = ('%' + s ) %x
print "%f formatted with '%s' is %s" %(x, s, print_value)

HTH,

Brian vdB