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‎.gitignore‎

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.idea
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*.pyc

‎COLORS.pdf‎

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‎COLORS.txt‎

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‎src/m1e_comments_strings_print.py‎

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# Authors: David Mutchler, Amanda Stouder, Mark Hays, Valerie Galluzzi,
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# Dave Fisher and many others before them.
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print('Hello, World')
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print('hi there')
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print('one', 'two', 'through my shoe')
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print(3 + 9)
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print('3 + 9', 'versus', 3 + 9)

‎src/m2_hello_world.py‎

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print('Hello, World')
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########################################################################
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# This line is a COMMENT -- a note to human readers of this file.
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# When a program runs, it ignores everything from a # (hash) mark
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# to the end of the line with the # mark.
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#
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# We call files that have Python code in them MODULES. Line 1 of this
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# module (look at it now) prints onto the Console the STRING
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# Hello, World
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# Anything surrounded by quote marks (single or double) is a STRING.
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########################################################################
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########################################################################
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#
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# TODO: 1.
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# (Yes, that means for YOU to DO things per these instructions:)
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#
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# Run this module by using the green arrow on the toolbar up top.
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# After running, find the Console tab (to the right) and confirm that
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# Hello, World
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# did indeed get printed (displayed) on the Console.
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#
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########################################################################
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########################################################################
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#
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# TODO: 2.
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# Notice the small horizontal BLUE bars on the scrollbar-like thing
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# on the right. Each blue bar indicates a TODO in this module.
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#
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# a. You can use the blue bars to go from one TODO to the next
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# by clicking on the blue bars. ** Try that now. **
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#
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# b. When you have completed a TODO, you should change the word
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# TODO
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# to
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# DONE.
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# Try it now on line 16 above, and note that its blue bar on
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# the scrollbar-like thing to the right has gone away.
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#
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# If you change TODOs to DONEs like this, you can tell when you have
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# finished all the exercises in a module -- there will be no blue bars
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# left on the scrollbar-like thing to the right.
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#
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# You have now completed TODO #2, so change its TODO on line 26 to DONE
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# (and proceed similarly for all forthcoming TODOs in this course).
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#
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########################################################################
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########################################################################
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#
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# TODO: 3.
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# Add another print statement below the current Line 1.
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# It should print any string that you want (but keep it G-rated!)
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# Test your code by re-running this module and looking at
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# the Console to be sure that your string printed as expected.
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#
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########################################################################
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########################################################################
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#
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# TODO: 4.
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# Add yet another print statement, just below the previous one.
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# This one should print the product of 3,607 and 34,227.
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# Let the computer do the arithmetic for you (no calculators!).
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# You do NOT have to use strings for this, so no quote marks!
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#
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# TEST your code by re-running this module, then asking someone
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# whom you trust: What number did your print display?
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# (HINT: It is an INTERESTING number.) Get help if yours is wrong.
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#
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########################################################################
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########################################################################
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#
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# TODO: 5.
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# Look at the list of files in this project in the
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# PyDev Package Explorer
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# to the left.
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# Note that this file (m2_hello_world.py) has a little black dot
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# to the left of the filename. That means that you have
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# made changes to this file that you have not yet turned in.
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#
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# COMMIT your work (which turns it in) by selecting (clicking on)
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# the file with the black dot (or the entire project if you prefer)
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# and then do SVN ~ Commit... from the SVN menu at the top.
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#
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# Then check that the black symbol beside the file name in the
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# PyDev Package Explorer on the left has gone away.
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# That's how you can tell that you have turned in your work.
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#
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# Oh, one more thing:
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# Do you have any blue bars left on the on the scrollbar-like thing
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# to the right? If so, click on each blue bar and change
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# its TODO to DONE. Then run the file to save it, and COMMIT again.
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#
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# You can COMMIT as often as you like. DO FREQUENT COMMITS.
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#
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########################################################################

