inesp

class PrimaryTitleFinder:
  def get_title(object_):
    return object_.name if isinstance(object_, Person) else object_.title
  

person = Person(name="Artemisia Lomi", ...)
TitleFinder.get_title(person) # => returns "Artemisia Lomi"

issue = Issue(title="Find famous painters", assignee=...)
TitleFinder.get_title(issue) # => returns "Find famous painters"

inesp

# Here we define all possible parameter combinations.
# We also add a little bit of validation (which fields 
# are required, what are the default values).

from marshmallow import Schema, fields

class PMargharitaSchema(Schema):
  with_bazil = fields.Boolean(missing=True)
  
  

inesp

# We create dedicated pizza maker classes, each class
# creates just 1 type of pizza.
# We will also register the makers.

@register_pizza_maker
class _PizzaMargheritaMaker:
  pizza_class_name = "PizzaMargherita"
  
  def create(with_bazil=True):
    pizza = PizzaMargherita(with_bazil=True)

inesp

PizzaMaker().create_pizza(
  id=10, 
  created_at=<any date I choose, ie 1250-12-25>, 
  created_by=<any_user_I_choose>
)

inesp

class PizzaMaker:
  
  def create_pizza(self, **pizza_properties):
  
    pizza_type = pizza_properties["ptype"]
    pizza_class = get_pizza_class(pizza_type)
    if pizza_class is None:
      raise UnknownPizaType(pizza_type)
      
    del pizza_properties["ptype"]

inesp

def calculate_users_favorite_color(user, use_cache=True):
  pass

def calculate_users_favorite_color(user, use_cache=False):
  pass

def calculate_users_favorite_color(user, ignore_cache=True):
  pass

def calculate_users_favorite_color(user, ignore_cache=False):

inesp

from datetime import datetime

def calculate_users_favorite_color(user, ignore_cache=False):
  now = datetime.now()
  use_cache = not ignore_cache
  
  color, valid_until = None, None
  if use_cache:
    color, valid_until = cache.get(f"user_color_{user.id}")
    # handle the `valid_until` immediatelly

inesp

from datetime import datetime

def calculate_users_favorite_color(user, ignore_cache=False):
  now = datetime.now()
  
  color, valid_until = None, None
  if not ignore_cache:
    color, valid_until = cache.get(f"user_color_{user.id}")

  if ignore_cache or (valid_until is not None and valid_until > now):

inesp

from datetime import datetime

def calculate_users_favorite_color(user, use_cache=True):
  now = datetime.now()
  
  color, valid_until = None, None
  if use_cache:
    color, valid_until = cache.get(f"user_color_{user.id}")

  if not use_cache or (valid_until is not None and valid_until > now):

inesp

" :W sudo saves the file when the file is open in readonly mode
command W w !sudo tee % > /dev/null

""""""""""""""""""""""""""""""""""""
" Line
""""""""""""""""""""""""""""""""""""
" show line numbers
set number

"""""""""""""""""""""""""""""""""""""