Rename articles prefixed with python-

snippets/python/s/identity-equality.md

@@ -0,0 +1,45 @@
+---
+title: What is the difference between Python's equality operators?
+shortTitle: Python equality operators
+type: question
+language: python
+tags: [type,comparison]
+cover: umbrellas
+excerpt: Python provides two distinct comparison operators for different task. Stop mixing them up using this quick guide.
+dateModified: 2021-06-12T19:30:41+03:00
+---
+
+Python provides two very similar equality operators used for comparisons:
+
+- The double equals (`==`), also known as the equality operator
+- The `is` keyword, also known as the identity operator
+
+Although similar to one another, the double equals (`==`) and the `is` keyword are used for different comparison purposes and yield different results.
+
+The main difference between the two is that the `is` keyword checks for reference equality while the double equals (`==`) operator checks for value equality. In other words, `is` will return `True` if two variables both refer to the same object in memory (aka. identity), whereas the double equals operator will evaluate to `True` if the two objects have the same value.
+
+Here are some examples to clear up any confusion:
+
+```py
+a = [1, 2, 3]
+b = a
+c = [x for x in a]
+
+print([
+  a == b, # True
+  a is b, # True
+  a == c, # True
+  a is c  # False
+])
+
+x = 'hi'
+y = x
+z = 'HI'.lower()
+
+print([
+  x == y, # True
+  x is y, # True
+  x == z, # True
+  x is z  # False
+])
+```