‎src/m3_turtles.py‎

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"""
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Demonstrates using OBJECTS via Turtle Graphics.
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Concepts include:
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-- CONSTRUCT an INSTANCE of a CLASS (we call such instances OBJECTS).
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-- Make an object ** DO ** something by using a METHOD.
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-- Reference an object's ** DATA ** by using an INSTANCE VARIABLE.
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Also:
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-- ASSIGNING a VALUE to a NAME (VARIABLE).
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Authors: David Mutchler, Dave Fisher, Valerie Galluzzi, Amanda Stouder,
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their colleagues and PUT_YOUR_NAME_HERE. March 2016.
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"""
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########################################################################
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#
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# TODO: 1.
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# (Yes, that means for YOU to DO things per these instructions:)
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#
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# On Line 13 above, replace PUT_YOUR_OWN_NAME_HERE with your OWN name.
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#
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# BTW, the green lines above form what is called a DOC-STRING.
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# It documents what this module does, in a way that exterior programs
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# can make sense of. It has no other effect on this program.
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#
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########################################################################
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import rosegraphics as rg
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# ----------------------------------------------------------------------
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# Next two lines after this comment set up a TurtleWindow object
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# for animation. The definition of a TurtleWindow is in the
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# rg (shorthand for rosegraphics) module.
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# ----------------------------------------------------------------------
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window = rg.TurtleWindow()
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window.delay(20) # Bigger numbers mean slower animation.
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# ----------------------------------------------------------------------
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# Next two lines make (construct) two SimpleTurtle objects.
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# ----------------------------------------------------------------------
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nadia = rg.SimpleTurtle()
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akil = rg.SimpleTurtle('turtle')
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# ----------------------------------------------------------------------
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# Next lines ask the SimpleTurtle objects to do things:
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# ----------------------------------------------------------------------
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nadia.forward(100)
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nadia.left(90)
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nadia.forward(200)
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akil.right(45)
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akil.backward(50)
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akil.right(60)
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nadia.forward(50)
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nadia.left(135)
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# ----------------------------------------------------------------------
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# Next lines set the pen and speed characteristics of the
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# SimpleTurtle objects. The pen characteristic is itself an object
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# that is constructed, of type Pen.
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# ----------------------------------------------------------------------
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nadia.pen = rg.Pen('blue', 10) # Second argument is the Pen's thickness
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nadia.speed = 10 # big is faster (maxes out about 100), 1 is slowest)
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akil.pen = rg.Pen('red', 30)
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akil.speed = 1
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akil.backward(100)
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nadia.forward(100)
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nadia.left(60)
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nadia.forward(500)
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nadia.speed = 1 # was 10, so much slower now
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nadia.right(120)
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nadia.forward(200)
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########################################################################
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#
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# TODO: 2.
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# (Yes, that means for YOU to DO things per these instructions:)
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#
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# Run this module by using the green arrow on the toolbar up top.
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# A window will pop up and Turtles will move around. After the
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# Turtles stop moving, click anywhere in the window to close it.
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#
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# Then look at Lines 47 to 56. Run again and see if you can tell
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# what each Turtle command does. We call each such command a
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# METHOD.
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#
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# Then look at Lines 63 to 67. Run again and see if you can tell
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# what is different when, for a particular Turtle, its Turtle
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# characteristics:
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# pen speed
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# are assigned a value. We call such characteristics
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# INSTANCE VARIABLES, aka DATA ATTRIBUTES and (in Java) FIELDS.
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#
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# Note especially that although both Turtle objects have the
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# same NAMES for their instance variables, each Turtle has
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# its own VALUES for those instance variables. For example,
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# nadia's Pen has 'blue' as its color while akil's Pen is 'red'.
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#
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# No need for you to write anything for this part of the TODO.
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# Just change the TODO to DONE at Line 80 above, as usual
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# (and also the one at Line 17 if you have not already done that).
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#
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########################################################################
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########################################################################
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#
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# TODO: 3.
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# Add a few more line after line 76 above to make one of the
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# existing Turtles move some more and/or have different
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# characteristics.
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#
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# ** Nothing fancy is required. KISS. **
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# ** A SUBSEQUENT exercise will let you show your creativity. **
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#
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# As always, test by running the module.
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#
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########################################################################
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########################################################################
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#
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# TODO: 4.
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# Lines 41 and 42 CONSTRUCT two SimpleTurtle objects
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# and give those objects NAMES:
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# nadia akil
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# BTW, the definition for what a SimpleTurtle object knows and can do
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# is in the rosegraphics, abbreviated as rg, module, but you do NOT
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# need to (and should not) look at that module for this exercise.
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#
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# After the code that you have already added (from previous TODOs),
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# construct another SimpleTurtle object, naming it whatever you want.
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# Names cannot have spaces or special characters, but they can have
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# digits and underscores like this_1_has (get it?).
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#
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# Then, just below the line that you just wrote
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# to construct a SimpleTurtle, add a few more lines that
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# make YOUR SimpleTurtle move around a bit.
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#
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# ** Nothing fancy is required. KISS. **
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# ** A SUBSEQUENT exercise will let you show your creativity. **
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#
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# As always, test by running the module.
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#
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########################################################################
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########################################################################
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#
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# TODO: 5.
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# After you have completed the above (including testing),
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# change the TODO at the beginning of this pink comment to DONE,
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# along with any other numbered TODOs that you have not yet done so.
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#
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# Run one more time to be sure that all is still OK.
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# Ensure that no blue bars on the scrollbar-thing to the right remain.
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#
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# Then COMMIT your work (which turns it in) by selecting (clicking on)
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# the file with the black dot (or the entire project if you prefer)
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# and then do SVN ~ Commit... from the SVN menu at the top.
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#
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# Check that the black symbol beside the file name in the
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# PyDev Package Explorer on the left has gone away.
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# That's how you can tell that you have turned in your work.
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#
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# You can COMMIT as often as you like. DO FREQUENT COMMITS.
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#
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########################################################################
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# ----------------------------------------------------------------------
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# Next line keeps the window open until the user clicks in the window:
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# ----------------------------------------------------------------------
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window.close_on_mouse_click()

