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What is the use of the "globals" function in Python?

In Python, the globals() function is a built-in function used to return a dictionary that represents the current global symbol table. It retrieves a dictionary containing the global variables defined in the current module or the global namespace.

The general syntax of the globals() function is as follows:

globals()

Here's an example to demonstrate the usage of the globals() function:

x = 10
y = 20

global_vars = globals()

print(global_vars)  # Output: {'x': 10, 'y': 20, ...}

In this example, the globals() function is used to retrieve the dictionary of global variables. The resulting global_vars dictionary contains the variables 'x' and 'y' along with their corresponding values.

The globals() function is commonly used when you want to access or manipulate global variables programmatically. It allows you to retrieve the global symbol table as a dictionary, which can be useful for tasks such as introspection, debugging, or dynamic access to global variables.

It's important to note that the globals() function returns a dictionary representing the global symbol table at the time it is called. If you modify the global variables after calling globals(), the changes will be reflected in the returned dictionary.

Here's an example to demonstrate this:

x = 10

global_vars = globals()

print(global_vars)  # Output: {'x': 10, ...}

x = 20

print(global_vars)  # Output: {'x': 20, ...}

In this example, the global_vars dictionary reflects the changes made to the global variable x after calling globals().

Overall, the globals() function provides a convenient way to access the global symbol table as a dictionary, allowing you to work with global variables dynamically and programmatically.

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