From ... import ... The difference between the usage and the direct import
When using import directly, if you need to use the properties and methods within the import module, you must use the module name. property and module name. method to invoke
Use From...improt ... , you can directly use the properties and methods within the module, equivalent to the module is imported directly into the local namespace, so he can directly use, do not need to add a module name to qualify.
However , because the module contains properties and methods that might have the same name as one of your modules, it can cause a conflict. So use the From module import as little as possible ... , because it is difficult to determine where a particular function and property comes from, and it can cause debugging and refactoring difficulties.
From for notes (Wiz)
From ... import ... The difference between the usage and the direct import
