old_contents: import sys
  
  
  def auto_loop_setup():
      try:
          import uvloop
      except ImportError as exc:  # pragma: no cover
          if sys.platform == "win32":
              from uvicorn.loops.iocp import iocp_setup as loop_setup
          else:
              from uvicorn.loops.asyncio import asyncio_setup as loop_setup
  
          loop_setup()
      else:
          from uvicorn.loops.uvloop import uvloop_setup
  
          uvloop_setup()
  
new_contents: import sys
  
  
  def auto_loop_setup():
      try:
          import uvloop
      except ImportError as exc:  # pragma: no cover
          from uvicorn.loops.asyncio import asyncio_setup as loop_setup
  
          loop_setup()
      else:
          from uvicorn.loops.uvloop import uvloop_setup
  
          uvloop_setup()
  
subject: Switch windows default loop from IOCP to Asyncio (#513)