Python is a high-level, interpreted programming language that is widely used in a variety of applications. With an extensive library of modules, a simple syntax and an interactive interpreter console, Python is a popular choice for developers of all levels of experience.
However, even experienced Python developers can sometimes get stuck on a specific issue or need to understand the use of a certain object. That is where the help() function comes in.
The help() function in Python is a built-in function that provides detailed documentation on a Python object. It is an invaluable tool for any beginner or experienced Python developer who wants to clarify any doubts or confusion.
The primary keywords for this topic are programming language and documentation. Whenever you come across a built-in function or any other specific Python object that you don’t understand, you can call the help() function in the interpreter console to get more information on it.
By using the help() function, you can get detailed information on any Python object, such as functions, modules, classes, or keywords. The working of the Python help() function primarily involves providing information on objects in the interpreter console, based on the parameters passed as the input.
A Python object that needs to be examined is simply supplied as an argument in the help() function, be it a module, function, class, keyword, or any other object. The help() function then displays detailed information on that object, showing what it does, how it works and how it can be used.
Using help() Function with Different Objects
The help() function can be used to provide documentation on various Python objects. These include a class, a function, a module and a keyword.
Each of these objects has unique properties that can be better understood with the help of the Python help() function. Help() with a Class:
A customized class is a significant part of any Python code.
It is a blueprint that defines the properties and behaviour of an object. Therefore, it is essential to understand the function, properties and methods of a particular class.
The help() function can provide such documentation. The help() function call with a class as an argument will show the defined class, its documentation, its methods (class functions), and its attributes (class variables).
Help() with a Function:
The syntax of a function along with the list of parameters, description and possible action of a function can be obtained by calling the help() function with the function as an argument. It provides a detailed description of the role played by input and output parameters of the function.
Additionally, help() function also explains how a function works in different cases. Help() with a Module:
A module is essentially a file that contains Python code, where all the necessary functions and classes have been defined to perform various tasks.
With help() function, several details regarding a module can be explored. For instance – the module contents, the file location, version, and other crucial information.
The help() function with a module as an argument can help you understand how to use a specific module, which functions it provides and how those functions can be used. Help() with a Keyword:
Python has several built-in keywords that have essential usage in coding when designing the necessary functions or their logic.
The help() function can provide a detailed description of each keyword. With help(), you can understand the usage of a Python keyword in context with a class, function and how it’s associated with other keywords.
Python help() function is a powerful tool that potentially enhances a developer’s productivity. It also serves as a learning tool as it improves a developer’s understanding of existing code since documentation is significant for beginners to get familiarized with different concepts.
By clarifying doubts, streamlining the development process; ultimately, helping to create higher quality code by providing comprehensive documentation. In summary, the Python help() function is a vital tool for Python developers of all levels.
With the ability to display comprehensive documentation on various objects such as classes, functions, modules, and keywords, developers can better understand how to use these in their code. The help() function offers a powerful way to clarify doubts, streamline the development process, and ultimately create better quality code.
Therefore, by using the Python help() function, developers can improve their productivity and understanding of Python’s extensive library of modules.