From 08be4731ad0e15bc42b2b2eb6354057590622fb0 Mon Sep 17 00:00:00 2001
From: gahjelle <geirarne@gmail.com>
Date: Wed, 30 Apr 2025 16:13:47 +0200
Subject: [PATCH 1/3] How to Debug Common Python Errors

---
 debug-python-errors/README.md      |  3 +++
 debug-python-errors/cat.py         |  3 +++
 debug-python-errors/fruit.py       | 12 ++++++++++
 debug-python-errors/palindromes.py | 13 +++++++++++
 debug-python-errors/test_fruit.py  | 36 ++++++++++++++++++++++++++++++
 5 files changed, 67 insertions(+)
 create mode 100644 debug-python-errors/README.md
 create mode 100644 debug-python-errors/cat.py
 create mode 100644 debug-python-errors/fruit.py
 create mode 100644 debug-python-errors/palindromes.py
 create mode 100644 debug-python-errors/test_fruit.py

diff --git a/debug-python-errors/README.md b/debug-python-errors/README.md
new file mode 100644
index 0000000000..085ee71e00
--- /dev/null
+++ b/debug-python-errors/README.md
@@ -0,0 +1,3 @@
+# How to Debug Common Python Errors
+
+This folder provides the code examples for the Real Python tutorial [How to Debug Common Python Errors](https://realpython.com/debug-python-errors/).
diff --git a/debug-python-errors/cat.py b/debug-python-errors/cat.py
new file mode 100644
index 0000000000..8e350e1ed8
--- /dev/null
+++ b/debug-python-errors/cat.py
@@ -0,0 +1,3 @@
+cat = "Siamese"
+
+print(cat)
diff --git a/debug-python-errors/fruit.py b/debug-python-errors/fruit.py
new file mode 100644
index 0000000000..f63f12b0a8
--- /dev/null
+++ b/debug-python-errors/fruit.py
@@ -0,0 +1,12 @@
+def capitalize_fruit_names(fruits):
+    capitalized_fruit_names = []
+    cleaned = [fruit if isinstance(fruit, str) else "" for fruit in fruits]
+
+    for fruit in cleaned:
+        capitalized_fruit_names.append(fruit.capitalize())
+
+    return capitalized_fruit_names
+
+
+if __name__ == "__main__":
+    print(capitalize_fruit_names(["apple", "BANANA", "cherry", "maNgo"]))
diff --git a/debug-python-errors/palindromes.py b/debug-python-errors/palindromes.py
new file mode 100644
index 0000000000..da68f69510
--- /dev/null
+++ b/debug-python-errors/palindromes.py
@@ -0,0 +1,13 @@
+def find_palindromes(text):
+    # Split sentence into words
+    words = text.split()
+
+    # Remove punctuation and convert to lowercase
+    normalized_words = ["".join(filter(str.isalnum, word)).lower() for word in words]
+
+    # Check for palindromes
+    return [word for word in normalized_words if word == word[::-1]]
+
+
+if __name__ == "__main__":
+    print(find_palindromes("Dad plays many solos at noon, and sees a racecar."))
diff --git a/debug-python-errors/test_fruit.py b/debug-python-errors/test_fruit.py
new file mode 100644
index 0000000000..b824f5408a
--- /dev/null
+++ b/debug-python-errors/test_fruit.py
@@ -0,0 +1,36 @@
+import unittest
+from fruit import capitalize_fruit_names
+
+class TestAllFruits(unittest.TestCase):
+    def test_empty_list(self):
+        """with empty list"""
+        self.assertEqual(capitalize_fruit_names([]), [])
+
+    def test_lowercase_list(self):
+        """with lowercase strings"""
+        self.assertEqual(
+            capitalize_fruit_names(["apple", "banana", "cherry"]),
+            ["Apple", "Banana", "Cherry"],
+        )
+
+    def test_uppercase_list(self):
+        """with uppercase strings"""
+        self.assertEqual(
+            capitalize_fruit_names(["APPLE", "BANANA", "CHERRY"]),
+            ["Apple", "Banana", "Cherry"],
+        )
+
+    def test_mixed_case_list(self):
+        """with mixed case strings"""
+        self.assertEqual(
+            capitalize_fruit_names(["mAnGo", "grApE"]), ["Mango", "Grape"]
+        )
+
+    def test_non_string_element(self):
+        """with a mix of integer and string elements"""
+        self.assertEqual(
+            capitalize_fruit_names([123, "banana"]), ["", "Banana"]
+        )
+
+if __name__ == "__main__":
+    unittest.main()

