₦airaland Forum

‎Day 3
‎Debugging a Python Script That Keeps Crashing
‎
‎Today I want to share a quick debugging example.
‎
‎A common issue beginners run into is this error:
‎

‎TypeError: can only concatenate str (not "int" to str

‎
‎Example code that causes the error:
‎

‎age = 25
‎print("Your age is " + age)
‎

‎Python throws this error because you are trying to combine a string and an integer.
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‎Quick Fix #1
Convert the integer to a string
‎

‎age = 25
‎print("Your age is " + str(age))

‎
‎Quick Fix #2
Use formatted strings (better method)
‎

‎age = 25
‎print(f"Your age is {age}"
‎

‎Formatted strings ("f-strings" are cleaner and easier to read.
‎
‎Many Python bugs happen because of data type mismatches like this.
‎
‎If your Python script keeps crashing or throwing strange errors, post the error message here and I'll help you debug it.

‎Day 2
‎
‎Fixing a Very Common Python Error (File Not Found)
‎
‎Many people learning Python run into this error:
‎
‎FileNotFoundError: [Errno 2] No such file or directory
‎
‎This usually happens when Python cannot find the file you are trying to open.
‎
‎Example:
‎
‎

‎with open("data.txt" as file:
‎    content = file.read()
‎

‎
‎If "data.txt" is not in the same folder as your Python script, the program will crash.
‎.
‎Quick fixes:
‎
‎
‎- Make sure the file is in the same directory as your script.
‎
‎- Or provide the correct path:
‎
‎

‎with open("C:/Users/YourName/Documents/data.txt" as file:
‎    content = file.read()
‎

‎
‎- Another safe way is to check if the file exists before opening it:
‎
‎

‎import os
‎
‎if os.path.exists("data.txt":
‎    with open("data.txt" as file:
‎        print(file.read())
‎else:
‎    print("File not found"
‎

‎
‎Small issues like this can stop a script from running, but they are usually very quick to fix ad YES, you can use AI to fix them as well as long as you know wat you're doing.

Problem: Your Python script throws

IndexError: list index out of range?

Fix: Always check list length before accessing items:

my_list = [1,2,3]
if len(my_list) > 2:
    print(my_list[2])

Tip: Avoid hardcoding indexes - it saves headaches!