Some of you may get annoyed with this, but python variables don't "hold" values as stated in this one-pager; they are just references to objects in memory. The

Some of you may get annoyed with this, but python variables don't "hold" values as stated in this one-pager; they are just references to objects in memory. The same goes for dictionaries; they don't "hold" key-value pairs. They are references to hash-table objects in memory.