NotImplementedError asynchronous - postgresql

Question

I'm trying to use fastapi connect to Postgresql with async,but I got a NotimplementError,
It's seems the coderecord = await objects.get(test5, orderId=result['orderId'])
cause this problem.
but I don't know how to fixed it
there is some solution in network,but it did'n work
import platform
import asyncio
if platform.system() == "Windows":
asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
*code
import peewee_async
import peewee_asyncext
from fastapi import FastAPI
from playhouse.postgres_ext import *
db = peewee_asyncext.PooledPostgresqlExtDatabase(
database = 'postgres',
host = '127.17.0.2',
port = '5432',
user = 'postgres',
password = 1234,
register_hstore = False,
max_connections = 20,
connect_timeout = 3
)
objects = peewee_async.Manager(database =db)
db.set_allow_sync = False
class test5(Model):
orderId = FixedCharField(primary_key = True)
transactionId = FixedCharField()
class Meta:
database = db
table_name = 'test'
app = FastAPI()
#app.post("/test")
async def test():
result = {
"orderId":"test",
"transactionId":"123"
}
try:
record = await objects.get(test5, orderId=result['orderId'])
except Exception as e:
if str(e) == "":
await objects.execute(test5.insert(result))
return result
*request
import requests,json
data={}
url='http://127.0.0.1:8000/test'
r=requests.post(url,json.dumps(data))
print(r.text)
*error
Future exception was never retrieved
future: <Future finished exception=NotImplementedError()>
Traceback (most recent call last):
File "D:\Python\lib\site-packages\peewee_async.py", line 852, in connect_async
await conn.connect()
File "D:\Python\lib\site-packages\peewee_async.py", line 1014, in connect
self.pool = await aiopg.create_pool(
File "D:\Python\lib\site-packages\aiopg\pool.py", line 300, in from_pool_fill
await self._fill_free_pool(False)
File "D:\Python\lib\site-packages\aiopg\pool.py", line 336, in _fill_free_pool
conn = await connect(
File "D:\Python\lib\site-packages\aiopg\connection.py", line 65, in connect
connection = Connection(
File "D:\Python\lib\site-packages\aiopg\connection.py", line 772, in __init__
self._loop.add_reader(
File "D:\Python\lib\asyncio\events.py", line 504, in add_reader
raise NotImplementedError
NotImplementedError
Future exception was never retrieved
future: <Future finished exception=NotImplementedError()>
Traceback (most recent call last):
File "C:\Users\user\Desktop\test\others\.\test5.py", line 39, in test
record = await objects.get(test5, orderId=result['orderId'])
File "D:\Python\lib\site-packages\peewee_async.py", line 166, in get
await self.connect()
File "D:\Python\lib\site-packages\peewee_async.py", line 302, in connect
await self.database.connect_async(loop=self.loop, timeout=self._timeout)
File "D:\Python\lib\site-packages\peewee_async.py", line 852, in connect_async
await conn.connect()
File "D:\Python\lib\site-packages\peewee_async.py", line 1014, in connect
self.pool = await aiopg.create_pool(
File "D:\Python\lib\site-packages\aiopg\pool.py", line 300, in from_pool_fill
await self._fill_free_pool(False)
File "D:\Python\lib\site-packages\aiopg\pool.py", line 336, in _fill_free_pool
conn = await connect(
File "D:\Python\lib\site-packages\aiopg\connection.py", line 65, in connect
connection = Connection(
File "D:\Python\lib\site-packages\aiopg\connection.py", line 772, in __init__
self._loop.add_reader(
File "D:\Python\lib\asyncio\events.py", line 504, in add_reader
raise NotImplementedError
NotImplementedError
*Windows version info:
Python 3.9.10 (tags/v3.9.10:f2f3f53, Jan 17 2022, 15:14:21) [MSC v.1929 64 bit (AMD64)] on
win32
Windows 10 Pro, version 20H2, OS build 19042.1526