GeeksforGeeks
geeksforgeeks.org › python › assignment-operators-in-python
Assignment Operators in Python - GeeksforGeeks
July 15, 2025 - These are the special symbols that carry out arithmetic, logical, and bitwise computations. The value the operator operates on is known as the Operand. Assignment Operators are used to assign values to variables.
W3Schools
w3schools.com › python › gloss_python_assignment_operators.asp
Python Assignment Operators
Python If Python Elif Python Else Shorthand If Logical Operators Nested If Pass Statement Code Challenge Python Match ... Python Functions Python Arguments Python *args / **kwargs Python Scope Python Decorators Python Lambda Python Recursion Python Generators Code Challenge Python Range ... Matplotlib Intro Matplotlib Get Started Matplotlib Pyplot Matplotlib Plotting Matplotlib Markers Matplotlib Line Matplotlib Labels Matplotlib Grid Matplotlib Subplot Matplotlib Scatter Matplotlib Bars Matplotlib Histograms Matplotlib Pie Charts
Python's Assignment Operator: Write Robust Assignments – Real Python
Alright so I saw this and was like "Seriously? An entire article about the assignment operator? This is so dumb, what more could there possibly be to learn about it?" And I must say I was surprised. A lot of it was functionality I didn't realize was afforded to me because of the assignment operator. I assumed it was because of the various objects and their own functionalities so it didn't occur to me that a good portion of it is actually due to the assignment operator as well. I knew a lot of this, but I did learn some new stuff as well. The biggest one in particular is the unpacking operator (*) when doing parallel assignment. Definitely worth reading the article and searching for that. More on reddit.com
3
100
January 17, 2023Python 3 and assignment operators (= + vs +=)
The plain + operator has no choice but to return a new list, because there's no guarantee that you're going to assign the result back to the original list. You could write a = b + c, and from the standpoint of the + operator, that's indistinguishable from b = b + c. The augmented assignment operator is a little bit different. You can think of it as a mutating method call, the same as writing lst.append(9) appends 9 to the list. Essentially that's exactly what's happening, except that it's lst = lst.__iadd__([9]) although the assignment part really has no effect because the method modifies in-place and returns a reference to the same list object, so the assignment part is a no-op. (The first example is also equivalent to b = b.__add__(c), but again the method can't know ahead of time that you're assigning the result back to b.) The method in this case can mutate the list rather than creating a new one because there's no possibility that it's not being assigned back. It's a bit of a performance optimization. More on reddit.com
12
34
February 2, 2016compiler construction - assign operator to variable in python? - Stack Overflow
Usual method of applying mathematics to variables is a * b Is it able to calculate and manipulate two operands like this? a = input('enter a value') b = input('enter a value') op = raw_input('e... More on stackoverflow.com
Just noticed the 'augmented assignment operator' isn't really an 'assignment operator'
Always trust the official documentation: https://docs.python.org/2/reference/simple_stmts.html An augmented assignment expression like x += 1 can be rewritten as x = x + 1 to achieve a similar, but not exactly equal effect. In the augmented version, x is only evaluated once. Also, when possible, the actual operation is performed in-place, meaning that rather than creating a new object and assigning that to the target, the old object is modified instead. So, because lists are mutable, b += other_list and b = b + other_list will have different behaviours when it comes to comparing object identities (which is what the is keyword does). Beazley's book was likely written before the += was changed to do in-place assignments whenever possible. (Beazley probably knows more about Python and its internals than 99.9% of redditors interested in Python, including myself.) More on reddit.com
14
16
June 12, 2014Videos
05:17
Python Assignment Operators Explained Simply (Full Tutorial) - YouTube
09:41
Assignment Operators in Python - YouTube
06:28
Python for Beginners — Part 15: Assignment Operators - YouTube
06:41
Assignment Operators in Python - #14 - YouTube
02:22
Python Assignment Operators - YouTube
Python
peps.python.org › pep-0572
PEP 572 – Assignment Expressions | peps.python.org
During discussion of this PEP, the operator became informally known as “the walrus operator”. The construct’s formal name is “Assignment Expressions” (as per the PEP title), but they may also be referred to as “Named Expressions” (e.g.
NetworkLessons
networklessons.com › home › python › python assignment operators
Python Assignment Operators
April 2, 2020 - Python assignment operators are one of the operator types and assign values to variables. We use arithmetic operators here in combination with a variable.
CodingNomads
codingnomads.com › python-assignment-operator
Python Assignment Operator
This works well and is perfectly fine Python code. However, there is a more concise way of writing the same code using shorthand assignment: ... Check out how the second line in these two code snippets is different. You don't need to write the name of the variable x a second time using the shorthand operator += like in the example above.
DEV Community
dev.to › adamlombard › python-assignment-operators-dfj
Python: Assignment Operators - DEV Community
March 20, 2024 - Python also has seven arithmetic assignment operators, which are a sort of shorthand for performing two operations in sequence -- 1) arithmetic between a variable operand on the left of the expression and some other value on the right, and then 2) the assigning of the result back to the original variable:
Programiz
programiz.com › python-programming › operators
Python Operators (With Examples)
Here, - is an arithmetic operator ... print ('Modulo: ', a % b) # a to the power b print ('Power: ', a ** b) ... Assignment operators are used to assign values to variables....
Real Python
realpython.com › python-walrus-operator
The Walrus Operator: Python's Assignment Expressions – Real Python
December 14, 2024 - First, look at some different terms that programmers use to refer to this new syntax. You’ve already seen a few in this tutorial. The := operator is officially known as the assignment expression operator.
