Python locals() Function

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Python locals() Function

The python locals() method updates and returns the dictionary of the current local symbol table.

A Symbol table is defined as a data structure which contains all the necessary information about the program. It includes variable names, methods, classes etc.

Signature

  • locals()

Parameters

It does not contain any parameters.

Return

It returns the dictionary of the current local symbol table.

Python locals() Function Example 1

The below example shows the working of locals() inside a local scope.

  • def localsAbsent():
    return locals()

    def localsPresent():
    present = True
    return locals()

    print(‘localsNotPresent:’, localsAbsent())
    print(‘localsPresent:’, localsPresent())

Output:

  • localsAbsent: {}
    localsPresent: {‘present’: True}

Explanation: The above example updates and returns the dictionary of the current local symbol table.

Python locals() Function Example 2

The below example shows how to update locals() dictionary values.

  • def localsArePresent():
    present = True
    print(present)
    locals()[‘present’] = False;
    print(present)

    localsArePresent()

Output:

  • True
    True

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