One of the first questions that occurs to mind (naturally, assuming that you are a beginner with Python) is: How do I run a Python script
What actually does it mean to run a Python script?
When you are building small automation tools or back-end services, you will need to perform a lot of experimentation. Frankly speaking, familiarity with running Python scripts is one of those basic things that you should get comfortable with at the initial stages.
This guide makes it easy to follow it step by step, in an easy and practical manner.
What Is a Python Script?
A Python script simply is a file containing some Python code, and it usually bears a Python extension of .py.
Example:
print("Hello, world!")
The way this file is run is one line at a time. Python reads the file and executes it.
What You Need
You must first make the fundamentals in order before striking any run buttons:
- Python installed (Python 3.x or above is recommended)
- A code editor (VS Code, PyCharm, or even Notepad)
- Rudimentary command line skills
Check If Python Is Installed
Open your terminal or cmd now and enter:
python --version
or:
python3 --version
When you get Python 3.12, then you are safe.
Ways to Run a Python Script
It does not have just one way; these are the most widespread that are actually used.
Method 1: Running a Python Script in Terminal / Command Prompt
It is the most useful and most common method.
Steps:
- Open Terminal (Linux/macOS) or Command Prompt (Windows)
- Go into your script folder:
cd path/to/your/script
- Run the script:
python script.py
or:
python3 script.py
Example:
python hello.py
Pro Tip:
If Python doesn’t work, try:
py script.py
Option 2: Execute by Single Clicking the File
Or just use a second click on the .py file.
How it works:
- In Windows, Python is associated with
.pyfiles - Double-click → script runs
The problem:
- The window could be closed immediately
- Even failing to present the final output to you
Quick fix:
The final thing that you are going to add to the script:
input("Press Enter to exit...")
Method 3: Run Using VS Code
It is what most developers would prefer.
Steps:
- Open your project in VS Code
- Open the
.pyfile - Click the Run button or:
Ctrl + F5
Why this is better:
- Built-in debugging
- Integrated terminal
- Easier to see errors
The other option is to Run Using Python IDLE
Python has an inbuilt simple editor, which is referred to as IDLE.
Steps:
- Open IDLE
- Go to File → Open
- Press:
F5
Step 5: Script executable (Linux/macOS)
On Linux or macOS, the scripts, such as commands, can be run.
Steps:
- Add this line at the top:
#!/usr/bin/env python3
- Make it executable:
chmod +x script.py
- Run it:
./script.py
Comparison of Methods
| Method | Ease of Use | Best For |
|---|---|---|
| Terminal / CMD | Beginners & pros | Quick execution |
| VS Code | Developers | Debugging & projects |
| Python IDLE | Beginners | Learning basics |
| Executable (Unix) | Advanced users | CLI tools |
Mistakes of a similar nature (You Can Expect These 깊)
“python is not recognized”
- Resolution Check Add Python to the PATH on the install.
File not found
- Make sure that you are in the correct folder:
cd correct-folder
SyntaxError
Example:
print("Hello")
(Missing closing bracket)
Best Practices
Use Virtual Environments
python -m venv venv
source venv/bin/activate
Use Clear File Names
Instead of:
test1.py
Use:
data_processor.py
Keep Code Organized
- Use functions
- Do not put all the things in one file
- Add comments where needed
Print (Advanced) Use Logging (Advanced)
import logging.info("Script started")
As an illustration, consider the following python program
Step 1: Create a file
greet.py
name = input('Please enter your name: ')
print(f"Hello, {name}!")
Step 2: Run it
python greet.py
Output:
Enter your name: John
Hello, John!
Suggested Reads
Final Thoughts
But just how do we run Python?
Frankly speaking, it is a matter of your working. However, in real-life cases, in a huge majority of cases, individuals resolve with:
- Terminal
- Or a code editor like VS Code
It is second nature, when you get accustomed to it. And this is where it all starts, be it automation tools that you are creating or complete fully-fledged applications.
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