await.py

from IPython.core.magic import Magics, magics_class, line_magic
import asyncio


@magics_class
class AsyncMagics(Magics):
    @line_magic
    def await(self, line):
        return asyncio.get_event_loop().run_until_complete(eval(line, self.shell.user_global_ns, self.shell.user_ns))


def load_ipython_extension(ipython):
    ipython.register_magics(AsyncMagics)

I wanted to be able to use it with concurrent.futures as well, and ended up with the following:

from IPython.core.magic import Magics, magics_class, line_magic
import asyncio
from concurrent.futures import Future

@magics_class
class AsyncMagics(Magics):
    @line_magic
    def await(self, line):
        value = eval(line, self.shell.user_global_ns, self.shell.user_ns)
        if isinstance(value, Future):
            value = asyncio.wrap_future(value)
        return asyncio.get_event_loop().run_until_complete(value)


def load_ipython_extension(ipython):
    ipython.register_magics(AsyncMagics)

Could we make this pip installable, say as package "ipython-await-magics" (analogous to https://pypi.python.org/pypi/ipython-pip-magics)?

The reason I'm asking is because IPython deprecated %install_ext (ipython/ipython#8601). The recommended way of doing things is pip, apparently.

I would volunteer to do it. In that case, I guess you'd have to attach a license to await.py so I can use it.

(update: @chrisseto and @rickardraysearch, did you get notified about this?)

My ipython does not have %install_ext, I had to copy it into ~/.ipython/extensions/await.py. To autoload it on every start, you can set the following in the config file (probably ~/.ipython/profile_default/ipython_config.py):

c = get_config()
c.InteractiveShellApp.extensions = [
    'await'
]