Python tutorials for beginners | IQ Online Training
- 1. Types Of Operator In Python
- 2. Paradigm – Object oriented,imperative,functional,procedural,reflective Designed by- GuidoVan Rossum Developer- Python Software Foundation First appeared- 20 Feb 1991 Stable release - 3.6.4/19 December 2017;35 days ago 2.7.14/16 September 2017;4 months ago Preview release- 3.7.0a4,3.5.5rc1,3.4.8rc1/2018 Typing discipline - Duck, Dynamic, Strong Filename extensions- .py,.pyc,.pyd,.pyo(Prior to 3.5).pyw,.pyz(since 3.5)
- 3. Operator Description Example + Addition Adds values on either side of the operator. a + b = 31 - Subtraction Subtracts right hand operand from left hand operand. a – b = -11 * Multiplication Multiplies values on either side of the operator a * b = 210 / Division Divides left hand operand by right hand operand b / a = 2.1 % Modulus Divides left hand operand by right hand operand and returns remainder b % a = 1 ** Exponent Performs exponential (power) calculation on operators a**b =10 to the power 20 // Floor Division -The division of operands where the result is the quotient in which the digits after the decimal point are removed. 9//2 = 4 and 9.0//2.0 = 4.0
- 4. Operator Description Example == If the values of two operands are equal, then the condition becomes true. (a == b) is not true. != If values of two operands are not equal, then condition becomes true (a!= b) is true. > If the value of left operand is greater than the value of right operand, then condition becomes true. (a > b) is not true. < If the value of left operand is less than the value of right operand, then condition becomes true. b / a = 2.1 >= If the value of left operand is greater than or equal to the value of right operand, then condition becomes true. (a >= b) is not true. <= If the value of left operand is less than or equal to the value of right operand, then condition becomes true. (a <= b) is true
- 5. Operator Description Example = Assigns values from right side operands to left side operand c = a + b assigns value of a + b into c += Add AND It adds right operand to the left operand and assign the result to left operand c += a is equivalent to c = c + a -= Subtract AND It subtracts right operand from the left operand and assign the result to left operand c -= a is equivalent to c = c - a *= MultiplyAND If the value of left operand is less than the value of right operand, then condition becomes true. c *= a is equivalent to c = c * a /= Divide AND It divides left operand with the right operand and assign the result to left operand c /= a is equivalent to c = c / ac /= a is equivalent to c = c / a %= Modulus AND It takes modulus using two operands and assign the result to left operand c %= a is equivalent to c = c % a
- 6. Operator Description Example & Binary AND Operator copies a bit to the result, if it exists in both operands (a & b) (means 0000 1100) | Binary OR It copies a bit, if it exists in either operand. (a | b) = 61 (means 0011 1101) ^ Binary XOR It copies the bit, if it is set in one operand but not both. (a ^ b) = 49 (means 0011 0001) ~ Binary Ones Complement It is unary and has the effect of 'flipping' bits. (~a ) = -61 (means 1100 0011 in 2's complement form due to a signed binary number. << Binary Left Shift The left operand’s value is moved left by the number of bits specified by the right operand. a << = 240 (means 1111 0000) >> Binary Right Shift The left operand’s value is moved right by the number of bits specified by the right operand. a >> = 15 (means 0000 1111)
- 7. Operator Description Example and LogicalAND If both the operands are true then condition becomes true. (a and b) is False. or Logical OR If any of the two operands are non- zero then condition becomes true. (a or b) isTrue. not Logical NOT Used to reverse the logical state of its operand. Not(a and b) isTrue.
- 8. Operator Description Example in Evaluates to true, if it finds a variable in the specified sequence and false otherwise. x in y, here in results in a 1 if x is a member of sequence y. not in Evaluates to true, if it does not find a variable in the specified sequence and false otherwise. x not in y, here not in results in a 1 if x is not a member of sequence y not Logical NOT Used to reverse the logical state of its operand. Not(a and b) isTrue.
- 9. Operator Description Example is Evaluates to true if the variables on either side of the operator point to the same object and false otherwise. x is y, here is results in 1 if id(x) equals id(y). is not Evaluates to false if the variables on either side of the operator point to the same object and true otherwise. x is not y, here is not results in 1 if id(x) is not equal to id(y)
- 10. Operator Description ** Exponentiation (raise to the power) ~ + - Complement, unary plus and minus (method names for the last two are +@ and -@) * / % // Multiply, divide, modulo and floor division + - Addition and subtraction >> << Right and left bitwise shift & Bitwise 'AND' ^ | Bitwise exclusive `OR' and regular `OR' <= < > >= Comparison operators
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- 12. Introduction to python Getting Started Language Basics Function Collections Modularisation of code Regular Expressions Files & Directories Exception Handling OOP Basics
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