{"id":656,"date":"2021-02-26T18:35:06","date_gmt":"2021-02-26T13:05:06","guid":{"rendered":"https:\/\/cbsepython.in\/?p=656"},"modified":"2021-06-04T23:19:12","modified_gmt":"2021-06-04T17:49:12","slug":"operator-in-python","status":"publish","type":"post","link":"https:\/\/cbsepython.in\/operator-in-python\/","title":{"rendered":"Operator in python"},"content":{"rendered":"

Operator in python<\/span><\/h3>\n

Operators are the constructs which can manipulate the value of operands.<\/span><\/p>\n

Consider the expression 4 + 5 = 9. Here, 4 and 5 are called operands and + is called operator.<\/span><\/p>\n

Types of Operator<\/span><\/h3>\n

Python language supports the following types of operators.<\/span><\/p>\n

    \n
  • Arithmetic Operators<\/span><\/li>\n
  • Comparison (Relational) Operators<\/span><\/li>\n
  • Assignment Operators<\/span><\/li>\n
  • Logical Operators<\/span><\/li>\n
  • Bitwise Operators<\/span><\/li>\n
  • Membership Operators<\/span><\/li>\n
  • Identity Operators<\/span><\/li>\n<\/ul>\n

    Let us have a look on all operators one by one.<\/span><\/p>\n

    Python Arithmetic Operators<\/span><\/h3>\n

    Assume variable a holds 10 and variable b holds 20, then<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    + Addition<\/span><\/td>\nAdds values on either side of the operator.<\/span><\/td>\na + b = 30<\/span><\/td>\n<\/tr>\n
    – Subtraction<\/span><\/td>\nSubtracts right hand operand from left hand operand.<\/span><\/td>\na \u2013 b = -10<\/span><\/td>\n<\/tr>\n
    * Multiplication<\/span><\/td>\nMultiplies values on either side of the operator<\/span><\/td>\na * b = 200<\/span><\/td>\n<\/tr>\n
    \/ Division<\/span><\/td>\nDivides left hand operand by right hand operand<\/span><\/td>\nb \/ a = 2<\/span><\/td>\n<\/tr>\n
    % Modulus<\/span><\/td>\nDivides left hand operand by right hand operand and returns remainder<\/span><\/td>\nb % a = 0<\/span><\/td>\n<\/tr>\n
    ** Exponent<\/span><\/td>\nPerforms exponential (power) calculation on operators<\/span><\/td>\na**b =10 to the power 20<\/span><\/td>\n<\/tr>\n
    \/\/<\/span><\/td>\nFloor Division – The division of operands where the result is the quotient in which the digits after the decimal point are removed. But if one of the operands is negative, the result is floored, i.e., rounded away from zero (towards negative infinity) \u2212<\/span><\/td>\n9\/\/2 = 4 and 9.0\/\/2.0 = 4.0, -11\/\/3 = -4, -11.0\/\/3 = -4.0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Python Comparison Operators<\/span><\/h3>\n

    These operators compare the values on either sides of them and decide the relation among them. They are also called Relational operators.<\/span><\/p>\n

    Assume variable a holds 10 and variable b holds 20, then \u2212<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    ==<\/span><\/td>\nIf the values of two operands are equal, then the condition becomes true.<\/span><\/td>\n(a == b) is not true.<\/span><\/td>\n<\/tr>\n
    !=<\/span><\/td>\nIf values of two operands are not equal, then condition becomes true.<\/span><\/td>\n(a != b) is true.<\/span><\/td>\n<\/tr>\n
    <><\/span><\/td>\nIf values of two operands are not equal, then condition becomes true.<\/span><\/td>\n(a <> b) is true. This is similar to != operator.<\/span><\/td>\n<\/tr>\n
    ><\/span><\/td>\nIf the value of left operand is greater than the value of right operand, then condition becomes true.<\/span><\/td>\n(a > b) is not true.<\/span><\/td>\n<\/tr>\n
    <<\/span><\/td>\nIf the value of left operand is less than the value of right operand, then condition becomes true.<\/span><\/td>\n(a < b) is true.<\/span><\/td>\n<\/tr>\n
    >=<\/span><\/td>\nIf the value of left operand is greater than or equal to the value of right operand, then condition becomes true.<\/span><\/td>\n(a >= b) is not true.<\/span><\/td>\n<\/tr>\n
    <=<\/span><\/td>\nIf the value of left operand is less than or equal to the value of right operand, then condition becomes true.<\/span><\/td>\n(a <= b) is true.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Python Assignment Operators<\/span><\/h3>\n

