Python North West 18/2/21

main.py

# examples.py
def example1(a: int):
    return a + 1

print(example1(2))
print(example1("hello"))

def example2(a: int):
    return a * 3

print(example2(2))
print(example2("hello"))

from typing import List

def example3(a: List[int]):
    for b in a:
        print(b + 1)

example3([1,2,3])
example3(123)
example3(["1",2,"3"])

# main.py
from typing import Any, Protocol, Union

class Message:
    def __init__(self, text):
        self.text = text

class HasText(Protocol):
    text: bool

def write_to_audit_log(m: HasText):
    if m.text:
        print(m.text)
    # ...
    print(audit_log_message)

write_to_audit_log(Message("Message 1"))

class AnotherThingToAuditLog:
    text = "Hi PyNW"

write_to_audit_log(AnotherThingToAuditLog())

class IncomingMessage:
    def __init__(self, text):
        self.text = text

write_to_audit_log(IncomingMessage("Message 2"))