Several students are experiencing 'inconsistent indentation' errors when editing and then executing the sample files.

Current Formating: The sample files (today) are using tabs for indentation.

Problem: The default settings of the Notepad++ editor that many of them are using defaults to converting tabs-to-spaces. When they add new lines to the sample files, their editor is replacing their 'tabs' to spaces and causing the execution errors.

Recommendation: PEP 8 recommends using spaces as the 'leading practice', and recommends that "Tabs should be used solely to remain consistent with code that is already indented with tabs."

Either way (whether we go with tabs or spaces), I recommend that the sample-code files and the IDE settings (at least those in the dCloud environment) be set to use the same formatting. Additionally, with spaces being the 'leading practice', defaulting to this would likely provide greater 'compatibility' with IDEs on users' laptops.