s1 = "abc¥"
data = s1.encode()

# These are encoded as bytes
print(data)

# Iteration does not give text characters like string.
for x in data:
    print(x)

# Decode to get text representation
data.decode()

# Interface is same as string - string methods work
data.capitalize()

# Already can do this
a,b,c = [1, 'cool', True]
print(a)
print(b)
print(c)

# Now you can do
a,b,*c = [1, 'cool', True, 'more']
print(a)
print(b)
print(c)

def weird(a,b,c=False):
    if c:
        print("I have deleted everything")
    else:
        print("No damage done yet")

# Passed True by mistake. Didnt know anything about the keyword arg 'c'
weird(1,2,True)

def nice_weird(a,b,*k, c=False):
    if c:
        print("I have deleted everything")
    else:
        print("No damage done yet")

nice_weird(1,2,True)

nice_weird(1,2,True,False,True,c=False)

my_range = range(0,5)
type(my_range)

for x in range(0,5):
    print(x)

list(my_range)

mymap = map(lambda x: x**2, [3,4,5])
type(mymap)

list(mymap)

# Incorrect
raise IOError, "got error"

# Correct
raise IOError("got error")

# Incorrect
try:
    pass
except IOError, err:
    pass

# Correct:
try:
    pass
except IOError as err:
    pass

[1,2,3] > "hello"

# Generator
def gen():
    for i in [0,1,2]:
        yield i

# To pass on values from generator you have to do this
def process_gen():
    for j in gen():
        yield j

list(process_gen())

# Now you can do this
def process_gen_new():
    yield from gen()

list(process_gen_new())

from enum import Enum

class Shape(Enum):
    circle = 0
    square = 1
    rhombus = 2

print(Shape.circle)
print(Shape.circle.name)
print(Shape.circle.value)

mydict = {Shape.circle:"circular", Shape.square:"squarish"}
print(mydict[Shape.circle])

def masquerader(a:int, b:str) -> float:
    print("I am a Haskell/Ocaml/Scala wannabe")

masquerader("doesnt", "matter")

from IPython.display import HTML
HTML('<iframe src=https://python3wos.appspot.com/ width=700 height=350></iframe>')