Fix python code tag

blog_posts/python-dict-getkey-vs-dictkey.md

@@ -11,7 +11,7 @@ A common debate among Python developers seems to stem from the retrieval of dict
 
 Although you can achieve the same result using either one, `dict.get()` is usually preferred, as it accepts a second argument which acts as the default value shall the key not exist in the given dictionary. Due to this property, `dict.get()` will always return a value, whereas `dict[key]` will raise a `KeyError` if the given key is missing.
 
-```python
+```py
 a = { 'max': 200 }
 b = { 'min': 100, 'max': 250 }
 c = { 'min': 50 }