Here's a "real-world" example from the decimal package:
>>> from decimal import Decimal
>>> obj = Decimal('3.1415926535897932384626433832795028841971')
>>> +obj != obj # The __pos__ function rounds back to normal precision
True
>>> obj
Decimal('3.1415926535897932384626433832795028841971')
>>> +obj
Decimal('3.141592653589793238462643383')
Top answer 1 of 7
54
Here's a "real-world" example from the decimal package:
>>> from decimal import Decimal
>>> obj = Decimal('3.1415926535897932384626433832795028841971')
>>> +obj != obj # The __pos__ function rounds back to normal precision
True
>>> obj
Decimal('3.1415926535897932384626433832795028841971')
>>> +obj
Decimal('3.141592653589793238462643383')
2 of 7
39
In Python 3.3 and above, collections.Counter uses the + operator to remove non-positive counts.
>>> from collections import Counter
>>> fruits = Counter({'apples': 0, 'pears': 4, 'oranges': -89})
>>> fruits
Counter({'pears': 4, 'apples': 0, 'oranges': -89})
>>> +fruits
Counter({'pears': 4})
So if you have negative or zero counts in a Counter, you have a situation where +obj != obj.
>>> obj = Counter({'a': 0})
>>> +obj != obj
True
Rebus Community
press.rebus.community › programmingfundamentals › chapter › unary-operations
Unary Operations – Programming Fundamentals
December 15, 2018 - As unary operations have only one operand, they are evaluated before other operations containing them.[1] Common unary operators include Positive (+) and Negative (-). Unary positive also known as plus and unary negative also known as ...
Videos
12:05
Arithmetic Operators in Python - YouTube
The Python Unary Arithmetic Operators
01:49
Python Programming Tutorial - Operators | Unary and Binary - YouTube
06:04
Unary operator in python programming in hindi | urdu - YouTube
11:15
Python3 Basics # 1.3 | Python Operators | Unary | Logical | Identity ...
01:44
UNARY MINUS OPERATOR | Python By Surendra - YouTube
What happens if I apply the unary minus operator to a string in Python?
In Python, applying the unary minus operator (-) to a string will raise a TypeError because strings don't support arithmetic operations like negation. Unary operators typically work with numeric types.
lenovo.com
lenovo.com › home
What You Need to Know About Unary Operators | Lenovo US
How do you use the unary plus operator in C++?
In C++, the unary plus operator (+) is used to explicitly convert a value to a numeric type. If you have a variable or expression that might be implicitly converted to another type due to C++'s type promotion rules, you can use the unary plus operator to enforce conversion to a numeric type, ensuring clarity and avoiding unintended conversions or type mismatches in expressions.
lenovo.com
lenovo.com › home
What You Need to Know About Unary Operators | Lenovo US
What is a unary operator?
A unary operator is an operator that operates on only one operand, unlike binary operators, which operate on two operands. It performs various operations on a single value, such as negating, incrementing, decrementing, or complementing it. Unary operators are commonly used in programming languages for manipulating data and performing calculations. They play a fundamental role in expressions and are essential for performing tasks like incrementing loop counters, manipulating memory addresses, and performing bitwise operations.
lenovo.com
lenovo.com › home
What You Need to Know About Unary Operators | Lenovo US
GeeksforGeeks
geeksforgeeks.org › dsa › unary-operators-in-programming
Unary Operators in Programming - GeeksforGeeks
March 20, 2024 - Here are the implementation of Unary Operator in Python language: ... a = 10 b = 5 # Unary plus (+) c = -5 # The unary plus doesn't change the value of 'c' print("Unary Plus:", +c) # Unary minus (-) # The unary minus negates the value of 'c' print("Unary Minus:", -c) # Unary logical NOT (!) d = False # Logical NOT of False is True print("Unary Logical NOT:", not d) # Unary bitwise NOT (~) e = 1 # Bitwise NOT of 1 is -2 print("Unary Bitwise NOT:", ~e)
EDUCBA
educba.com › home › software development › software development tutorials › python tutorial › unary operators in python
Unary Operators in Python | Examples of Different Operators in Python
January 8, 2024 - The unary structure implies negate, restoring the nullified incentive as its operand: zero to zero, positive to negative, and negative to positive. ... The * operator in Python can be utilized distinctly in the paired structure, which implies increase, restoring an outcome that is the standard arithmetic product result of its operands.
Call +917738666252
Address Unit no. 202, Jay Antariksh Bldg, Makwana Road, Marol, Andheri (East),, 400059, Mumbai
Python
docs.python.org › 2.0 › ref › unary.html
5.5 Unary arithmetic operations
The unary + (plus) operator yields its numeric argument unchanged. The unary ~ (invert) operator yields the bit-wise inversion of its plain or long integer argument. The bit-wise inversion of x is defined as -(x+1).
