In Python, the globals()
function is a built-in function that returns a dictionary containing the current global symbol table. It returns a dictionary representing the current global namespace, where global variables, functions, and classes are stored.
Here's an example to demonstrate the usage of the globals()
function:
def my_function():
x = 10
y = 20
print(globals()) # Print the global symbol table
my_function()
{'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>, '__file__': 'main.py', '__cached__': None, 'my_function': <function my_function at 0x7f0aa43a4e50>, 'x': 10, 'y': 20}
In the example above, we define a function called my_function()
. Inside the function, we have two variables, x
and y
. By calling globals()
within the function and printing its output, we can see that it returns a dictionary containing the global symbol table, which includes the names of the built-in variables, functions, classes, as well as the variables x
and y
defined within the my_function()
.
Note that the globals()
function can also be used outside of functions to obtain the global symbol table of the entire module or script.