    Assume variable a holds 10 and variable b holds 20, then \u2212<\/span><\/p>\n

     <\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    =<\/span><\/td>\nAssigns values from right side operands to left side operand<\/span><\/td>\nc = a + b assigns value of a + b into c<\/span><\/td>\n<\/tr>\n
    += Add AND<\/span><\/td>\nIt adds right operand to the left operand and assign the result to left operand<\/span><\/td>\nc += a is equivalent to c = c + a<\/span><\/td>\n<\/tr>\n
    -= Subtract AND<\/span><\/td>\nIt subtracts right operand from the left operand and assign the result to left operand<\/span><\/td>\nc -= a is equivalent to c = c – a<\/span><\/td>\n<\/tr>\n
    *= Multiply AND<\/span><\/td>\nIt multiplies right operand with the left operand and assign the result to left operand<\/span><\/td>\nc *= a is equivalent to c = c * a<\/span><\/td>\n<\/tr>\n
    \/= Divide AND<\/span><\/td>\nIt divides left operand with the right operand and assign the result to left operand<\/span><\/td>\nc \/= a is equivalent to c = c \/ a<\/span><\/td>\n<\/tr>\n
    %= Modulus AND<\/span><\/td>\nIt takes modulus using two operands and assign the result to left operand<\/span><\/td>\nc %= a is equivalent to c = c % a<\/span><\/td>\n<\/tr>\n
    **= Exponent AND<\/span><\/td>\nPerforms exponential (power) calculation on operators and assign value to the left operand<\/span><\/td>\nc **= a is equivalent to c = c ** a<\/span><\/td>\n<\/tr>\n
    \/\/= Floor Division<\/span><\/td>\nIt performs floor division on operators and assign value to the left operand<\/span><\/td>\nc \/\/= a is equivalent to c = c \/\/ a<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Python Bitwise Operators<\/span><\/h3>\n

    Bitwise operator works on bits and performs bit by bit operation. Assume if a = 60; and b = 13; Now in the binary format their values will be 0011 1100 and 0000 1101 respectively. Following table lists out the bitwise operators supported by Python language with an example each in those, we use the above two variables (a and b) as operands \u2212<\/span><\/p>\n

    a = 0011 1100<\/span><\/p>\n

    b = 0000 1101<\/span><\/p>\n

    —————–<\/span><\/p>\n

    a&b = 0000 1100<\/span><\/p>\n

    a|b = 0011 1101<\/span><\/p>\n

    a^b = 0011 0001<\/span><\/p>\n

    ~a\u00a0 = 1100 0011<\/span><\/p>\n

    There are following Bitwise operators supported by Python language.<\/span><\/p>\n

     <\/p>\n\n\n\n\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    & Binary AND<\/span><\/td>\nOperator copies a bit to the result if it exists in both operands<\/span><\/td>\n(a & b) (means 0000 1100)<\/span><\/td>\n<\/tr>\n
    | Binary OR<\/span><\/td>\nIt copies a bit if it exists in either operand.<\/span><\/td>\n(a | b) = 61 (means 0011 1101)<\/span><\/td>\n<\/tr>\n
    ^ Binary XOR<\/span><\/td>\nIt copies the bit if it is set in one operand but not both.<\/span><\/td>\n(a ^ b) = 49 (means 0011 0001)<\/span><\/td>\n<\/tr>\n
    ~ Binary Ones Complement<\/span><\/td>\nIt is unary and has the effect of ‘flipping’ bits.<\/span><\/td>\n(~a ) = -61 (means 1100 0011 in 2’s complement form due to a signed binary number.<\/span><\/td>\n<\/tr>\n
    << Binary Left Shift<\/span><\/td>\nThe left operands value is moved left by the number of bits specified by the right operand.<\/span><\/td>\na << 2 = 240 (means 1111 0000)<\/span><\/td>\n<\/tr>\n
    >> Binary Right Shift<\/span><\/td>\nThe left operands value is moved right by the number of bits specified by the right operand.<\/span><\/td>\na >> 2 = 15 (means 0000 1111)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Python Logical Operators<\/span><\/h3>\n

    There are following logical operators supported by Python language. Assume variable a holds 10 and variable b holds 20 then<\/span><\/p>\n\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    and Logical AND<\/span><\/td>\nIf both the operands are true then condition becomes true.<\/span><\/td>\n(a and b) is true.<\/span><\/td>\n<\/tr>\n
    or Logical OR<\/span><\/td>\nIf any of the two operands are non-zero then condition becomes true.<\/span><\/td>\n(a or b) is true.<\/span><\/td>\n<\/tr>\n
    not Logical NOT<\/span><\/td>\nUsed to reverse the logical state of its operand.<\/span><\/td>\nNot(a and b) is false.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Python Membership Operators<\/span><\/h3>\n

