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+--- Thread: Python sorts all arrays instead of one. (/thread-20843.html)
Python sorts all arrays instead of one. - Alex009988 - Sep-02-2019
Hello. I want only to sort c1. Using that code it sorts both c and c1
def f(v):
x=v[0]
y=v[1]
return x**2 + x*y + y**2 - 6*x - 9*y
v1 = [0, 0]
v2 = [1, 0]
v3 = [0, 1]
v=[v1,v2,v3]
c=[f(v1),f(v2),f(v3)]
c1=c
c1.sort()
print(*c)
print(*c1)How to get sorted only c1?
RE: Python sorts all arrays instead of one. - buran - Sep-02-2019
https://python-forum.io/Thread-List-modification-returns-none?pid=90218#pid90218
RE: Python sorts all arrays instead of one. - DeaD_EyE - Sep-02-2019
Make a copy of the list. The inline sort mutates the list.
It's like appending, removing or inserting items.
The names c and c1 referring to the same object.
If you don't want to mutate the list, you can use the built-in function
sorted(). This does not mutate the object, sorted creates a new list, which is sorted.