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tempfile for safe temporary files and directories

tempfile is the safe way to create temporary files and directories. It avoids naming collisions and handles cleanup more reliably than hand-picked temp paths.

Why it is useful​

from tempfile import TemporaryDirectory
from pathlib import Path

with TemporaryDirectory() as temp_dir:
    path = Path(temp_dir) / "output.txt"
    path.write_text("hello")
    print(path.exists())

Output:

True

When the block ends, the temporary directory is cleaned up automatically.

Good use cases​

  • tests
  • intermediate files
  • short-lived exports
  • temporary workspaces

Rules of thumb​

  • Use tempfile instead of inventing temp paths yourself.
  • Prefer block-scoped temp resources with automatic cleanup.
  • Reach for TemporaryDirectory when several temp files belong together.