gr1n / asyncio-ipython-magic

An extension for IPython that help to run AsyncIO code in your interactive session

asyncio-ipython-magic

An extension for IPython that help to run AsyncIO code in your interactive session.

Based on Gist.

Installation

Install asyncio-ipython-magic using pip:

$ pip install asyncio-ipython-magic

...or directly from the repository using the %install_ext magic command:

$ In[1]: %install_ext https://raw.githubusercontent.com/Gr1N/asyncio-ipython-magic/master/asynciomagic.py

Enjoy!

Usage

In [1]: %load_ext asynciomagic

In [2]: import asyncio

In [3]: import time

In [4]: async def foo():
   ...:     i = 0
   ...:     while i < 3:
   ...:         print('time =', time.time())
   ...:         i += 1
   ...:         await asyncio.sleep(2)
   ...:

In [5]: %%async_
   ...: await foo()
   ...:
time = 1478985421.307329
time = 1478985423.309606
time = 1478985425.31514

In [6]: %await_ foo()
time = 1487097377.700184
time = 1487097379.705614
time = 1487097381.707186

In [7]:

Testing

It just works, I hope.

License

asyncio-ipython-magic is licensed under the MIT license. See the license file for details.

asyncio-ipython-magic's Issues

release a bdist_wheel

python3 setup.py bdist_wheel upload

simple inline mode

>> %await foo();

extension is not ^C-safe

For example:

In [1]: import asyncio
In [2]: l = asyncio.Lock()
In [7]: %await_ l
# OK
In [8]: %await_ l
# waits forever, since lock is already taken, so let's break it:
^C---------------------------------------------------------------------------
KeyboardInterrupt
[backtrace omitted]
KeyboardInterrupt:

In [10]: l.release()
# OK
In [11]: %await_ l
---------------------------------------------------------------------------
RuntimeError
[backtrace omitted]
~/.pyenv/versions/3.6.1/lib/python3.6/asyncio/base_events.py in run_until_complete(self, future)
    462         future.remove_done_callback(_run_until_complete_cb)
    463         if not future.done():
--> 464             raise RuntimeError('Event loop stopped before Future completed.')
    465
    466         return future.result()

RuntimeError: Event loop stopped before Future completed.