Fibonacci in Python
The Fibonacci sequence starts with 0 and 1. Each following value is the sum of the two values before it.
What is Fibonacci?
The Fibonacci sequence starts with 0 and 1. Each following value is the sum of the two values before it.
Generate the Fibonacci sequence in Python and run the code online.
When should you use it?
- Learn Python syntax through a practical example.
- Build a foundation for larger programming problems.
- Test an idea quickly without a local setup.
Example code
main.py
count = 10
a, b = 0, 1
for _ in range(count):
print(a, end=" ")
a, b = b, a + bExpected output
0 1 1 2 3 5 8 13 21 34How it works
The loop prints the current value, then updates both sequence variables at once using Python tuple assignment.
Change the values and run the program in the CodeUtility online Python compiler without installing Python locally.
Practice exercises
Modify the runnable example with the exercises below to build understanding beyond copying the result.
- Change the input and predict the output before running.
- Handle empty or invalid input.
- Wrap the logic in a function and add more test cases.