Getting error while import Eikon API

maxwilliams.boko
maxwilliams.boko Newcomer
in Eikon Data APIs

RuntimeError: There is no current event loop in thread 'ScriptRunner.scriptThread'.

Traceback:

File "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/site-packages/streamlit/script_runner.py", line 337, in _run_script
    exec(code, module.__dict__)File "/Users/maxwilliamsboko/Desktop/project.py", line 8, in <module>
    import eikon as ekFile "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/site-packages/eikon/__init__.py", line 12, in <module>
    from .Profile import *File "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/site-packages/eikon/Profile.py", line 17, in <module>
    from .streaming_session import DesktopSessionFile "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/site-packages/eikon/streaming_session/__init__.py", line 3, in <module>
    from .session import *File "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/site-packages/eikon/streaming_session/session.py", line 21, in <module>
    nest_asyncio.apply()File "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/site-packages/nest_asyncio.py", line 12, in apply
    loop = loop or asyncio.get_event_loop()File "/Users/maxwilliamsboko/opt/anaconda3/lib/python3.8/asyncio/events.py", line 639, in get_event_loop
    raise RuntimeError(&#39;There is no current event loop in thread %r.&#39;
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Best Answer

  • [Deleted User]
    [Deleted User] Newcomer
    Answer ✓

    Hi @maxwilliams.boko,

    Would you be so kind as to (i) let us know which version of Python you are using, (ii) which IDE you are running your code in, (iii) what OS you are running it on (Windows? MacOS? ...) and also (iv) share your code with us - what code did you run to come up with this error?

Answers

  • Shadab Hussain
    Shadab Hussain LSEG

    As I can see from the error message, you are using Anaconda and this error is coming since Eikon API is making use of nest_asyncio.py file. asyncio only generates an event loop for the main thread but in your case asyncio.get_event_loop() is running in some other thread instead of main thread.
    So a quick fix for this is to locate apply function in nest_asyncio.py file which is available at anaconda site packages folder:


        loop = asyncio.get_event_loop()
    if not isinstance(loop, asyncio.BaseEventLoop):
        raise ValueError(&#39;Can\&#39;t patch loop of type %s&#39; % type(loop))
    if getattr(loop, &#39;_nest_patched&#39;, None):
        # already patched        return    _patch_asyncio()
    _patch_loop(loop)
    _patch_task()
    _patch_tornado()def apply(loop=None):
    """Patch asyncio to make its event loop reentrant."""

    and replace

    loop = asyncio.get_event_loop()

    with

    loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)


    This will start a second event loop to run and will fix this error.

  • j.dessain
    j.dessain Newcomer

    I had the same problem and didn't manage to solve it with the proposed solution. I therefore deleted the lines of frontendcomm.py :

     else:  
         #This is needed for ipykernel 6+
         asyncio.run(handler(out_stream, ident, msg))

    and it works well !


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