Python is a versatile programming language that comes with a wide range of built-in modules. These modules provide additional functionalities to enhance the capabilities of your Python programs. One of the useful modules in Python’s sys package is sys.builtin_module_names.

What is sys.builtin_module_names?

sys.builtin_module_names is a list that contains the names of all the built-in modules available in the Python interpreter. This list includes the modules that are compiled into the interpreter and are available for use without requiring any additional installation or import statements.

How to access sys.builtin_module_names?

To access the list of built-in module names, you need to import the sys module and then access the builtin_module_names attribute. Here’s an example:

import sys

# Access the list of built-in module names
builtin_modules = sys.builtin_module_names

# Print the names of the built-in modules
for module_name in builtin_modules:
    print(module_name)

The variable builtin_modules will contain a list of all the built-in module names. You can then process this list or use it for any further functionality as per your requirements.

Use cases of sys.builtin_module_names

1. Checking module availability: You can use the sys.builtin_module_names list to check if a specific module is available or if you need to handle alternative approaches in case the module is not present.
2. Dynamic module loading: If your program requires dynamically loading modules at runtime, you can compare the required module name with the sys.builtin_module_names list to determine whether it is a built-in module or not.

Conclusion

The sys.builtin_module_names attribute provides a convenient way to access the list of built-in module names available in Python. This list can be helpful in various scenarios, such as checking module availability or dynamically loading modules. Make sure to explore the official Python documentation for more details on the usage of this attribute and other useful modules in the sys package.