240 lines
6.9 KiB
Plaintext
240 lines
6.9 KiB
Plaintext
|
Metadata-Version: 2.1
|
||
|
Name: aiofiles
|
||
|
Version: 0.8.0
|
||
|
Summary: File support for asyncio.
|
||
|
License: Apache-2.0
|
||
|
Author: Tin Tvrtkovic
|
||
|
Author-email: tinchester@gmail.com
|
||
|
Requires-Python: >=3.6,<4.0
|
||
|
Classifier: License :: OSI Approved :: Apache Software License
|
||
|
Classifier: Programming Language :: Python :: 3
|
||
|
Classifier: Programming Language :: Python :: 3.6
|
||
|
Classifier: Programming Language :: Python :: 3.7
|
||
|
Classifier: Programming Language :: Python :: 3.8
|
||
|
Classifier: Programming Language :: Python :: 3.9
|
||
|
Classifier: Programming Language :: Python :: 3.10
|
||
|
Description-Content-Type: text/x-rst
|
||
|
|
||
|
aiofiles: file support for asyncio
|
||
|
==================================
|
||
|
|
||
|
.. image:: https://img.shields.io/pypi/v/aiofiles.svg
|
||
|
:target: https://pypi.python.org/pypi/aiofiles
|
||
|
|
||
|
.. image:: https://travis-ci.org/Tinche/aiofiles.svg?branch=master
|
||
|
:target: https://travis-ci.org/Tinche/aiofiles
|
||
|
|
||
|
.. image:: https://codecov.io/gh/Tinche/aiofiles/branch/master/graph/badge.svg
|
||
|
:target: https://codecov.io/gh/Tinche/aiofiles
|
||
|
|
||
|
.. image:: https://img.shields.io/pypi/pyversions/aiofiles.svg
|
||
|
:target: https://github.com/Tinche/aiofiles
|
||
|
:alt: Supported Python versions
|
||
|
|
||
|
**aiofiles** is an Apache2 licensed library, written in Python, for handling local
|
||
|
disk files in asyncio applications.
|
||
|
|
||
|
Ordinary local file IO is blocking, and cannot easily and portably made
|
||
|
asynchronous. This means doing file IO may interfere with asyncio applications,
|
||
|
which shouldn't block the executing thread. aiofiles helps with this by
|
||
|
introducing asynchronous versions of files that support delegating operations to
|
||
|
a separate thread pool.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
async with aiofiles.open('filename', mode='r') as f:
|
||
|
contents = await f.read()
|
||
|
print(contents)
|
||
|
'My file contents'
|
||
|
|
||
|
Asynchronous iteration is also supported.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
async with aiofiles.open('filename') as f:
|
||
|
async for line in f:
|
||
|
...
|
||
|
|
||
|
Asynchronous interface to tempfile module.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
async with aiofiles.tempfile.TemporaryFile('wb') as f:
|
||
|
await f.write(b'Hello, World!')
|
||
|
|
||
|
|
||
|
Features
|
||
|
--------
|
||
|
|
||
|
- a file API very similar to Python's standard, blocking API
|
||
|
- support for buffered and unbuffered binary files, and buffered text files
|
||
|
- support for ``async``/``await`` (:PEP:`492`) constructs
|
||
|
- async interface to tempfile module
|
||
|
|
||
|
|
||
|
Installation
|
||
|
------------
|
||
|
|
||
|
To install aiofiles, simply:
|
||
|
|
||
|
.. code-block:: bash
|
||
|
|
||
|
$ pip install aiofiles
|
||
|
|
||
|
Usage
|
||
|
-----
|
||
|
|
||
|
Files are opened using the ``aiofiles.open()`` coroutine, which in addition to
|
||
|
mirroring the builtin ``open`` accepts optional ``loop`` and ``executor``
|
||
|
arguments. If ``loop`` is absent, the default loop will be used, as per the
|
||
|
set asyncio policy. If ``executor`` is not specified, the default event loop
|
||
|
executor will be used.
|
||
|
|
||
|
In case of success, an asynchronous file object is returned with an
|
||
|
API identical to an ordinary file, except the following methods are coroutines
|
||
|
and delegate to an executor:
|
||
|
|
||
|
* ``close``
|
||
|
* ``flush``
|
||
|
* ``isatty``
|
||
|
* ``read``
|
||
|
* ``readall``
|
||
|
* ``read1``
|
||
|
* ``readinto``
|
||
|
* ``readline``
|
||
|
* ``readlines``
|
||
|
* ``seek``
|
||
|
* ``seekable``
|
||
|
* ``tell``
|
||
|
* ``truncate``
|
||
|
* ``writable``
|
||
|
* ``write``
|
||
|
* ``writelines``
|
||
|
|
||
|
In case of failure, one of the usual exceptions will be raised.
|
||
|
|
||
|
The ``aiofiles.os`` module contains executor-enabled coroutine versions of
|
||
|
several useful ``os`` functions that deal with files:
|
||
|
|
||
|
* ``stat``
|
||
|
* ``sendfile``
|
||
|
* ``rename``
|
||
|
* ``replace``
|
||
|
* ``remove``
|
||
|
* ``mkdir``
|
||
|
* ``makedirs``
|
||
|
* ``rmdir``
|
||
|
* ``removedirs``
|
||
|
* ``path.exists``
|
||
|
* ``path.isfile``
|
||
|
* ``path.isdir``
|
||
|
* ``path.getsize``
|
||
|
* ``path.getatime``
|
||
|
* ``path.getctime``
|
||
|
* ``path.samefile``
|
||
|
* ``path.sameopenfile``
|
||
|
|
||
|
Tempfile
|
||
|
~~~~~~~~
|
||
|
|
||
|
**aiofiles.tempfile** implements the following interfaces:
|
||
|
|
||
|
- TemporaryFile
|
||
|
- NamedTemporaryFile
|
||
|
- SpooledTemporaryFile
|
||
|
- TemporaryDirectory
|
||
|
|
||
|
Results return wrapped with a context manager allowing use with async with and async for.
