"Forget" about indentaition. You should still write beautiful code, but if you mess up with tabs/spaces, or copy one piece of code to another that uses a different indentation style, it won't break.

Extended header section of parsable attributes, introduced by '#'. Header row of variable name and units for each column. Data rows. Depending on the presence of special keys in the extended header ...

Tired of out-of-memory errors derailing your data analysis? There's a better way to handle huge arrays in Python.