Pull_session doesn't work if i don't include 'from bokeh.server.server import Server' statement which i am not using anywhere

Bryan · October 8, 2020, 5:03pm

@Gopi_M You could do that I suppose, but no, what I meant is to use an if test to run different code on different platforms. This is what Bokeh does:

github.com

bokeh/bokeh/blob/dcaeba25b720528e32460a988a364733389fcd5f/bokeh/util/tornado.py#L48-L54

    
      
          def fixup_windows_event_loop_policy() -> None:
              if sys.platform == 'win32' and sys.version_info[:3] >= (3, 8, 0):
                  import asyncio
                  if type(asyncio.get_event_loop_policy()) is asyncio.WindowsProactorEventLoopPolicy:
                      # WindowsProactorEventLoopPolicy is not compatible with tornado 6
                      # fallback to the pre-3.8 default of WindowsSelectorEventLoopPolicy
                      asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())