In the IPython shell, we can open a list of available commands using the help command. It is not compulsory to write the full name of the function. You can just type in a few initial characters and then press the tab button, and it will find the word you are looking for. For example, let's use the arrange() function. There are two ways we can find help about functions:
- Use the help function: Let's type help and write a few initial characters of the function. After that, press the tab key, select a function using the arrow keys, and press the Enter key:
- Use a question mark: We can also use a question mark after the name of the function. The following screenshot shows an example of this:
In this subsection, we looked at the help and question mark support that's provided for module functions. We can also get help from library documentation. Let's discuss how to get documentation for data analysis in Python libraries.