dbapi | 基于HTML爬虫的豆瓣小组API

params argument is not "Templated", so it would only render strings. So move your param directly to SQL

For completeness, moving the answer from @Clement in a comment to an answer:

This error can happen when loading the oscrypto (libcrypto) if the memory usage is too high. The OOM state cascades upward.

I successfully fixed it!

The mistake was that, I just mentioned the password in the posgres_deployment.yaml file, but I should also mention the database name and the username, using which the web_deployment.yaml is trying to access this db service.

Now the new postgres_deployment.yaml file, after the correction, looks like this:

I found the answer in this question. The problem described in this question is not the same as mine (the alembic didn't create an empty migration file in this case) though. That's why I asked the question here (may be seen as duplicated).

So as the answer suggested, I commented the Base.metadata.create_all(engine) in the __init__.py. It is this line of code that creates the user table (if it not exist). So when alembic checks my database, the table is already there. Since no differences are found, the upgrade() and downgrade() are empty.

nobody answered this question, but magically on 20th April:

https://github.com/preset-io/elasticsearch-dbapi/releases/tag/0.2.3

I think you're hitting this issue because you're using PyMySQL.

The issue was fixed in ticket 30380, but wasn't backported to Django 2.2.X because Django doesn't officially support PyMySQL.

Some options are:

• Upgrade to Django 3.0.X+
• Switch from PyMySQL to mysqlclient
• patch your version of Django 2.2 (see the fix here)

I think problem is in ApScheduler.

What is happening is that scheduler.start() will attempt to create the job table in your database. But since your database url is specified as +asyncpg and there is no async coroutine running (ie: async def) when ApScheduler tries to create the table. Hence the "coroutine 'connect' was never awaited" error.

After reading the ApScheduler code, I think "integrates with asyncio" is a little misleading - specifically the scheduler can run asyncio, but the JobStore itself has no provision for an asyncio database connection.

You can get it working by removing +asyncpg in the connection url used with ApScheduler.

Note it would still be possible to use async db calls within job functions with a separate asyncpg connection.

By default Python will combine class variables with two leading underscores with the class name - this is known as name mangling.

If the column in the database has two leading underscores you can specify it in the column definition, and assign the class variable to a name without leading underscores.

In the documentation on ALTER TABLE the text data_type refers to your data type, not the literal word. It's in bold-italic meaning "placeholder name".

Easy fix: