Python Tips and Tricks
# __repr__ vs __str__ How a python Class is represented as a string also how is represented, when you interact with the object.Instead of building your own to-string conversion machinery you’ll be better off adding the __str__ and __repr__ “dunder” methods to your class. They are the Pythonic way to control how objects are converted to strings in different situations Notes: str = easy to read representation of the class repr = unambiguos more ment for developers Example import datetime date = datetime.date.today() > str(date) >'2017-07-11' > repr(date) 'datetime.date(2017, 7, 11)' **************************************************** # The get() method on dicts # and its "default" argument name_for_userid = { 382 : "Alice" , 590 : "Bob" , 951 : "Dilbert" , } def greeting (userid): return "Hi %s!" % name_for_userid . get(userid, "there" ) >>> gree