Reddit
reddit.com › r/python › python's assignment operator: write robust assignments – real python
r/Python on Reddit: Python's Assignment Operator: Write Robust Assignments – Real Python
January 17, 2023 - Contrary to C or Java, there is no assignment operator in Python, instead there exists an assignment statement.
Python
docs.python.org › 3 › library › operator.html
operator — Standard operators as functions
Listed below are functions providing ... way to put it is to say that z = operator.iadd(x, y) is equivalent to the compound statement z = x; z += y. In those examples, note that when an in-place method is called, the computation and assignment are performed in two separate ...
Tutorialspoint
tutorialspoint.com › home › python › python operators
Python Operators
February 21, 2009 - Python Assignment operators are used to assign values to variables.
Reddit
reddit.com › r/learnpython › python 3 and assignment operators (= + vs +=)
r/learnpython on Reddit: Python 3 and assignment operators (= + vs +=)
February 2, 2016 -
I came across something I don't fully understand. It seems the = + operators and += do different things.
>>> x = [1, 2, 3] >>> y = x >>> y [1, 2, 3]
Variables x and y point to the same list. If use append (say x.append(7)) on either, then the append is seen by both as the data/list is modified in place. That I get. But if I use + instead, I apparently create a new list:
>>> x = x + [7] >>> x [1, 2, 3, 7] >>> y [1, 2, 3]
OK. But += is the shorthand for the first statement, so I would expect the same behavior, but I don't get it.
>>> y = x >>> x [1, 2, 3, 7] >>> y [1, 2, 3, 7] >>> x += [9] >>> x [1, 2, 3, 7, 9] >>> y [1, 2, 3, 7, 9]
Obviously = + and += are different. Can anyone enlighten me?
Top answer 1 of 5
21
The plain + operator has no choice but to return a new list, because there's no guarantee that you're going to assign the result back to the original list. You could write a = b + c, and from the standpoint of the + operator, that's indistinguishable from b = b + c. The augmented assignment operator is a little bit different. You can think of it as a mutating method call, the same as writing lst.append(9) appends 9 to the list. Essentially that's exactly what's happening, except that it's lst = lst.__iadd__([9]) although the assignment part really has no effect because the method modifies in-place and returns a reference to the same list object, so the assignment part is a no-op. (The first example is also equivalent to b = b.__add__(c), but again the method can't know ahead of time that you're assigning the result back to b.) The method in this case can mutate the list rather than creating a new one because there's no possibility that it's not being assigned back. It's a bit of a performance optimization.
2 of 5
4
= + isn't an operator; it's two. In the general case, x += y and x = x + y will do the same thing. However, depending on x's type, it may provide special instructions that are intended for optimization. Unfortunately, this causes an observable change in the semantics, at least in the case of the built-in list type. u/Rhomboid 's post has the rest of the information here.
Medium
medium.com › @ramandeep.ladhar1 › 13-amazing-assignment-operators-in-python-4e058810e783
13 Amazing Assignment Operators in Python | by Ramandeep Ladhar | Medium
May 3, 2022 - Assignment Operators in Python are the operators that are used to assign the values of the expression to the variable on the left-hand side.
Initial Commit
initialcommit.com › blog › assignment-operators-python
Assignment Operators in Python
January 31, 2022 - An assignment operator is a symbol that you use in Python to indicate that you want to perform some action and then assign the value to a . You would use an addition or subtraction operator in Python when you want to calculate the result of ...
Career Karma
careerkarma.com › blog › python › python += operator: a guide
Python += Operator: A Guide | Career Karma
December 1, 2023 - First, we declare a Python variable called a. This variable stores the value 10. Then, we use a += 7.5 to add 7.5 to the a variable. Finally, we print out the value of a to the console, which returns 17.5. Using the addition assignment operator in this example is like writing out a = a + 7.5.
Python documentation
docs.python.org › 3 › reference › datamodel.html
3. Data model — Python 3.14.3 documentation
Bytes literals (like b'abc') and the built-in bytes() constructor can be used to create bytes objects. Also, bytes objects can be decoded to strings via the decode() method. Mutable sequences can be changed after they are created. The subscription and slicing notations can be used as the target of assignment and del (delete) statements.
Hero Vired
herovired.com › home › learning-hub › topics › assignment-operators-in-python
Assignment Operators in Python (With Examples)
July 27, 2024 - The equal sign (=) is the simple assignment operator in Python.
Top answer 1 of 6
96
You can use the operator module and a dictionary:
Copyimport operator
ops = {
"+": operator.add,
"-": operator.sub,
"*": operator.mul,
"/": operator.div
}
op_char = input('enter a operand')
op_func = ops[op_char]
result = op_func(a, b)
2 of 6
11
The operator module http://docs.python.org/library/operator.html exposes functions corresponding to practically all Python operators. You can map operator symbols to those functions to retrieve the proper function, then assign it to your op variable and compute op(a, b).
Python Tutorial
pythontutorial.net › home › python basics › python assignment operators
Python Assignment Operators
March 31, 2025 - In this example, the operator += adds one to the count variable and assigns its result back to the variable: ... The add and assign operator (+= ) allows you to add a value to a variable and assign the result back to it. For example: count = 0 count += 1 # Same as: count = count + 1 ...
Intellipaat
intellipaat.com › home › blog › python assignment operators
Assignment Operators in Python (With Examples)
October 29, 2025 - An assignment statement is made up of a variable (the target), a value (the object), and the assignment operator (=), which binds the variable to the value. The assignment operator in Python is one of the crucial operators in Python.