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importlib-resources

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library7.1.0pypypi✓ verified 24d ago

A backport of Python's importlib.resources module, providing access to resources within packages. Current version: 6.5.2. Release cadence: Regular updates with recent releases in January 2025.

pip install importlib-resources
INSTALL
IMPORT
SIG · IMPORTLIB-RESOURCE
I
importlib-resources
datapythonv7.1.0
Install
1.7s avg
Import
54ms
Disk
16MB
Pass rate
10/ 10
Env Coverage10 / 10
glibc
3.93.13
musl
3.93.13
Install & Compatibility
Where this runs
tested against v7.1.0 · pip install
no network on importno background threads
Install × environment matrix
Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux
musl
py 3.103.95 runs
installs and imports cleanly · install 0.0s · import 0.056s · 18.1MB
glibc
py 3.103.95 runs
installs and imports cleanly · install 1.7s · import 0.052s · 19MB
16MB installed
● package 16MB
Code
Verified usage

Verified import paths — ran on the pinned version, not inferred.

files
from importlib_resources import files
Ensure correct import path to access package resources

Access a text file within the package using importlib-resources

import os from importlib_resources import files # Access a text file within the package resource = files('my_package').joinpath('data', 'example.txt').read_text() print(resource)
Debug
Known issues
breakingEditable installs may cause issues with importlib_resources.files
fix
Use standard installation methods or handle editable installs appropriately
affects: 6.4.0
gotchaAccessing resources as file paths may fail when package is bundled in a zip file
fix
Use functions like read_text() or read_binary() to access resource contents directly
affects: All
breakingModuleNotFoundError indicates the package could not be found or imported. This typically means the package is not installed or not correctly available in the Python path.
fix
Ensure the required package is properly installed and accessible in the Python environment (e.g., by running `pip install my_package`).
affects: All
breaking`importlib_resources` functions, such as `files()`, require the specified package to be discoverable and importable by Python. A `ModuleNotFoundError` indicates that Python cannot find the target package.
fix
Ensure the package (e.g., 'my_package' in this case) is correctly installed in the Python environment (e.g., via `pip install my_package` or `pip install .`), or that its location is added to `sys.path` (e.g., using `PYTHONPATH`).
affects: All
Errors
Common errors & fixes
ModuleNotFoundError: No module named 'importlib.resources'
This error occurs when trying to use `importlib.resources` on a Python version older than 3.7. The `importlib.resources` module became part of the standard library in Python 3.7, and for earlier versions, a separate backport library is required.
fix
For Python versions prior to 3.7, install the backport library using `pip install importlib-resources` and then import it as `import importlib_resources`. If on Python 3.7 or newer, ensure your Python environment is correctly set up.
AttributeError: module 'importlib.resources' has no attribute 'files'
The `files()` function, and subsequently the `Traversable` API (including methods like `read_text` accessed via `files()`), was introduced in Python 3.9. This error indicates you are using an older Python version (e.g., 3.7 or 3.8) or an outdated version of the `importlib-resources` backport that does not yet include this functionality.
fix
Upgrade your Python version to 3.9 or newer. If you must use an older Python, ensure you have the latest compatible `importlib-resources` backport installed (`pip install --upgrade importlib-resources`) and be aware that the `files()` API might not be available or behave differently in older backport versions, requiring you to use the older `importlib.resources.read_text()` or `importlib.resources.open_binary()` functions instead.
FileNotFoundError: Package has no location <module 'your_package' (namespace)>
This error typically arises when `importlib.resources` attempts to locate a resource within a namespace package (PEP 420-style package without an `__init__.py` file) that might not have a single, discernible file system location, or when the resource itself is not properly included in the package distribution. It can also occur if the package cannot resolve its `__spec__.origin` or if the resource is genuinely missing or misconfigured in `setup.py`/`pyproject.toml`.
fix
Ensure that the resource file is correctly included in your package data (e.g., via `include_package_data=True` and `package_data` in `setup.py` or `[tool.setuptools.package-data]` in `pyproject.toml`). For namespace packages, verify your packaging configuration. Sometimes ensuring that the package you are referencing is indeed a regular package (with an `__init__.py` in older Python versions) can resolve this. If running a script directly, try running it as a module (e.g., `python -m your_package.your_script`) to ensure correct package context.
UnicodeDecodeError: 'charmap' codec can't decode byte ... in position ...: character maps to <undefined>
This error occurs when `importlib.resources.read_text()` (or `open_text()`) tries to decode a resource file using an incorrect character encoding. By default, it often assumes UTF-8, but files saved with different encodings (common on Windows with system-dependent encodings like `cp1252`) will cause this error if not specified correctly.
fix
Explicitly specify the correct encoding when calling `read_text()` or `open_text()`. For example, if the file is saved with Latin-1 encoding, use `importlib.resources.read_text(package, 'resource.txt', encoding='latin-1')` or `importlib.resources.files(package).joinpath('resource.txt').read_text(encoding='latin-1')`.
Upgrade
Version history
7.1.0latest on PyPI · released Apr 12, 2026
Audit
Dependencies
importlib-metadataoptionalProvides backport of importlib for older Python versions
Agent activity
11 hits · last 30 days
node
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Resources
importlib-resources — pip install importlib-resources · libregistry