3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 00:54:21) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]
Python Type "help", "copyright", "credits" or "license" for more information.

# Another cool Python thing: ternary if

# Ifs the old way:
grade = 87
if grade >= 50:
    outcome = "pass"
else:
    outcome = "fail"

outcome
'pass'

# We can to that in ONE line:
outcome = "pass" if grade >= 50 else "fail"
outcome
'pass'

# This is a "functional programming" style of if statement.
# In functional programming, everything is an expression.
# You'll learn all about this in csc324.


# When we evaluated tree.py, there were lots of doctest failures because
# the contains function had doctest examples and no real body.  I'm removing
# those error messages here to avoid the clutter.
[evaluate tree.py]
Cannot read termcap database;
using dumb terminal settings.
0
   1
      3
         7
         8
      4
         9
   2
      5
      6
root
   left
      1
         2
         3
   right
      1
         2
         3

# Building a tree "by hand"
t1 = Tree(33)
t1
Tree(33)
t2 = Tree (1, [2, 3, 4])
t2
Tree(1, [2, 3, 4])
t3 = Tree(99, [t1, t2])
t3
Tree(99, [Tree(33), Tree(1, [2, 3, 4])])