Update 0435.无重叠区间.md

Added python version code

problems/0435.无重叠区间.md

@@ -212,7 +212,19 @@ class Solution {
 ```
 
 Python：
-
+```python
+class Solution:
+    def eraseOverlapIntervals(self, intervals: List[List[int]]) -> int:
+        if len(intervals) == 0: return 0
+        intervals.sort(key=lambda x: x[1])
+        count = 1 # 记录非交叉区间的个数
+        end = intervals[0][1] # 记录区间分割点
+        for i in range(1, len(intervals)):
+            if end <= intervals[i][0]:
+                count += 1
+                end = intervals[i][1]
+        return len(intervals) - count
+```
 
 Go：