updated contents from Atlas repo

sequences/bisect_in.py

@@ -0,0 +1,29 @@
+
+"""
+    >>> bisect_in([], 1)
+    False
+    >>> import array
+    >>> import random
+    >>> SIZE = 10
+    >>> my_array = array.array('l', range(0, SIZE, 2))
+    >>> random.seed(42)
+    >>> for i in range(SIZE):
+    ...     print(i, bisect_in(my_array, i))
+    0 True
+    1 False
+    2 True
+    3 False
+    4 True
+    5 False
+    6 True
+    7 False
+    8 True
+    9 False
+"""
+
+from bisect import bisect
+
+def bisect_in(seq, item):
+    pos = bisect(seq, item)
+    return seq[pos-1] == item if seq else False
+