out = []
for item in x:
    out.append(item**2)
print(out)

[item**2 for item in x]

def my_func(param1='default'):
    """
    Docstring goes here.
    """
    print(param1)

my_func

my_func()

my_func('new param')

my_func(param1='new param')

def square(x):
    return x**2

out = square(2)

print(out)

def times2(var):
    return var*2

times2(2)

lambda var: var*2

seq = [1,2,3,4,5]

map(times2,seq)

list(map(times2,seq))

list(map(lambda var: var*2,seq))

filter(lambda item: item%2 == 0,seq)

list(filter(lambda item: item%2 == 0,seq))

st = 'hello my name is Sam'

st.lower()

st.upper()

st.split()

tweet = 'Go Sports! #Sports'

tweet.split('#')