This question already has answers here:
What does `<>` mean in Python?
(5 answers)
Closed 8 years ago.
I just saw some code using the <> operator (don't know what this is called) instead of the != operator in Python. Is there any difference between the two or do they mean the same thing? What's the <> operator called? Thanks.
The <> operator is considered obsolete:
https://docs.python.org/2/reference/expressions.html#not-in
Related
This question already has answers here:
Understanding the "is" operator [duplicate]
(11 answers)
Closed 9 months ago.
This post was edited and submitted for review 9 months ago and failed to reopen the post:
Original close reason(s) were not resolved
What is the difference between the is keyword and the == operator in Python? Why would a programmer need to use one over the other depending on the situation?
The == operator compares the value or equality of two objects, whereas the Python is operator checks whether two variables point to the same object in memory.
This question already has answers here:
What is the '#=' symbol for in Python?
(3 answers)
What does the "at" (#) symbol do in Python?
(14 answers)
Closed 3 years ago.
I have come across this code and I have seen this unusual operation:
return Xtrain # eigenvectors[:2]
Does anyone know what it does?
Python documentation says:
Matrix Multiplication
Operator
a # b
Function
matmul(a, b)
This question already has answers here:
Boolean Python Value confusion
(2 answers)
How do "and" and "or" act with non-boolean values?
(8 answers)
Closed 4 years ago.
I came across this piece of Python code. The precise function is not important. I'm trying to understand how the arguments to the json.dumps call work. It looks (at a guess) like the intent is to use either body or kwargs['body'] depending on which one is non-null, but doesn't the or operator just return a boolean?
import json
from aiohttp import web
def json_response(body='', **kwargs):
kwargs['body'] = json.dumps(body or kwargs['body']).encode('utf-8')
kwargs['content_type'] = 'text/json'
return web.Response(**kwargs)
This question already has answers here:
What is the difference between != and <>? [duplicate]
(3 answers)
Closed 6 years ago.
As I know using "<>" is deprecated for using inequality and "!=" operator should be used for this purpose.
Is it just a style difference or there is a difference in functionality?
They are exactly the same, though <> is deprecated like you said:
<> and != are alternate spellings for the same operator. != is the preferred spelling; <> is obsolescent.
This question already has answers here:
What does `<>` mean in Python?
(5 answers)
Closed 9 years ago.
So, I'm making a python cheat sheet for myself, and when I started covering comparison operators, I noticed these two:
a = 1
b = 2
if a != b:
print("Dunno")
if a <> b:
print("Dunno")
I'm using python 2.7 and was curious if there's a difference between the two operators?
As described in the documentation, they are the same. <> is deprecated and was removed in Python 3, so you should use !=.
<> is deprecated. Other than that, no.