Removed the dot at the beginning of the imported modules names because 'python3 -m doctest -v data_structures/hashing/*.py' and 'python3 -m doctest -v data_structures/stacks/*.py' were failing not finding hash_table.py and stack.py modules.

Author: brunohadlich

data_structures/hashing/double_hash.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-from .hash_table import HashTable
+from hash_table import HashTable
 from number_theory.prime_numbers import next_prime, check_prime
 
 

data_structures/hashing/hash_table_with_linked_list.py

@@ -1,4 +1,4 @@
-from .hash_table import HashTable
+from hash_table import HashTable
 from collections import deque
 
 

data_structures/hashing/quadratic_probing.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-from .hash_table import HashTable
+from hash_table import HashTable
 
 
 class QuadraticProbing(HashTable):

data_structures/stacks/infix_to_postfix_conversion.py

@@ -2,7 +2,7 @@
 from __future__ import absolute_import
 import string
 
-from .Stack import Stack
+from stack import Stack
 
 __author__ = 'Omkar Pathak'