如何将Python中的二进制转换为Postgresql中的bytea数据类型

所以我有一个图像，我通过

.read（）

读取它的内容，它是

UploadFile

类的一部分，我相信它是以字节为单位读取的。要将bytes对象转换为

bytea

数据类型，我使用了

psycopg2.Binary（）

这是我的代码，用于从图像中读取字节并尝试通过
bytea
数据类型将其存储在Postgresql中

image\u数组=[]
对于图像中的图像\u上载：
contents=wait image.read（）
图像\数组.追加（内容）
#添加图像验证
对于zip（p、c、t、image_数组）中的（权限、文本、特征、图像）：
查询=（“插入图像（权限、文本、特征、创建日期、用户id、img）”
f“值（{permission}，{text}，”
f“{characteristics}”
f“，{func.now（）}，{result[0]['id']}”
f“，”{psycopg2.Binary（image）}'））
等待database.execute（query=query）

这是痕迹

INFO:     127.0.0.1:53168 - "POST /add/?api_key=stringstring&texts=string&characteristics=string&permissions=string HTTP/1.1" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 396, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__
    return await self.app(scope, receive, send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/fastapi/applications.py", line 199, in __call__
    await super().__call__(scope, receive, send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/applications.py", line 111, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/routing.py", line 566, in __call__
    await route.handle(scope, receive, send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/routing.py", line 227, in handle
    await self.app(scope, receive, send)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/starlette/routing.py", line 41, in app
    response = await func(request)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/fastapi/routing.py", line 201, in app
    raw_response = await run_endpoint_function(
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/fastapi/routing.py", line 148, in run_endpoint_function
    return await dependant.call(**values)
  File "./app/controllers/add.py", line 49, in add_images
    await database.execute(query=query)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/databases/core.py", line 161, in execute
    return await connection.execute(query, values)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/databases/core.py", line 263, in execute
    return await self._connection.execute(built_query)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/databases/backends/postgres.py", line 188, in execute
    query, args, result_columns = self._compile(query)
  File "/Users/admin/Library/Caches/pypoetry/virtualenvs/backend-DSfoN2Wn-py3.9/lib/python3.9/site-packages/databases/backends/postgres.py", line 221, in _compile
    compiled_query = compiled.string % mapping
KeyError: '$fu'

如果您将完整的错误跟踪作为问题的一部分将更好。添加的错误跟踪您正在将所有内容转换为字符串，请看：您正在使用SyncIO，这是psycopg2不支持的。但在我没有二进制转换的情况下，这是有效的