PYTHON PROGRAM • FUNCTIONAL & ADVANCED PYTHON

Use an Iterator Explicitly in Python

Learn use an iterator explicitly in python with a short, executable Python example.

Intermediateiter()next()

PROBLEM UNDERSTANDING

Input and expected output

Sample input
No input required
Sample output
C
DSA

COMPLETE PYTHON PROGRAM

Complete Python implementation

python-iterator-next.py
Open in compiler
iterator = iter(['C', 'DSA', 'Python'])
print(next(iterator))
print(next(iterator))

GUIDED CODE TOUR • NOT LIVE EXECUTION

Study the program line by line

Use the real compiler button above to run and debug with different inputs.

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EXPECTED OUTPUT FOR THE SAMPLE

C
DSA
0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

  1. Initialize the sample values used to use an iterator explicitly.
  2. Apply iter() and next() to compute the required result.
  3. Display the result for use an iterator explicitly and compare it with the documented sample output.

This example of use an iterator explicitly computes the result directly from the prepared sample data. It demonstrates iter() and next() and prints a deterministic result that can be checked against the sample output.

EFFICIENCY

Time and space complexity

Time complexity

O(1)

Auxiliary space

O(1)

DEBUGGING CHECKLIST

Common mistakes

Check this

For use an iterator explicitly, keep the data shape and value types consistent with iter().

Check this

Apply iter() in the same order shown by the algorithm; changing the order can change the result.

Check this

Verify the final iter() and next() result against the sample before trying new data.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.