* ✏ Fix typo in docs. PR [#2179](https://github.com/tiangolo/fastapi/pull/2179) by [@ammarasmro](https://github.com/ammarasmro).
* 📝 Update/fix links in docs to use HTTPS. PR [#2165](https://github.com/tiangolo/fastapi/pull/2165) by [@imba-tjd](https://github.com/imba-tjd).
* ✏ Fix typos and add rewording in docs. PR [#2159](https://github.com/tiangolo/fastapi/pull/2159) by [@nukopy](https://github.com/nukopy).

## Create a Pull Request

You can [contribute](contributing.md){.internal-link target=_blank} to the source code with Pull Requests, for example:

* To fix a typo you found on the documentation.

But doing that, in some minutes or hours the attackers would have guessed the correct username and password, with the "help" of our application, just using the time taken to answer.

#### Fix it with `secrets.compare_digest()`

But in our code we are actually using `secrets.compare_digest()`.

```

Because the editor knows the types of the variables, you don't only get completion, you also get error checks:

<img src="/img/python-types/image04.png">

Now you know that you have to fix it, convert `age` to a string with `str(age)`:

```Python hl_lines="2"
{!../../../docs_src/python_types/tutorial004.py!}
```

## Declaring types

It should be this way because if you have a Pydantic `ValidationError` in your *response* or anywhere in your code (not in the client's *request*), it's actually a bug in your code.

And while you fix it, your clients/users shouldn't have access to internal information about the error, as that could expose a security vulnerability.

### Override the `HTTPException` error handler

And as your app starts to handle more and more clients at the same time, the waiting time in a single request needs to be shorter and shorter to trigger the error.

### Fix Peewee with FastAPI

Now go back to the file `sql_app/database.py`, and uncomment the line:

```Python
db._state = PeeweeConnectionState()
```

This was changed in version 0.110.0 to fix unhandled memory consumption from forwarded exceptions without a handler (internal server errors), and to make it consistent with the behavior of regular Python code.

### Background Tasks and Dependencies with `yield`, Technical Details