Python Simplifcation Exercises

combine_two_lists.py

# Task
# Combine the two lists so you can iterate in the for loop at once
# Tip: you need to find two builtin functions which helps with this task

names = ('Tux', 'Wilber', 'Geeko')
ages  = (2020-1996,  2020-1995,  2020-1992)

for i in range(len(names)):
    name = names[i]
    age = ages[i]
    print(f"#{i+1}: {name} is {age} old")

if-expresion.py

# Task
# Simplify the if expressions

lst = []
if len(lst) == 0:
    print("List is empty")

dct = {'a': 1}
if len(dct) != 0:
    print("Dict is not empty")

snacks.py

# Task
# Simplify the following for loop to make it more pythonic

snacks = [('backon', 350), ('donut', 240), ('muffin', 190)]

for i in range(len(snacks)):
    item = snacks[i]
    name = item[0]
    calories = item[1]
    print(f'#{i+1}: {name} has {calories} calories')

to_bytes.py

# Task
# Implement the function "to_bytes"

def to_bytes(bytes_or_str, encoding="utf-8"):
    """
    Convert a byte or a string to an byte instance

    :param bytes_or_str: the string as str or byte type
    :param encoding: the encoding to use when encode a string
    :return: a byte string
    :rtype: bytes
    """
    # add here your implementation
    return ...


print(repr(to_bytes(b'hello')))
print(repr(to_bytes('world')))

# Result should be (for both):
# 'hello'