Chapter 13

CodeMouse92 · CodeMouse92 · commit 842802bed0b3 · 2022-05-27T10:52:33.000-05:00
diff --git a/Ch13/bullet_journal.py b/Ch13/bullet_journal.py
@@ -0,0 +1,57 @@
+from calendar import month
+
+
+class Collection:
+
+    def __init__(self, title, page_start, length=1):
+        self.title = title
+        self.page_start = page_start
+        self.page_end = page_start + length - 1
+        self.item = []
+
+    def __str__(self):
+        return self.title
+
+    def expand(self, by):
+        self.page_end += by
+
+    def add_item(self, bullet, note, signifier=None):
+        """Adds an item to the monthly log."""
+
+
+class MonthlyLog(Collection):
+
+    def __init__(self, month, year, page_start, length=2):
+        super().__init__(f"{month} {year}", page_start, length)
+        self.events = []
+
+    def __str__(self):
+        return f"{self.title} (Monthly Log)"
+
+    def add_event(self, event, date=None):
+        """Logs an event for the given date (today by default)."""
+
+
+class FutureLog(Collection):
+
+    def __init__(self, start_month, page_start):
+        super().__init__("Future Log", page_start, 4)
+        self.start = start_month
+        self.months = [start_month]  # TODO: Add other five months.
+
+    def add_item(self, bullet, note, signifier=None, month=None):
+        """Adds an item to the future log for the given month."""
+
+
+log = FutureLog('May 2023', 5)
+log.add_item('June 2023', '.', 'Clean mechanical keyboard')
+print(log)  # prints "Future Log"
+
+monthly = MonthlyLog('April', '2023', 9)
+monthly.add_event('Finally learned Python inheritance!')
+monthly.add_item('.', 'Email Ben re: coffee meeting')
+print(monthly)  # prints "April 2023 (Monthly Log)"
+
+to_read = Collection("Books to Read", 17)
+to_read.add_item('.', 'Anne of Avonlea')
+print(to_read)  # prints "Books to Read"
diff --git a/Ch13/calzone.py b/Ch13/calzone.py
@@ -0,0 +1,31 @@
+class Food:
+    def __str__(self):
+        return "Yum, what is it?"
+
+
+class Pizza(Food):
+    def __str__(self):
+        return "Piiiizzaaaaaa"
+
+
+class Sandwich(Food):
+    def __str__(self):
+        return "Mmm, sammich."
+
+
+class Calzone(Pizza, Sandwich):
+    pass
+
+
+calzone = Calzone()
+print(calzone)  # what gets printed??
+
+
+# class PizzaSandwich(Sandwich, Pizza):
+class PizzaSandwich(Pizza, Sandwich):
+    pass
+
+
+class CalzonePizzaSandwich(Calzone, PizzaSandwich):
+    def __str__(self):
+        return Calzone.__str__(self)
diff --git a/Ch13/livesettings.ini b/Ch13/livesettings.ini
@@ -0,0 +1,3 @@
+[MAGIC]
+UserName = Bob
+MagicNumber = 42
diff --git a/Ch13/make_calzone.py b/Ch13/make_calzone.py
@@ -0,0 +1,32 @@
+class Food:
+    def __init__(self, name):
+        self.name = name
+
+
+class Pizza(Food):
+    def __init__(self, toppings, name="Pizza", **kwargs):
+        super().__init__(name=name, **kwargs)
+        self.toppings = toppings
+
+
+class Sandwich(Food):
+    def __init__(self, bread, fillings, name="Sandwich", **kwargs):
+        super().__init__(name=name, **kwargs)
+        self.bread = bread
+        self.fillings = fillings
+
+
+class Calzone(Pizza, Sandwich):
+    def __init__(self, toppings):
+        super().__init__(
+            toppings=toppings,
+            bread='pizza crust',
+            fillings=toppings,
+            name='Calzone'
+        )
+
+
+# The usage...
+pizza = Pizza(toppings="pepperoni")
+sandwich = Sandwich(bread="rye", fillings="swiss")
+calzone = Calzone("sausage")
diff --git a/Ch13/mixins.py b/Ch13/mixins.py
@@ -0,0 +1,47 @@
+import configparser
+from pathlib import Path
+
+
+class SettingsFileMixin:
+
+    settings_path = Path('livesettings.ini')
+    config = configparser.ConfigParser()
+
+    def read_setting(self, key):
+        self.config.read(self.settings_path)
+        try:
+            return self.config[self.settings_section][key]
+        except KeyError:
+            raise KeyError("invalid section in settings file.")
+
+
+class Greeter(SettingsFileMixin):
+
+    def __init__(self, greeting):
+        self.settings_section = 'MAGIC'
+        self.greeting = greeting
+
+    def __str__(self):
+        try:
+            name = self.read_setting('UserName')
+        except KeyError:
+            name = "user"
+        return f"{self.greeting} {name}!"
+
+
+class MagicNumberPrinter(SettingsFileMixin):
+
+    def __init__(self, greeting):
+        self.settings_section = 'MAGIC'
+
+    def __str__(self):
+        try:
+            magic_number = self.read_setting('MagicNumber')
+        except KeyError:
+            magic_number = "unknown"
+        return f"The magic number is {magic_number}!"
+
+
+greeter = Greeter("Salutations,")
+for i in range(100000):
+    print(greeter)

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+[MAGIC]`
	`2`	`+UserName = Bob`
	`3`	`+MagicNumber = 42`