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title: executing python scripts from the shell: a step-by-step tutorial
introduction:
executing python scripts from the shell is a fundamental skill for any python developer. it allows you to run your scripts outside of an integrated development environment (ide) and is essential for automating tasks, building applications, and more. in this tutorial, we'll guide you through the process of executing python scripts from the command line or terminal, providing examples and explanations along the way.
step 1: write a simple python script
before executing a python script, let's create a basic one for demonstration purposes. open your preferred text editor and create a file named myscript.py with the following content:
save the file and make sure it's in the same directory where you'll be executing commands.
step 2: open the shell
open your terminal or command prompt. the steps for this vary depending on your operating system. on linux or macos, you can use the built-in terminal. on windows, you might use command prompt or powershell.
step 3: navigate to the script's directory
use the cd command to navigate to the directory where your python script is located. for example:
replace path/to/script/directory with the actual path to your script's directory.
step 4: execute the python script
to execute a python script from the shell, use the python command followed by the script's filename. if you're using python 3, you might use python3 instead. for our example:
or for python 3:
if everything is set up correctly, you should see the output "hello, world!" printed to the console.
additional tips:
passing command-line arguments:
you can pass arguments to your script from the command line. modify your script to handle arguments:
execute with an argument:
using shebang (linux/macos only):
add the following line at the beginning of your script to make it executable without explicitly calling python:
make your script executable:
run the script directly:
conclusion:
executing python ...

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