Python Appending With +=
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List of lists changes reflected across sublists unexpectedly
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Sum in Mathematica gives extra "+List"
54029
What is x after "x = x++"?
126217
What's the purpose of the + (pos) unary operator in Python?
62483
Addition is not working in JavaScript
64927
Appending multiple elements to sublists
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Why does this pattern with Plus not work for numbers?
120545
How to add an integer to each element in a list?
150558
Lua operators, why isn't +=, -= and so on defined?
11563
Appending to range function
72195
How to add leading zeros?
105728
Overriding "+=" in Python? (__iadd__() method)
18498
How do you append an int to a string in C++?
100132
What does the "+=" operator do in Java?
33262
How can two strings be concatenated?
11272
Python appending to two lists when it should only append to one
86293
How do I concatenate two strings in Java?