Update tests environment

Author: ayalash

Makefile

@@ -10,9 +10,7 @@ env: .env/.up-to-date
 
 
 .env/.up-to-date: setup.py Makefile
-	virtualenv --no-site-packages .env
+	python -m virtualenv .env
 	.env/bin/pip install -e ".[testing]"
-	test -d .env/mailboxer || git clone https://github.com/vmalloc/mailboxer .env/mailboxer
-	.env/bin/pip install -r .env/mailboxer/deps/base.txt -r .env/mailboxer/deps/develop.txt -r .env/mailboxer/deps/app.txt
 	touch $@
 

tests/test_mailboxer.py

@@ -1,4 +1,4 @@
-from itertools import izip_longest
+from itertools import zip_longest
 
 
 def test_get_mailboxes_empty(mailboxer):
@@ -10,7 +10,7 @@ def test_delete_mailbox(mailboxer, mailbox):
     assert len(mailboxer.get_mailboxes()) == 0
 
 def test_get_mailboxes_single_page(mailboxer, mailboxes):
-    query = mailboxer.get_mailboxes(page_size=len(mailboxes) / 2)
-    for mailbox, expected in izip_longest(query, mailboxes, fillvalue=None):
+    query = mailboxer.get_mailboxes(page_size=len(mailboxes) // 2)
+    for mailbox, expected in zip_longest(query, mailboxes, fillvalue=None):
         assert mailbox.address == expected.address
     assert len(query) == len(mailboxes)