optimized imports, added defaults to env

githubapp/__init__.py

@@ -1,15 +1,14 @@
-import import_env_file
 import os
+from distutils.util import strtobool
+
 from .core import GitHubApp
 from .ldap import LDAPClient
-
 from .version import __version__
 
 __all__ = ['GitHubApp', 'LDAPClient']
 
 # Set default logging handler to avoid "No handler found" warnings.
 import logging
-from logging import NullHandler
 
 # Set initial level to WARN. Users must manually enable logging for
 # flask_githubapp to see our logging.
@@ -19,4 +18,8 @@ rootlogger = logging.getLogger(__name__)
 if rootlogger.level == logging.NOTSET:
     rootlogger.setLevel(logging.WARN)
 
-CRON_INTERVAL = os.environ['SYNC_SCHEDULE']
+CRON_INTERVAL = os.environ.get('SYNC_SCHEDULE', '0 * * * *')
+CHANGE_THRESHOLD = os.environ.get('CHANGE_THRESHOLD', 25)
+REPO_FOR_ISSUES = os.environ.get('REPO_FOR_ISSUES')
+ISSUE_ASSIGNEE = os.environ.get('ISSUE_ASSIGNEE')
+OPEN_ISSUE_ON_FAILURE = strtobool(os.environ.get('OPEN_ISSUE_ON_FAILURE', False))