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Pictures from Sept. 1999

The views expressed in articles on this site are those of their authors.

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SCOUG was there!


Copyright 1998-2024, Southern California OS/2 User Group. ALL RIGHTS RESERVED.

SCOUG, Warp Expo West, and Warpfest are trademarks of the Southern California OS/2 User Group. OS/2, Workplace Shell, and IBM are registered trademarks of International Business Machines Corporation. All other trademarks remain the property of their respective owners.

The Southern California OS/2 User Group
USA

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


The Southern California OS/2 User Group
P.O. Box 26904
Santa Ana, CA 92799-6904, USA

Copyright 2001 the Southern California OS/2 User Group. ALL RIGHTS RESERVED.

SCOUG, Warp Expo West, and Warpfest are trademarks of the Southern California OS/2 User Group. OS/2, Workplace Shell, and IBM are registered trademarks of International Business Machines Corporation. All other trademarks remain the property of their respective owners.