Python is a simple and increasingly popular programming language with trending features. For those who are new to programming, working with Python can be complicated when they are faced with errors in Python. In this article, we will help you identify errors and how to easily debug in Python.
Types of Errors in Python
Contents
To be able to handle unfortunate problems that arise while programming, people need to understand and distinguish two types of Python errors. Those are syntax errors and exception errors.
Syntax errors
It will be generated when the programmer writes code that does not follow the rules of the Python language or have a typo. Syntax errors usually appear at the time you compile the program and will be reported by the compiler. Here is an example of a syntax error:
Input:
number = 20
if number > 10
print(“Number is greater than 10!”)
Output:
py_compile.PyCompileError: File “./prog.py”, line 2
if number > 10
^
SyntaxError: invalid syntax
In the above example, the syntax error occurs because you forgot to end the if statement with a “:”.
Exception errors
Exceptions or logic errors cause the program to behave incorrectly, but they usually do not crash the program. It can be said that this Python error is often difficult to detect. Especially undetectable at the time of writing the code. An example of an exception error is as follows:
Input:
c = 10
d = 0
print(c/d)
Output:
Traceback (most recent call last):
File “./prog.py”, line 3, in <module>
ZeroDivisionError: division by zero
The error occurs when you do the calculation to divide a number by 0. From the above message you can know the exact location of the error and the cause of the error.
The exception class is usually built-in in Python. You can learn more about error types in this article: Python Error Types
How To Easily Debug In Python
Step 1: Determine the error type based on the error message sent from the console.
Step 2: Debugging
For syntax errors, you can edit the statement according to the correct syntax.
For exception errors, the general mechanism of error handling that Python gives is to stop the program as soon as an exception is detected. You can briefly understand that Python will perform the following operations:
- Immediately stop program execution when a Python error occurs
- Create Object of corresponding Class Exception in default
- Report the error with full details about the location and type of error encountered.
As a result, programmers will know exactly what the problem is and find a solution.
Conclusion
Depending on the type of error, the difficulty and error handling time will vary. Hopefully the article “How To Easily Debug In Python” will help you find the fastest way to debug. Visit this website to learn more. Thanks for reading!