REXX vs. Python Examples

For use with the presentation of REXX and Python Side-by-Side.
 

Example type	REXX	Python
Block	if <condition> then     do         Stmt 1         Stmt 2         if <another condition> then           do              Stmt 21              Stmt 22           end         Stmt 3     end Stmt 4	if <condition> :         Stmt 1         Stmt 2         if <another condition>:            Stmt 21            Stmt 22         Stmt 3 Stmt 4
Looping	count = 1 do while count < 100     count = count + count end count = 1 do until count >= 100     count = count + count end do 3   say "Again" end pull HowMany do HowMany   say "Again" end do i = 1 to 9 by 3    say  "i is" i end	count = 1 while count < 100 :     count = count + count while 1 == 1:      print "Help, I'm stuck in a loop." for number in range(1,100):     print "Hello, world!"     print "Just", 100 - number, "more to go..." print "Hello, world" print "That was the last one... Phew!" Note: The function range returns a list of numbers in the range given (including the first, excluding the last... In this case, [1..99]). for food in "spam", "eggs", "tomatoes":    print "I love", food This means: For every element in the list "spam", "eggs", "tomatoes", print that you love it. The block inside the loop is executed once for every element, and each time, the  current element is assigned to the variable  food (in this case).
Control	number = <some random number> guess = number + 1 do while guess \= number     say "Guess a number: "     pull guess     if guess > number then         say "Too high"     else if guess < number then             say "Too low" end say "Just right"	number = <some random number> guess = number + 1 while guess != number :      guess = input ("Guess a number: ")     if guess > number :         print "Too high"     elif guess < number :             print "Too low" print "Just right"
String Operations	string slicer x = rexx substr(x,2,2) returns: xx substr(x,1,1) returns: r	string slicer x = 'Python' print x[0] prints: P print x[2] prints: t print x[-1] prints: n print x[2:4] prints: th
Special Variables

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