Hello Emman,

I hope you're doing well.

1) Typically, you don't need to manually refresh or reload a module each time you make changes to your Python code within that module. Python includes built-in mechanisms to handle module reloading automatically in many cases. Nevertheless, there are certain scenarios where you may need to take action to ensure that your changes are reflected, such as long-running processes and caching.

2) Whether you need to open pgAdmin when you're developing depends on your specific development workflow and requirements. This includes tasks like database management, querying and debugging, backup and restore, and more.

I hope this information proves helpful to you.

Thanks & Regards,
Email: odoo@aktivsoftware.com 

Skype: kalpeshmaheshwari