Code autocomplete

One of the most appealing features modern IDEs have is code autocomplete. IDEs allow you to eliminate typos, look up hard to remember variable names, and save time by removing the need to type long variable names over and over again.

Vim has some built-in autocomplete functionality, and there are plugins that expand upon this.

Built-in autocomplete

Vim supports native autocomplete based on words available in open buffers. It's available out of the box starting with Vim 7.0. Start by typing the beginning of a function name and hit Ctrl + n to bring up the autocomplete list. You can navigate the list using Ctrl + n and Ctrl + p. For example, open animal_farm.py, enter insert mode, and start typing the...