Support Python 3

	modified:   .gitignore
	modified:   dbsnap_verify/__init__.py
	modified:   dbsnap_verify/rds_funcs.py
	modified:   dbsnap_verify/state_doc.py

.gitignore

@@ -51,6 +51,9 @@ coverage.xml
 *.cover
 .hypothesis/
 
+# pytest
+.pytest_cache
+
 # Translations
 *.mo
 *.pot

dbsnap_verify/__init__.py

@@ -1,4 +1,4 @@
-from rds_funcs import (
+from .rds_funcs import (
     get_latest_snapshot,
     get_database_description,
     restore_from_latest_snapshot,
@@ -9,14 +9,14 @@
     rds_event_messages,
 )
 
-from state_doc import (
+from .state_doc import (
     current_state,
     transition_state,
     get_or_create_state_doc,
     clean_state_doc,
 )
 
-from time_funcs import (
+from .time_funcs import (
     now_datetime,
     timestamp_to_datetime,
     datetime_to_date_str,

dbsnap_verify/rds_funcs.py

@@ -2,10 +2,12 @@
 
 from random import choice
 
-from string import (
-    letters,
-    digits,
-)
+from string import digits
+
+try:
+    from string import letters
+except ImportError:
+    from string import ascii_letters as letters
 
 VALID_SNAPSHOT_TYPES = ["automated", "manual"]
 
@@ -45,7 +47,7 @@ def get_available_snapshots(session, db_id, snapshot_type=None):
     r = session.describe_db_snapshots(**args)
     snapshots = r['DBSnapshots']
     snapshots.sort(key=itemgetter("SnapshotCreateTime"))
-    return filter(lambda x: x["Status"] == "available", snapshots)
+    return list(filter(lambda x: x["Status"] == "available", snapshots))
 
 
 def get_latest_snapshot(session, db_id, snapshot_type=None):

dbsnap_verify/state_doc.py

@@ -4,14 +4,14 @@
 
 import boto3
 
-from time_funcs import (
+from .time_funcs import (
     now_timestamp,
     today_datetime,
     add_days_to_datetime,
     subtract_days_from_datetime,
     datetime_to_timestamp,
 )
-from rds_funcs import dbsnap_verify_db_id
+from .rds_funcs import dbsnap_verify_db_id
 
 DB_ID_PREFIX_LEN = 14