    Python\u2019s membership operators test for membership in a sequence, such as strings, lists, or tuples. There are two membership operators as explained below \u2212<\/span><\/p>\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    In<\/span><\/td>\nEvaluates to true if it finds a variable in the specified sequence and false otherwise.<\/span><\/td>\nx in y, here in results in a 1 if x is a member of sequence y.<\/span><\/td>\n<\/tr>\n
    not in<\/span><\/td>\nEvaluates to true if it does not finds a variable in the specified sequence and false otherwise.<\/span><\/td>\nx not in y, here not in results in a 1 if x is not a member of sequence y.<\/span><\/p>\n

     <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Python Identity Operators<\/span><\/h3>\n

    Identity operators compare the memory locations of two objects. There are two Identity operators explained below \u2212<\/span><\/p>\n\n\n\n\n\n
    Operator<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nExample<\/strong><\/span><\/td>\n<\/tr>\n
    Is<\/span><\/td>\nEvaluates to true if the variables on either side of the operator point to the same object and false otherwise.<\/span><\/td>\nx is y, here\u00a0is<\/strong>\u00a0results in 1 if id(x) equals id(y).<\/span><\/td>\n<\/tr>\n
    is not<\/span><\/td>\nEvaluates to false if the variables on either side of the operator point to the same object and true otherwise.<\/span><\/td>\nx is not y, here\u00a0is not<\/strong>\u00a0results in 1 if id(x) is not equal to id(y).<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Python Operators Precedence<\/span><\/h3>\n

    The following table lists all operators from highest precedence to lowest.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Sr.No.<\/strong><\/span><\/td>\nOperator & Description<\/strong><\/span><\/td>\n<\/tr>\n
    1<\/span><\/td>\n**<\/strong><\/span><\/p>\n

    Exponentiation (raise to the power)<\/span><\/td>\n<\/tr>\n

    2<\/span><\/td>\n~ + –<\/strong><\/span><\/p>\n

    Complement, unary plus and minus (method names for the last two are +@ and -@)<\/span><\/td>\n<\/tr>\n

    3<\/span><\/td>\n* \/ % \/\/<\/strong><\/span><\/p>\n

    Multiply, divide, modulo and floor division<\/span><\/td>\n<\/tr>\n

    4<\/span><\/td>\n+ –<\/strong><\/span><\/p>\n

    Addition and subtraction<\/span><\/td>\n<\/tr>\n

    5<\/span><\/td>\n>> <<<\/strong><\/span><\/p>\n

    Right and left bitwise shift<\/span><\/td>\n<\/tr>\n

    6<\/span><\/td>\n&<\/strong><\/span><\/p>\n

    Bitwise ‘AND’<\/span><\/td>\n<\/tr>\n

    7<\/span><\/td>\n^ |<\/strong><\/span><\/p>\n

    Bitwise exclusive `OR’ and regular `OR’<\/span><\/td>\n<\/tr>\n

    8<\/span><\/td>\n<= < > >=<\/strong><\/span><\/p>\n

    Comparison operators<\/span><\/td>\n<\/tr>\n

    9<\/span><\/td>\n<> == !=<\/strong><\/span><\/p>\n

    Equality operators<\/span><\/td>\n<\/tr>\n

    10<\/span><\/td>\n= %= \/= \/\/= -= += *= **=<\/strong><\/span><\/p>\n

    Assignment operators<\/span><\/td>\n<\/tr>\n

    11<\/span><\/td>\nis is not<\/strong><\/span><\/p>\n

    Identity operators<\/span><\/td>\n<\/tr>\n

    12<\/span><\/td>\nin not in<\/strong><\/span><\/p>\n

    Membership operators<\/span><\/td>\n<\/tr>\n

    13<\/span><\/td>\nnot or and<\/strong><\/span><\/p>\n

    Logical operators<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    Operator in python Operators are the constructs which can manipulate the value of operands. Consider the expression 4 + 5 = 9. Here, 4 and 5 are called operands and + is called operator. Types of Operator Python language supports the following types of operators. Arithmetic Operators Comparison (Relational) Operators Assignment Operators Logical Operators Bitwise […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-656","post","type-post","status-publish","format-standard","hentry","category-cbse-computer-science-with-python-class-12"],"_links":{"self":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/comments?post=656"}],"version-history":[{"count":0,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/656\/revisions"}],"wp:attachment":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/media?parent=656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/categories?post=656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/tags?post=656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}