What is the difference between local and global variables in Python?

In Python, the difference between local and global variables lies in their scope and accessibility:

1. Global Variables:

   • Defined outside of any function.
   • Accessible from any function within the same module.
   • Can be modified inside a function using the global keyword.

   Example:

   global_var = "I'm global"
   
   def access_global():
       print(global_var)  # Accessing global variable
   
   access_global()  # Output: I'm global

2. Local Variables:

   • Defined within a function.
   • Accessible only within that function.
   • Cannot be accessed outside the function.

   Example:

   def local_variable_example():
       local_var = "I'm local"
       print(local_var)  # Accessing local variable
   
   local_variable_example()  # Output: I'm local
   # print(local_var)  # This would raise a NameError

In summary, global variables can be accessed from anywhere in the module, while local variables are confined to the function in which they are defined.