Add mypy type checking

Graphics_and_Multimedia/Dominant_Colors/dominant_colors.py

@@ -125,7 +125,7 @@ def new_image(self):
         self.bands.set("".join(image.getbands()))
 
 
-def load_image(image_path: str) -> Image:
+def load_image(image_path: str) -> Image.Image:
     """Return Image object of specified image."""
     image = Image.open(image_path)
     image.load()

Graphics_and_Multimedia/Mp3_Player/mp3_player.pyw

@@ -255,7 +255,7 @@ class MainWindow(tk.Tk):
         self.treeview_frame.grid_rowconfigure(0, weight=1)
         self.volume_frame.grid_rowconfigure(1, weight=1)
 
-    def play_audio(self, file: tuple = None):
+    def play_audio(self, file: tuple | None = None):
         """Play the currently selected file."""
         selection = self.playlist_treeview.selection()
 

Numbers/Find_Pi_to_the_Nth_digit/tests.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 import unittest
 
-from find_pi_to_the_nth_digit import get_pi_to
+from Numbers.Find_Pi_to_the_Nth_digit.find_pi_to_the_nth_digit import get_pi_to
 
 
 class Test(unittest.TestCase):

README.md

@@ -12,7 +12,7 @@ The original categories from *Idea Bag 2* are used to organize them.
 
 ## How to use
 If you want to get the programs for playing around with them or editing them just download or clone them from Github.
-All programs need [python 3.8](https://www.python.org/downloads/) or later installed, 
+All programs need [python 3.10](https://www.python.org/downloads/) or later installed, 
 and for some of them external modules are required.
 Go to [Dependencies](#dependencies) to check which modules you need to install and how.
 
@@ -24,7 +24,7 @@ You can watch this video, which explains how to use this repository and how it i
 If you want to contribute in any way please take a look at [CONTRIBUTING.md](CONTRIBUTING.md).
 
 ## Dependencies
-* [Python 3.8+](https://www.python.org/downloads/)
+* [Python 3.10+](https://www.python.org/downloads/)
 * [Pillow](http://python-pillow.org) (Graphics and Multimedia/Dominant Colors, Threading/Bulk Thumbnail Creator)
 * [Beautifulsoup](https://www.crummy.com/software/BeautifulSoup/) (Web/Page Scraper)
 * [Pygame](https://www.pygame.org/) (Graphics and Multimedia/Mp3 Player)

Text/CD_Key_Generator/cd_key_generator.py

@@ -21,7 +21,7 @@
 import random
 
 
-def generate_key(characters: tuple, length: int, file_name: str = None) -> str:
+def generate_key(characters: tuple, length: int, file_name: str | None = None) -> str:
     """Return random string containing specified characters."""
     random_result = random.choices(characters, k=length)
     string = ""

Text/Fizz_Buzz/fizz_buzz.py

@@ -13,15 +13,15 @@
 from typing import Generator
 
 
-def fizzbuzz() -> list:
+def fizzbuzz() -> list[str | int]:
     """Return Fizz Buzz from 1 to 100.
 
     Return a list of numbers from 1 to 100,
     replacing multiples of three with Fizz,
     multiples of five with Buzz and
     multiples of both with FizzBuzz.
     """
-    fizzbuzz_list = []
+    fizzbuzz_list: list[str | int] = []
     for num in range(1, 101):
         if num % 3 == 0 and num % 5 == 0:
             fizzbuzz_list.append("FizzBuzz")

Text/RSS_Feed_Creator/rss_feed_creator.py

@@ -19,15 +19,15 @@ class RSSItem:
 
     def __init__(self,
                  title: str,
-                 link: str = None,
-                 description: str = None,
-                 author: str = None,
-                 category: str = None,
-                 comments: str = None,
-                 enclosure: dict = None,
-                 guid: str = None,
-                 pub_date: datetime.datetime = None,
-                 source: str = None):
+                 link: str | None = None,
+                 description: str | None = None,
+                 author: str | None = None,
+                 category: str | None = None,
+                 comments: str | None = None,
+                 enclosure: dict | None = None,
+                 guid: str | None = None,
+                 pub_date: datetime.datetime | None = None,
+                 source: str | None = None):
         self.title = title
         self.link = link
         self.description = description
@@ -48,22 +48,22 @@ def __init__(self,
                  channel_link: str,
                  channel_description: str,
                  items: List[RSSItem],
-                 language: str = None,
-                 copyright: str = None,
-                 managing_editor: str = None,
-                 web_master: str = None,
-                 pub_date: datetime.datetime = None,
-                 last_build_date: datetime.datetime = None,
-                 category: str = None,
-                 generator: str = None,
-                 docs: str = None,
-                 cloud: dict = None,
-                 ttl: int = None,
-                 image: dict = None,
-                 rating: str = None,
-                 text_input: dict = None,
-                 skip_hours: list = None,
-                 skip_days: list = None):
+                 language: str | None = None,
+                 copyright: str | None = None,
+                 managing_editor: str | None = None,
+                 web_master: str | None = None,
+                 pub_date: datetime.datetime | None = None,
+                 last_build_date: datetime.datetime | None = None,
+                 category: str | None = None,
+                 generator: str | None = None,
+                 docs: str | None = None,
+                 cloud: dict | None = None,
+                 ttl: int | None = None,
+                 image: dict | None = None,
+                 rating: str | None = None,
+                 text_input: dict | None = None,
+                 skip_hours: list | None = None,
+                 skip_days: list | None = None):
         self.channel_title = channel_title
         self.channel_link = channel_link
         self.channel_description = channel_description
@@ -89,7 +89,7 @@ def __init__(self,
 class RSSFile:
     """An RSS file."""
 
-    def __init__(self, file_name: str, rss_document: RSSDocument = None):
+    def __init__(self, file_name: str, rss_document: RSSDocument | None = None):
         self.file_name = file_name
         self.rss_document = rss_document