‎src/m4e_loopy_turtles.py‎

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"""
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Demonstrates:
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-- LOOPS (doing something repeatedly) and
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-- using OBJECTS
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via Turtle Graphics.
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Concepts include:
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* Using OBJECTS:
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-- CONSTRUCT an INSTANCE of a CLASS (we call such instances OBJECTS).
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-- Make an object ** DO ** something by using a METHOD.
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-- Reference an object's ** DATA ** by using an INSTANCE VARIABLE.
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* LOOPS:
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-- Using a FOR expresssion like this:
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for k in range(41):
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blah
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blah
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blah
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The above repeats the body of the FOR expression 41 times.
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The name k is:
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0 the first time the body runs,
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then 1 the next time the body runs,
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then 2 the next time the body runs,
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etc
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then 40 the last time the body runs.
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* ASSIGNMENT and NAMES
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-- ASSIGNING a VALUE to a NAME (VARIABLE), as in these examples:
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jack = 45
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jill = 'ran down the hill'
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size = size - 12
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-- The computer's STATE during a run of a program is the set
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of current values of all the names that the computer is tracking.
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* The DOT trick: Type expressions like the following,
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pausing after typing the DOT (period, full stop).
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The window that pops up give lots of clues for what you can do!
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rg.
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rg.SimpleTurtle().
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rg.Pen().
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rg.PaintBucket()
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Authors: David Mutchler, Dave Fisher, Valerie Galluzzi, Amanda Stouder,
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and their colleagues. November 2016.
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"""
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import rosegraphics as rg
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window = rg.TurtleWindow()
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blue_turtle = rg.SimpleTurtle('turtle')
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blue_turtle.pen = rg.Pen('midnight blue', 3)
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blue_turtle.speed = 10 # Fast
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# The first square will be 300 x 300 pixels:
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size = 300
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# Do the indented code 13 times. Each time draws a square.
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for k in range(13):
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# Put the pen down, then draw a square of the given size:
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blue_turtle.draw_square(size)
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# Move a little below and to the right of where the previous
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# square started. Do this with the pen up (so nothing drawn).
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blue_turtle.pen_up()
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blue_turtle.right(45)
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blue_turtle.forward(10)
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blue_turtle.left(45)
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# Put the pen down again (so drawing resumes).
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# Make the size for the NEXT square be 12 pixels smaller.
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blue_turtle.pen_down()
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size = size - 12
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window.close_on_mouse_click()

‎src/m5_your_turtles.py‎

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"""
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Your chance to explore Loops and Turtles!
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Authors: David Mutchler, Dave Fisher, Valerie Galluzzi, Amanda Stouder,
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their colleagues and PUT_YOUR_NAME_HERE. November 2016.
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"""
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########################################################################
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# TODO: 1.
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# On Line 5 above, replace PUT_YOUR_NAME_HERE with your OWN name.
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########################################################################
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########################################################################
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# TODO: 2.
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#
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# You should have RUN the PREVIOUS module and READ its code.
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# (Do so now if you have not already done so.)
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#
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# Below this comment, add ANY CODE THAT YOUR WANT, as long as:
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# 1. You construct at least 2 rg.SimpleTurtle objects.
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# 2. Each rg.SimpleTurtle object draws something
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# (by moving, using its rg.Pen). ANYTHING is fine!
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# 3. Each rg.SimpleTurtle moves inside a LOOP.
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#
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# Be creative! Strive for way-cool pictures! Abstract pictures rule!
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#
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# If you make syntax (notational) errors, no worries -- get help
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# fixing them at either this session OR at the NEXT session.
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#
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# Don't forget to COMMIT your work by using SVN ~ Commit.
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########################################################################

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