添加0035.搜索插入位置Python3版本

problems/0035.搜索插入位置.md

@@ -237,6 +237,22 @@ class Solution {
 
 
 Python：
+```python3
+class Solution:
+    def searchInsert(self, nums: List[int], target: int) -> int:
+        left, right = 0, len(nums) - 1 
+        
+        while left <= right:
+            middle = (left + right) // 2
+            
+            if nums[middle] < target:
+                left = middle + 1
+            elif nums[middle] > target:
+                right = middle - 1
+            else: 
+                return middle
+        return right + 1
+```
 
 
 Go：