Python | Accessing variable value from code scope
Sometimes, we just need to access a variable other than the usual way of accessing by it’s name. There are many method by which a variable can be accessed from the code scope. These are by default dictionaries that are created and which keep the variable values as dictionary key-value pair. Let’s talk about some of this functions.
Method #1 : Using locals()
This is a function that stores the values of all variables in local scope of function if in a function or of global scope if outside.
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# Python3 code to demonstrate working of# Accessing variable value from code scope# using locals # initialize variabletest_var = "gfg is best" # printing original variableprint("The original variable : " + str(test_var)) # Accessing variable value from code scope# using localsres = locals()['test_var'] # printing resultprint("Variable accessed using dictionary : " + str(res)) |
The original variable : gfg is best Variable accessed using dictionary : gfg is best
Method #2 : Using globals()
This is yet another function that maintains a dictionary of variables of global scope.
# Python3 code to demonstrate working of# Accessing variable value from code scope# using globals # initialize variabletest_var = "gfg is best" # printing original variableprint("The original variable : " + str(test_var)) # Accessing variable value from code scope# using globalsres = globals()['test_var'] # printing resultprint("Variable accessed using dictionary : " + str(res)) |
The original variable : gfg is best Variable accessed using dictionary : gfg is best
