The video tutorial explains Python namespaces, which organize variable names, including functions. It covers how to use the math namespace and import variables into the active namespace, highlighting potential risks. PEP 8 guidelines suggest placing import statements at the start of modules to avoid errors. The use of aliases in imports is discussed, noting both benefits and potential memory challenges.

Discuss the potential issues of using 'from import' in Python.

What are the advantages and disadvantages of using aliases when importing modules?