Teachnique
      CourseRoadmaps
      Login

      OverviewCommentsUser InputNumbersBooleansHistoryHello World ProgramEnvironment SetupSyntaxVariablesData TypesType CastingUnicode SystemLiteralsOperators

      Control FlowBreak StatementContinue StatementPass StatementNested LoopsDecision MakingIf StatementIf-else StatementNested IF StatementMatch-Case StatementLoopsFor LoopsFor-else LoopsWhile Loops

      FunctionsBuilt-in FunctionsDefault ArgumentsKeyword ArgumentsKeyword-Only ArgumentsPositional ArgumentsPositional-Only ArgumentsArbitrary ArgumentsVariable ScopeFunction AnnotationsModules

      StringSlicing StringsModify StringsString ConcatenationString FormattingEscape CharactersString MethodsString Exercises

      ListsList ExercisesAccess List ItemsChange List ItemsAdd List ItemsRemove List ItemsLoop ListsList ComprehensionSort ListsCopy ListsJoin ListsList Methods

      TuplesAccess Tuple ItemsUpdate TuplesUnpack Tuple ItemsLoop TuplesJoin TuplesTuple MethodsTuple Exercises

      SetsAccess Set ItemsAdd Set ItemsRemove Set ItemsLoop SetsJoin SetsCopy SetsSet OperatorsSet MethodsSet Exercises

      DictionariesDictionary ExercisesAccess Dictionary ItemsChange Dictionary ItemsAdd Dictionary ItemsRemove Dictionary ItemsDictionary View ObjectsLoop DictionariesCopy DictionariesNested DictionariesDictionary Methods

      ArraysAccess Array ItemsAdd Array ItemsRemove Array ItemsLoop ArraysCopy ArraysReverse ArraysSort ArraysJoin ArraysArray MethodsArray Exercises

      File HandlingWrite to FileRead FilesRenaming and Deleting FilesDirectoriesFile Methods

      OOP ConceptsDynamic BindingDynamic TypingAbstractionObject and ClassesEncapsulationInterfacesPackagesInner ClassesAnonymous Class and ObjectsSingleton ClassWrapper ClassesEnumsReflectionClass AttributesClass MethodsStatic MethodsConstructorsAccess ModifiersInheritancePolymorphismMethod OverridingMethod Overloading

      Feedback

      Submit request if you have any questions.

      Course
      Remove Dictionary Items

      Python Tutorial

      This Python tutorial has been written for the beginners to help them understand the basic to advanced concepts of Python Programming Language. After completing this tutorial, you will find yourself at a great level of expertise in Python, from where you can take yourself to the next levels to become a world class Software Engineer.

      Remove Dictionary Items

      Using del Keyword

      Python's del keyword deletes any object from the memory. Here we use it to delete a key-value pair in a dictionary.

      Syntax

      del dict['key']

      Example

      numbers = {10:"Ten", 20:"Twenty", 30:"Thirty",40:"Forty"}
      print ("numbers dictionary before delete operation: \n", numbers)
      del numbers[20]
      print ("numbers dictionary before delete operation: \n", numbers)
      It will produce the following output
      numbers dictionary before delete operation:
       {10: 'Ten', 20: 'Twenty', 30: 'Thirty', 40: 'Forty'}
      numbers dictionary before delete operation:
       {10: 'Ten', 30: 'Thirty', 40: 'Forty'}

      Example

      The del keyword with the dict object itself removes it from memory.
      numbers = {10:"Ten", 20:"Twenty", 30:"Thirty",40:"Forty"}
      print ("numbers dictionary before delete operation: \n", numbers)
      del numbers
      print ("numbers dictionary before delete operation: \n", numbers)
      It will produce the following output
      numbers dictionary before delete operation:
       {10: 'Ten', 20: 'Twenty', 30: 'Thirty', 40: 'Forty'}
      Traceback (most recent call last):
       File "C:\Users\mlath\examples\main.py", line 5, in <module>
        print ("numbers dictionary before delete operation: \n", numbers)
                                                                 ^^^^^^^
      NameError: name 'numbers' is not defined

      Using pop() Method

      The pop() method of dict class causes an element with the specified key to be removed from the dictionary.

      Syntax

      val = dict.pop(key)

      Return value

      The pop() method returns the value of the specified key after removing the key-value pair.

      Example

      numbers = {10:"Ten", 20:"Twenty", 30:"Thirty",40:"Forty"}
      print ("numbers dictionary before pop operation: \n", numbers)
      val = numbers.pop(20)
      print ("nubvers dictionary after pop operation: \n", numbers)
      print ("Value popped: ", val)
      It will produce the following output 
      numbers dictionary before pop operation: 
       {10: 'Ten', 20: 'Twenty', 30: 'Thirty', 40: 'Forty'}
      nubvers dictionary after pop operation: 
       {10: 'Ten', 30: 'Thirty', 40: 'Forty'}
      Value popped:  Twenty

      Using popitem() Method

      The popitem() method in dict() class doesn't take any argument. It pops out the last inserted key-value pair, and returns the same as a tuple

      Syntax

      val = dict.popitem()

      Return Value

      The popitem() method return a tuple contain key and value of the removed item from the dictionary

      Example

      numbers = {10:"Ten", 20:"Twenty", 30:"Thirty",40:"Forty"}
      print ("numbers dictionary before pop operation: \n", numbers)
      val = numbers.popitem()
      print ("numbers dictionary after pop operation: \n", numbers)
      print ("Value popped: ", val)
      It will produce the following output
      numbers dictionary before pop operation: 
       {10: 'Ten', 20: 'Twenty', 30: 'Thirty', 40: 'Forty'}
      numbers dictionary after pop operation: 
       {10: 'Ten', 20: 'Twenty', 30: 'Thirty'}
      Value popped:  (40, 'Forty')

      Using clear() Method

      The clear() method in dict class removes all the elements from the dictionary object and returns an empty object.

      Syntax

      dict.clear()

      Example

      numbers = {10:"Ten", 20:"Twenty", 30:"Thirty",40:"Forty"}
      print ("numbers dictionary before clear method: \n", numbers)
      numbers.clear()
      print ("numbers dictionary after clear method: \n", numbers)
      It will produce the following output 
      numbers dictionary before clear method: 
       {10: 'Ten', 20: 'Twenty', 30: 'Thirty', 40: 'Forty'}
      numbers dictionary after clear method: 
       {}

      Practice with Online Editor

      Note: This Python online Editor is a Python interpreter written in Rust, RustPython may not fully support all Python standard libraries and third-party libraries yet.
      Remember to save code(Ctrl + S Or Command + S) before run it.