Un-readable code

question01.py

import datetime


ymdstr = datetime.date.today().strftime("%y-%m-%d")

question02.py

def get_user_info(): pass
def get_client_data(): pass
def get_customer_record(): pass

question03.py

import time


# What is the number 86400 for again?
time.sleep(86400)

question04.py

import re


address = "One Infinite Loop, Cupertino 95014"
city_zip_code_regex = r"^[^,\\]+[,\\\s]+(.+?)\s*(\d{5})?$"

matches = re.match(city_zip_code_regex, address)
if matches:
    print(f"{matches[1]}: {matches[2]}")

question05.py

seq = ("Austin", "New York", "San Francisco")

for item in seq:
    #do_stuff()
    #do_some_other_stuff()

    # Wait, what's `item` again?
    print(item)

question06.py

class Car:
    car_make: str
    car_model: str
    car_color: str

question07.py

from typing import List


class Client:
    active: bool


def email(client: Client) -> None:
    pass


def email_clients(clients: List[Client]) -> None:
    """Filter active clients and send them an email.
    """
    for client in clients:
        if client.active:
            email(client)

question08.py

class Email:
    def handle(self) -> None:
        pass

message = Email()
# What is this supposed to do again?
message.handle()

question09.py

# type: ignore

def parse_better_js_alternative(code: str) -> None:
    regexes = [
        # ...
    ]

    statements = code.split('\n')
    tokens = []
    for regex in regexes:
        for statement in statements:
            pass

    ast = []
    for token in tokens:
        pass

    for node in ast:
        pass

question10.py

from typing import Text
from tempfile import gettempdir
from pathlib import Path


def create_file(name: Text, temp: bool) -> None:
    if temp:
        (Path(gettempdir()) / name).touch()
    else:
        Path(name).touch()

question11.py

# type: ignore

# This is a module-level name.
# It"s good practice to define these as immutable values, such as a string.
# However...
fullname = "Ryan McDermott"

def split_into_first_and_last_name() -> None:
    # The use of the global keyword here is changing the meaning of the
    # the following line. This function is now mutating the module-level
    # state and introducing a side-effect!
    global fullname
    fullname = fullname.split()

split_into_first_and_last_name()

# MyPy will spot the problem, complaining about 'Incompatible types in 
# assignment: (expression has type "List[str]", variable has type "str")'
print(fullname)  # ["Ryan", "McDermott"]

# OK. It worked the first time, but what will happen if we call the
# function again?