Rename articles prefixed with python-

snippets/python/s/dict-getkey-vs-dictkey.md

@@ -0,0 +1,23 @@
+---
+title: "Tip: You should use dict.get(key) instead of dict[key]"
+shortTitle: dict.get(key) vs dict[key]
+type: tip
+language: python
+tags: [dictionary]
+cover: compass-2
+excerpt: Learn the difference between two common ways to access values in Python dictionaries and level up your code today.
+dateModified: 2021-06-12T19:30:41+03:00
+---
+
+A common debate among Python developers seems to stem from the retrieval of dictionary values, which can be accomplished using either `dict[key]` or `dict.get(key)`.
+
+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.
+
+```py
+a = { 'max': 200 }
+b = { 'min': 100, 'max': 250 }
+c = { 'min': 50 }
+
+a['min'] + b['min'] + c['min'] # throws KeyError
+a.get('min', 0) + b.get('min', 0) + c.get('min', 0) # 150
+```