gistfile1.py

# pythonic
def map(source, func):
    dest = []
    for x in source:
        dest.append(func(x))
    return dest

# list comprehension
def map(source, func):
    return [func(x) for x in source]

# lambda
map = lambda s,f: [f(x) for x in s]

# generator
def map(source, func):
    for x in source:
        yield func(x)

# desg
def map(list,func):
	x = 0
	for len(list) in x:
		new_list = new_list.append(func(list[x]))
		x += 1
	return new_list

# desg that works
def map(source, func):
    dest = list() # this is why we don't name things list
    for i, x in enumerate(source):
         dest.append(func(source[i]))
    return dest