From 628ff575b58effeb50220d125d6183ff0603a9aa Mon Sep 17 00:00:00 2001
From: gahjelle <geirarne@gmail.com>
Date: Wed, 30 Apr 2025 16:16:32 +0200
Subject: [PATCH 2/3] Fix imports

---
 debug-python-errors/test_fruit.py | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/debug-python-errors/test_fruit.py b/debug-python-errors/test_fruit.py
index b824f5408a..688d0b7085 100644
--- a/debug-python-errors/test_fruit.py
+++ b/debug-python-errors/test_fruit.py
@@ -1,6 +1,8 @@
 import unittest
+
 from fruit import capitalize_fruit_names
 
+
 class TestAllFruits(unittest.TestCase):
     def test_empty_list(self):
         """with empty list"""
@@ -22,15 +24,12 @@ def test_uppercase_list(self):
 
     def test_mixed_case_list(self):
         """with mixed case strings"""
-        self.assertEqual(
-            capitalize_fruit_names(["mAnGo", "grApE"]), ["Mango", "Grape"]
-        )
+        self.assertEqual(capitalize_fruit_names(["mAnGo", "grApE"]), ["Mango", "Grape"])
 
     def test_non_string_element(self):
         """with a mix of integer and string elements"""
-        self.assertEqual(
-            capitalize_fruit_names([123, "banana"]), ["", "Banana"]
-        )
+        self.assertEqual(capitalize_fruit_names([123, "banana"]), ["", "Banana"])
+
 
 if __name__ == "__main__":
     unittest.main()

From a7a7f7fdf66c44bcb7859f8e02695fb1223a20fc Mon Sep 17 00:00:00 2001
From: gahjelle <geirarne@gmail.com>
Date: Wed, 30 Apr 2025 16:18:06 +0200
Subject: [PATCH 3/3] Fix formatting

---
 debug-python-errors/palindromes.py | 8 ++++++--
 debug-python-errors/test_fruit.py  | 8 ++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/debug-python-errors/palindromes.py b/debug-python-errors/palindromes.py
index da68f69510..c73d3afa39 100644
--- a/debug-python-errors/palindromes.py
+++ b/debug-python-errors/palindromes.py
@@ -3,11 +3,15 @@ def find_palindromes(text):
     words = text.split()
 
     # Remove punctuation and convert to lowercase
-    normalized_words = ["".join(filter(str.isalnum, word)).lower() for word in words]
+    normalized_words = [
+        "".join(filter(str.isalnum, word)).lower() for word in words
+    ]
 
     # Check for palindromes
     return [word for word in normalized_words if word == word[::-1]]
 
 
 if __name__ == "__main__":
-    print(find_palindromes("Dad plays many solos at noon, and sees a racecar."))
+    print(
+        find_palindromes("Dad plays many solos at noon, and sees a racecar.")
+    )
diff --git a/debug-python-errors/test_fruit.py b/debug-python-errors/test_fruit.py
index 688d0b7085..83f3520cc4 100644
--- a/debug-python-errors/test_fruit.py
+++ b/debug-python-errors/test_fruit.py
@@ -24,11 +24,15 @@ def test_uppercase_list(self):
 
     def test_mixed_case_list(self):
         """with mixed case strings"""
-        self.assertEqual(capitalize_fruit_names(["mAnGo", "grApE"]), ["Mango", "Grape"])
+        self.assertEqual(
+            capitalize_fruit_names(["mAnGo", "grApE"]), ["Mango", "Grape"]
+        )
 
     def test_non_string_element(self):
         """with a mix of integer and string elements"""
-        self.assertEqual(capitalize_fruit_names([123, "banana"]), ["", "Banana"])
+        self.assertEqual(
+            capitalize_fruit_names([123, "banana"]), ["", "Banana"]
+        )
 
 
 if __name__ == "__main__":