python call function by variable name
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in python, functions are first-class citizens, which means you can assign them to variables and pass them as arguments to other functions. this flexibility allows us to call a function using a variable that holds its name. in this tutorial, we'll explore how to achieve this in python with code examples.
let's start by defining a couple of simple functions that we'll use in our examples.
to call a function using a variable, we can use the globals() or locals() function to get the dictionary of global or local symbols, respectively. then, we can access the function by its name as a key in the dictionary.
here's the basic structure:
let's demonstrate how to call functions by variable name using the functions we defined earlier.
in these examples, the call_function_by_name function takes a function name and any number of arguments, retrieves the function using globals(), and then calls it with the provided arguments.
remember that this approach has some limitations, and it's crucial to handle potential errors, such as the function name not being found. additionally, using this technique should be done cautiously, as it may introduce security risks if the function names are not validated properly.
now you have a basic understanding of calling python functions by variable name. use this technique wisely and consider alternative approaches depending on your specific use case.
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