Local Variables in Python: Understanding Function-Level Scope
A local variable is defined inside a function. You cannot access this variable outside the function's definition.
123456def greet(): message = "Aloha" print(message, "# local message") greet() print(message) # This line will result in an error
The output is:
Aloha # local message
NameError: name 'message' is not defined
The message variable is not accessible in the global scope; it exists only inside the function. When the function exits, this variable ceases to exist.
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Can you explain what a global variable is?
Why does the error occur when trying to print 'message' outside the function?
Can you show an example of how to make 'message' accessible outside the function?
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A local variable is defined inside a function. You cannot access this variable outside the function's definition.
123456def greet(): message = "Aloha" print(message, "# local message") greet() print(message) # This line will result in an error
The output is:
Aloha # local message
NameError: name 'message' is not defined
The message variable is not accessible in the global scope; it exists only inside the function. When the function exits, this variable ceases to exist.
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