ARNING: `mpl_finance` is deprecated: Please use `mplfinance` instead (no hyphen, no underscore). To install: `pip install --upgrade mplfinance` For more information, see: https://pypi.org/project/mplfinance/ ================================================================= __warnings.warn('\n\n ================================================================='+

嗨！很高兴回答你的问题。关于`mpl_finance`的警告，它已被弃用，建议使用`mplfinance`代替（无连字符，无下划线）。你可以使用以下命令进行安装：`pip install --upgrade mplfinance`。有关更多信息，请参阅[这个链接](https://pypi.org/project/mplfinance/)。

相关问题

arning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).

The warning you mentioned is related to the use of the `apt-key` command in managing keyring files for package repositories in Debian-based systems. Starting from Ubuntu 20.04 and Debian 10, the `apt-key` command has been deprecated, and it is recommended to manage keyring files in the `trusted.gpg.d` directory instead.

To address this warning, you can follow these steps:

1. Open a terminal.
2. Create a new file in the `trusted.gpg.d` directory:

   sudo touch /etc/apt/trusted.gpg.d/custom.gpg

3. Import the GPG key using the `gpg` command:

   sudo gpg --dearmor --output /etc/apt/trusted.gpg.d/custom.gpg /path/to/keyfile.gpg

Replace `/path/to/keyfile.gpg` with the actual path to the GPG key file you want to import.
4. Update the package lists:

   sudo apt update

By following these steps, you should be able to manage keyring files without triggering the deprecated warning.

arning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)). gpg: 找不到有效的 OpenPGP 数据。

这个警告是因为最近apt-key命令被宣布为废弃，被`gpg`命令代替。你可以使用以下命令来添加 GPG 密钥：

sudo gpg --no-default-keyring --keyring gnupg-ring:/etc/apt/trusted.gpg.d/pubkey.gpg --import <keyfile>

其中，`<keyfile>` 是你下载的 GPG 密钥文件的路径。这个命令会将密钥添加到 `/etc/apt/trusted.gpg.d/` 目录下，并且不会使用默认密钥环。