PYTHON PROGRAM • EXCEPTIONS & FILES

Write and Read a Text File in Python

Learn write and read a text file in python with a short, executable Python example.

IntermediatepathlibFile writeFile read

PROBLEM UNDERSTANDING

Input and expected output

Sample input

No input required

Sample output

Learn Python

COMPLETE PYTHON PROGRAM

Complete Python implementation

from pathlib import Path
path = Path('lesson.txt')
path.write_text('Learn Python', encoding='utf-8')
print(path.read_text(encoding='utf-8'))

CURRENT STEP

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SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

Learn Python

0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

Import the required standard-library tools and prepare the sample data for write and read a text file.
Perform the file operation using pathlib and File write.
Display the result for write and read a text file and compare it with the documented sample output.

This example of write and read a text file computes the result directly from the prepared sample data. It demonstrates pathlib, File write, and File read and prints a deterministic result that can be checked against the sample output.

EFFICIENCY

Time and space complexity

Time complexity

O(n)

Auxiliary space

O(n)

DEBUGGING CHECKLIST

Common mistakes

Check this

For write and read a text file, keep the data shape and value types consistent with pathlib.

Check this

Apply pathlib in the same order shown by the algorithm; changing the order can change the result.

Check this

Use the intended file mode and encoding, and let the context manager close the resource.

Try it yourself

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