Create Binary_search in python

Binary_search in python

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+def binary_search(arr, low, high, x): 
+
+
+
+    # Check base case 
+
+    if high >= low: 
+
+
+
+        mid = (high + low) // 2
+
+
+
+        # If element is present at the middle itself 
+
+        if arr[mid] == x: 
+
+            return mid 
+
+
+
+        # If element is smaller than mid, then it can only 
+
+        # be present in left subarray 
+
+        elif arr[mid] > x: 
+
+            return binary_search(arr, low, mid - 1, x) 
+
+
+
+        # Else the element can only be present in right subarray 
+
+        else: 
+
+            return binary_search(arr, mid + 1, high, x) 
+
+
+
+    else: 
+
+        # Element is not present in the array 
+
+        return -1
+
+
+# Test array 
+
+arr = [ 2, 3, 4, 10, 40 ] 
+
+x = 10
+
+
+# Function call 
+
+result = binary_search(arr, 0, len(arr)-1, x) 
+
+
+
+if result != -1: 
+
+    print("Element is present at index", str(result)) 
+
+else: 
+
+    print("Element is not present in array")