This Python tutorial explains pathlib.Path.copy() Method: Usage and Examples. Follow the example, inspect the output, and practise an input change so you understand the behavior rather than simply copying the syntax.
What This Feature Does
Copy a file or entire directory tree with Path.copy(), available in Python.
Path.copy(target, follow_symlinks=True, preserve_metadata=False) returns a Path for the copy. It supports both individual files and directory trees, and may use copy-on-write on supported filesystems. The method was added in Python 3.14 and remains available in 3.15.
When to Use It
This technique belongs to pathlib and file paths. It is useful when the input, operation and expected outcome are known. Start with a small controlled example before integrating it into a larger workflow.
Step-by-Step Python Example
Read the code once before running it. Notice which values are inputs, which function or method performs the work, and whether the result is returned or stored by changing an existing object.
from pathlib import Path
from tempfile import TemporaryDirectory
with TemporaryDirectory() as temporary_folder:
root_folder = Path(temporary_folder)
source_file = root_folder / "report.txt"
source_file.write_text("Quarterly report", encoding="utf-8")
copied_file = source_file.copy(root_folder / "report-backup.txt")
print(copied_file.read_text(encoding="utf-8"))Understanding the Code
- First, the imports make pathlib, tempfile available. They provide the filesystem, data or standard-library functions used later.
- Find the call source_file.copy(root_folder / "report-backup.txt"). Its parameters determine the specific operation demonstrated in the title.
- Its purpose is to copy a file or entire directory tree with path.copy(), available in python 3.15. Compare this description against the result printed by the program.
- The sample uses TemporaryDirectory() so any practice files are removed after the context ends; it does not work on your real documents.
- The print() expressions display a checkable outcome. Print values and exception names are not substitutes for the program result itself.
Version requirement: the demonstrated method requires Python 3.14 or later and is available in Python. It is not available in Python 3.13. The example must be run using a compatible interpreter.
Important Details and Edge Cases
Metadata and symlink handling depend on the arguments and filesystem.
Before applying this to real documents, check whether the method reads data, creates a new file, moves it, or overwrites an existing file. Work in a disposable test directory first and handle OSError-related failures in applications.
Practice: Try It Yourself
Copy a temporary directory tree and compare the original with its destination.
Begin by copying the example into a separate practice file. Change one input at a time, run it again, and describe why the result changed. If the exercise writes or deletes files, keep it inside a temporary test folder.
Official Python Documentation
For the complete reference, see the Python standard library documentation.
Common Beginner Mistakes
- Assuming preserve_metadata=True is the default; only contents are guaranteed by default.
- Calling copy() on an older Python version where Path.copy() is unavailable.
- Before applying this to real documents, check whether the method reads data, creates a new file, moves it, or overwrites an existing file. Work in a disposable test directory first and handle OSError-related failures in applications.
Key Takeaways
- Copy a file or entire directory tree with Path.copy(), available in Python.
- Path.copy(target, follow_symlinks=True, preserve_metadata=False) returns a Path for the copy. It supports both individual files and directory trees, and may use copy-on-write on supported filesystems. The method was added in Python 3.14 and remains.
- Avoid this common pitfall: Assuming preserve_metadata=True is the default; only contents are guaranteed by default.