Dot Net Tutorials
dotnettutorials.net › home › operators in python
Operators in Python with Examples - Dot Net Tutorials
April 21, 2021 - Note: The symbols + and = are called operators and the variables a,b,c on which operation is being performed are called operands. Unary Operator – If the operator acts on a single operand then it’s called the unary operator.
Medium
medium.com › towards-data-analytics › unary-and-binary-operators-in-python-def421acc479
Unary and Binary Operators in Python | by Graham Waters | Towards Data Analytics | Medium
March 30, 2022 - A Unary Operator is a computational operator that takes any action on one operand and produces only one result. For example, the “-” binary operator in Python turns the operand negative (if positive) and positive (if negative).
Python documentation
docs.python.org › 3 › reference › expressions.html
6. Expressions — Python 3.14.3 documentation
The unary + (plus) operator yields its numeric argument unchanged; the operation can be overridden with the __pos__() special method. The unary ~ (invert) operator yields the bitwise inversion of its integer argument.
Sololearn
sololearn.com › en › Discuss › 1944242 › what-is-the-property-of-unary-plus-and-minus-operators-in-python
What is the property of unary plus and minus operators in python? | Sololearn: Learn to code for FREE!
Unary plus represented as +@ and unary minus as -@. How do they differ from conventional (mathematical) + and -.
Lenovo
lenovo.com › home
What You Need to Know About Unary Operators | Lenovo US
They play a fundamental role in expressions and are essential for performing tasks like incrementing loop counters, manipulating memory addresses, and performing bitwise operations. The increment operator (++), also known as the "plus-plus" operator, adds one to the value of a variable.
Coder Scratchpad
coderscratchpad.com › home › python operator overloading: unary operators
Python Operator Overloading: Unary Operators
May 31, 2025 - In Python, unary operators are special symbols or functions that work with just one operand. You’ve probably seen them used with numbers: Accelerate your tech career with hands-on learning.
Educative
educative.io › answers › what-is-a-unary-operator
What is a unary operator?
int a = 10; // it assigns the value of `a` to `b` // and then increments the value of `a` by one int b = a++;// b = 10 // a = 11
Reddit
reddit.com › r/learnpython › why does python allow multiple operators in front of numbers?
r/learnpython on Reddit: Why does Python allow multiple operators in front of numbers?
November 14, 2019 -
How does Python actually treat/define operators? If I run:
n = +++5print(n)
I get 5. Why is this allowed? That said, I understand why this is allowed:
n = 5 --- 5print(n)
since an even number of minuses will result in a positive number.
But why is multiple pluses useful/allowed syntax?
Thanks!
Top answer 1 of 5
30
I wrote a quick program that shows what happens: https://repl.it/repls/DarkgreySuburbanProperties So as you can see, the +++ is not a single operation, it's calling the unary positive operation on the object twice, and the addition operation once. While this might not be particularly useful for these integers, for the sake of symmetry such operations are defined and people might find use cases for them in their own class implementations.
2 of 5
29
dafuq. In [4]: a = +-+-+-5 In [5]: a Out[5]: -5 Nice catch ! I didn't know this.
Brainly
brainly.com › computers and technology › high school › according to python's precedence rules, which of the following operators has the highest precedence?
1) subtraction
2) unary
[FREE] According to Python's precedence rules, which of the following operators has the highest precedence? 1) - brainly.com
In Python, the unary operators have the highest precedence according to Python's precedence rules. Unary operators in programming are operations with only one operand, such as unary minus, unary plus, and bitwise not. For instance, in an expression like -5, the minus sign is considered a unary operator that negates the number.
Glarity
askai.glarity.app › search › What-are-unary-operators-in-Python-and-how-are-they-used
What are unary operators in Python and how are they used? - Ask and Answer - Glarity
Unary operators in Python are operators that perform an operation on a single operand. Here's a brief overview: 1. Unary plus (+) and minus (-) operators are used for numerical operations, such as changing the sign of a number.
Real Python
realpython.com › lessons › arithmetic-operators-and-expressions
Arithmetic Operators and Expressions (Video) – Real Python
The word “binary” in this context means that the operator takes two operands or arguments, while “unary” implies only one argument. When used with two operands, the plus operator adds them together, which can mean different things depending ...
Published October 18, 2022
ScienceDirect
sciencedirect.com › topics › computer-science › unary-operator
Unary Operator - an overview | ScienceDirect Topics
An operator is equivalent to a member method of an object. The operator can have multiple levels of arity. The 0-ary operator takes no arguments as input; a 1-ary or unary operator takes one object as input, and a 2-ary or binary operator takes two objects and input. In a programming environment such as Python, the object consumed by a method can be self as well, the very object to which the method is attached.