How to Define a Function in Python

Intermediate 45 min 10 steps 48931 views Rating: 3.7/5 Published: 2026-02-06

Install Python.. Open a code editor.. Open a new file or open the file in which you want to define a function.

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Steps

1

Install Python.

Step 1

Install Python.

2

Open a code editor.

Step 2

Open a code editor.

3

Open a new file or open the file in which you want to define a function.

Step 3

Open a new file or open the file in which you want to define a function.

4

Type def to define a function.

Step 4

Type def to define a function.

5

Add the function name followed by parenthesis and a colon.

Step 5

Add the function name followed by parenthesis and a colon.

6

Indent the next line and add your code.

Step 6

Indent the next line and add your code.

7

Enter the name of a parameter or argument in the parenthesis after the function

Step 7

Enter the name of a parameter or argument in the parenthesis after the function name.

8

Use the argument name to process the argument in the code.

Step 8

Use the argument name to process the argument in the code.

9

Call the function.

Step 9

Call the function.

10

Add keyword arguments or parameters.

Step 10

Add keyword arguments or parameters.

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