chore(Python): add remove duplicates in list (#711)

algorithms/Python/README.md

@@ -5,6 +5,7 @@
 - [Majority Element](arrays/majority_element.py)
 - [Rotate Array](arrays/rotate_array.py)
 - [Missing Number](arrays/missing_number.py)
+- [Remove duplicate items](arrays/remove_duplicates_list.py)
 
 ## Linked Lists
 - [Doubly](linked_lists/doubly.py)
@@ -71,4 +72,4 @@
 - [Binary Search Tree](trees/binary_search_tree.py)
 
 ## Queues
-- [First in First out Queue](queues/fifo-queue.py)
+- [First in First out Queue](queues/fifo-queue.py)

algorithms/Python/arrays/remove_duplicates_list.py

@@ -0,0 +1,33 @@
+"""
+Algorithm Type : Array Traversal
+Time Complexity : O(n)
+Space Complexity : O(1)
+"""
+
+sample_case = [0, 0, 1, 1, 1, 2, 2, 3, 3, 4]
+
+
+def make_distinct(values: list) -> list:
+    """
+    Remove duplicate elements in an array inplace without creating new array.
+
+    Here, we are iterating the list backwards instead of forward because if we
+    remove elements in an array it will cause some issues.
+
+    Note : Wrapped with * are sample.
+    """
+    # *length = 10*
+    length = len(values)
+    for index in range(len(values)):
+        # *index_position = 0 - 10*
+        # *index_position = -10*
+        index_position = index - length
+        if values[index_position] in values[0:index_position]:
+            values.remove(values[index_position])
+
+    return values
+
+
+if __name__ == "__main__":
+    print(make_distinct(sample_case))
+