Add python tag to relevant posts

content/posts/concurrency-and-parallelism.md

@@ -1,7 +1,7 @@
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 title: Concurrency and Parallelism
 date: 2021-11-17
-tags: [programming]
+tags: [programming, python]
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 Concurrency is an exciting topic that's becoming more and more important, yet I see so many people that aren't very

content/posts/removing-list-duplicates.md

@@ -1,7 +1,7 @@
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 title: Removing duplicates from lists
 date: 2021-08-31
-tags: [programming]
+tags: [programming, python]
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 In programming, we often need to handle removing duplicates from an array-like structure. While this may seem like an

content/posts/typing-variance-of-generics.md

@@ -1,7 +1,7 @@
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 title: Variance of typing generics (covariance, contravariance and invariance)
 date: 2021-10-04
-tags: [programming]
+tags: [programming, python]
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 In many programming languages where typing matters we often need to define certain properties for the types of generics