solves contains duplicate in python

Author: anishLearnsToCode

README.md

@@ -61,7 +61,7 @@
 | 204 | [Count Primes](https://leetcode.com/problems/count-primes) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/CountPrimes.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/count_primes.py) |
 | 205 | [Isomorphic Strings](https://leetcode.com/problems/isomorphic-strings) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/IsomorphicStrings.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/isomorphic_strings.py) |
 | 206 | [Reverse Linked Lists](https://leetcode.com/problems/reverse-linked-list) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ReverseLinkedList.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/reverse_linked_list.py) |
-| 217 | [Contains Duplicate](https://leetcode.com/problems/contains-duplicate) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ContainsDuplicate.java) |
+| 217 | [Contains Duplicate](https://leetcode.com/problems/contains-duplicate) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ContainsDuplicate.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/contains_duplicate.py) |
 | 219 | [Contains Duplicate II](https://leetcode.com/problems/contains-duplicate-ii) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ContainsDuplicateII.java) |
 | 225 | [Implement Stack using Queues](https://leetcode.com/problems/implement-stack-using-queues) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/MyStack.java) |
 | 226 | [Invert Binary Tree](https://leetcode.com/problems/invert-binary-tree) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/InvertBinaryTree.java) |

python/contains_duplicate.py

@@ -0,0 +1,11 @@
+from typing import List
+
+
+class Solution:
+    def containsDuplicate(self, nums: List[int]) -> bool:
+        numbers = set()
+        for number in nums:
+            if number in numbers:
+                return True
+            numbers.add(number)
+        return False