fix python3 and python2.7 runtime errors

4 files changed, 13 insertions, 9 deletions

diff --git a/croniter/__init__.py b/croniter/__init__.py
index e749a57..608bc5a 100644
--- a/croniter/__init__.py
+++ b/croniter/__init__.py
@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 # defer imports to be accesible in setup.py
-from _release import (
+from ._release import (
     __doc__,
     __author__,
     __version__,
     __license__,
 )
-from croniter import croniter
+from .croniter import croniter
diff --git a/croniter/croniter.py b/croniter/croniter.py
index c1575a6..7453997 100644
--- a/croniter/croniter.py
+++ b/croniter/croniter.py
@@ -85,10 +85,14 @@ class croniter(object):
                     if (not low or not high or int(low) > int(high)
                         or not only_int_re.search(str(step))):
                         raise ValueError("[%s] is not acceptable" %expr_format)
-
-                    for j in xrange(int(low), int(high)+1):
-                        if j % int(step) == 0:
-                            e_list.append(j)
+                    try: 
+                        for j in xrange(int(low), int(high)+1):
+                            if j % int(step) == 0:
+                                e_list.append(j)
+                    except NameError:
+                        for j in range(int(low), int(high)+1):
+                            if j % int(step) == 0:
+                                e_list.append(j)
                 else:
                     if not star_or_int_re.search(t):
                         t = self.ALPHACONV[i][t.lower()]
@@ -267,7 +271,7 @@ class croniter(object):
                 continue
             return mktime(dst.timetuple())
 
-        raise "failed to find prev date"
+        raise Exception("failed to find prev date")
 
     def _get_next_nearest(self, x, to_check):
         small = [item for item in to_check if item < x]
diff --git a/croniter/croniter_test.py b/croniter/croniter_test.py
index 89d8581..5203696 100644
--- a/croniter/croniter_test.py
+++ b/croniter/croniter_test.py
@@ -3,7 +3,7 @@
 
 import unittest
 from datetime import datetime
-from croniter import croniter
+from .croniter import croniter
 
 class CroniterTest(unittest.TestCase):
   def testSecond(self):
diff --git a/croniter/speed_test.py b/croniter/speed_test.py
index 362db47..02ea189 100644
--- a/croniter/speed_test.py
+++ b/croniter/speed_test.py
@@ -3,7 +3,7 @@
 
 import time
 from datetime import datetime, date
-from croniter import croniter
+from .croniter import croniter
 
 class timerTest(object):
     def __init__(self):