Start with an array of integers, 1 through 5. First, square all the elements in the array. Then, sum all the elements of the squared array.

Explain the difference between the following quoting in Python:

my_string = 'the cat sat on the mat'
my_string = "the cat sat on the mat"
my_string = """the cat sat on the mat"""
my_string = '''the cat sat on the mat'''

Define the following object oriented concepts:

• Class, object (and the difference between the two)
• Instantiation
• Method (as opposed to, say, a C function)
• Static methods and classes
• Destructor/finalizer
• Inheritance
• Encapsulation
• Multiple inheritance (and give an example)
• Abstract class
• Interface/protocol (and different from abstract class)
• Method overriding
• Method overloading (and difference from overriding)
• Polymorphism (without resorting to examples)
• Method visibility (e.g. public/private/other)

Explain the difference between method overloading and method overriding

What is __init__.py? Give an example of where you would use it.

Explain what a list comprehension is and write some code that illustrates an example use.

Explain the difference between a tuple and a list and give an example of where you would use each.

Explain what the following Python code does:

phrase = 'hello mommy'
print phrase[:4] + phrase[4:]

Write one line of readable Python code that will print the sum the integers from 1 to 100