File Operations

BeginnerPython
Python 3open()pathlibos

Objective

Read, write, and manage files using Python.

Tools & Technologies

  • Python 3
  • open()
  • pathlib
  • os

Key Commands

with open('file.txt') as f: data = f.read()
pathlib.Path('dir').mkdir(parents=True)
os.walk('.')
json.dump(data, f)

Lab Steps

01
Reading Files

Open and read text files with context managers.

02
Writing Files

Write and append to files with proper encoding specification.

03
pathlib

Use pathlib.Path for cross-platform file path manipulation.

04
JSON/CSV

Read and write JSON and CSV files with the standard library.

Challenges Encountered

  • Forgetting to close files without context manager
  • Encoding errors on non-UTF-8 files

Key Takeaways

  • Always use with statement for file I/O — it ensures proper closing
  • pathlib is more readable than os.path for path manipulation