added my solution to 26

Python/26_Remove_Duplicates_from_Sorted_Array.py

@@ -0,0 +1,8 @@
+class Solution:
+    def removeDuplicates(self, nums: List[int]) -> int:
+        i = 1
+        while i<len(nums): #traverse array
+            if nums[i] == nums[i-1]: #if the current element is same as previous, then remove
+                nums.pop(i)
+            else:
+                i += 1