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
async with aiofiles.tempfile.NamedTemporaryFile('wb+') as f:
|
||
|
await f.write(b'Line1\n Line2')
|
||
|
await f.seek(0)
|
||
|
async for line in f:
|
||
|
print(line)
|
||
|
|
||
|
async with aiofiles.tempfile.TemporaryDirectory() as d:
|
||
|
filename = os.path.join(d, "file.ext")
|
||
|
|
||
|
|
||
|
Writing tests for aiofiles
|
||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
||
|
Real file IO can be mocked by patching ``aiofiles.threadpool.sync_open``
|
||
|
as desired. The return type also needs to be registered with the
|
||
|
``aiofiles.threadpool.wrap`` dispatcher:
|
||
|
|
||
|
.. code-block:: python
|
||
|
|
||
|
aiofiles.threadpool.wrap.register(mock.MagicMock)(
|
||
|
lambda *args, **kwargs: threadpool.AsyncBufferedIOBase(*args, **kwargs))
|
||
|
|
||
|
async def test_stuff():
|
||
|
data = 'data'
|
||
|
mock_file = mock.MagicMock()
|
||
|
|
||
|
with mock.patch('aiofiles.threadpool.sync_open', return_value=mock_file) as mock_open:
|
||
|
async with aiofiles.open('filename', 'w') as f:
|
||
|
await f.write(data)
|
||
|
|
||
|
mock_file.write.assert_called_once_with(data)
|
||
|
|
||
|
History
|
||
|
~~~~~~~
|
||
|
0.8.0 (2021-11-27)
|
||
|
``````````````````
|
||
|
* aiofiles is now tested on Python 3.10.
|
||
|
* Added ``aiofiles.os.replace``.
|
||
|
`#107 <https://github.com/Tinche/aiofiles/pull/107>`_
|
||
|
* Added ``aiofiles.os.{makedirs, removedirs}``.
|
||
|
* Added ``aiofiles.os.path.{exists, isfile, isdir, getsize, getatime, getctime, samefile, sameopenfile}``.
|
||
|
`#63 <https://github.com/Tinche/aiofiles/pull/63>`_
|
||
|
* Added `suffix`, `prefix`, `dir` args to ``aiofiles.tempfile.TemporaryDirectory``.
|
||
|
`#116 <https://github.com/Tinche/aiofiles/pull/116>`_
|
||
|
|
||
|
0.7.0 (2021-05-17)
|
||
|
``````````````````
|
||
|
- Added the ``aiofiles.tempfile`` module for async temporary files.
|
||
|
`#56 <https://github.com/Tinche/aiofiles/pull/56>`_
|
||
|
- Switched to Poetry and GitHub actions.
|
||
|
- Dropped 3.5 support.
|
||
|
|
||
|
0.6.0 (2020-10-27)
|
||
|
``````````````````
|
||
|
- `aiofiles` is now tested on ppc64le.
|
||
|
- Added `name` and `mode` properties to async file objects.
|
||
|
`#82 <https://github.com/Tinche/aiofiles/pull/82>`_
|
||
|
- Fixed a DeprecationWarning internally.
|
||
|
`#75 <https://github.com/Tinche/aiofiles/pull/75>`_
|
||
|
- Python 3.9 support and tests.
|
||
|
|
||
|
0.5.0 (2020-04-12)
|
||
|
``````````````````
|
||
|
- Python 3.8 support. Code base modernization (using ``async/await`` instead of ``asyncio.coroutine``/``yield from``).
|
||
|
- Added ``aiofiles.os.remove``, ``aiofiles.os.rename``, ``aiofiles.os.mkdir``, ``aiofiles.os.rmdir``.
|
||
|
`#62 <https://github.com/Tinche/aiofiles/pull/62>`_
|
||
|
|
||
|
|
||
|
0.4.0 (2018-08-11)
|
||
|
``````````````````
|
||
|
- Python 3.7 support.
|
||
|
- Removed Python 3.3/3.4 support. If you use these versions, stick to aiofiles 0.3.x.
|
||
|
|
||
|
0.3.2 (2017-09-23)
|
||
|
``````````````````
|
||
|
- The LICENSE is now included in the sdist.
|
||
|
`#31 <https://github.com/Tinche/aiofiles/pull/31>`_
|
||
|
|
||
|
0.3.1 (2017-03-10)
|
||
|
``````````````````
|
||
|
|
||
|
- Introduced a changelog.
|
||
|
- ``aiofiles.os.sendfile`` will now work if the standard ``os`` module contains a ``sendfile`` function.
|
||
|
|
||
|
Contributing
|
||
|
~~~~~~~~~~~~
|
||
|
Contributions are very welcome. Tests can be run with ``tox``, please ensure
|
||
|
the coverage at least stays the same before you submit a pull request.
|
||
|
|