It seems like you're referring to a specific software or package named "Python10" and mentioning that it's not available in the manager. However, as of my last training data in September 2021, I don't have any specific information about a package named "Python10" or "manager."

If "Python10" is a custom or specialized package, you might need to manually install it on your system. Ensure that you've checked for typos in the package name and that it's compatible with your system.

If "manager" is a tool or a package repository manager, you might want to consult its documentation or community support for assistance.

For the most up-to-date information, please refer to the official documentation of the specific packages or tools you're working with. If these are specific to your organization or a particular software suite, consulting internal resources or support channels might be helpful.