Python 3 migration: BREAKING CHANGE

All in on Python 3 for Python 2.7 EOL in 2020

.circleci/config.yml

@@ -4,7 +4,7 @@ jobs:
     services:
       - docker
     docker:
-      - image: circleci/python:2.7-stretch-browsers
+      - image: circleci/python:3.7-stretch-browsers
       - image: mysql/mysql-server:5.7
         environment:
           - MYSQL_ALLOW_EMPTY_PASSWORD=1

configs/config.dev.yaml

@@ -55,7 +55,8 @@ qr_login_url: Null
 ## Refer to their class name in this array.
 ## The webhook will be available at /v0/webhooks/$name and requires being called with
 ## ?application=xxx&key=xxx
-#webhooks: []
+webhooks:
+  - alertmanager
 
 #####################
 ### Iris-sender

ops/entrypoint.py

@@ -14,7 +14,7 @@
 
 
 def load_sqldump(config, sqlfile, one_db=True):
-    print 'Importing %s...' % sqlfile
+    print('Importing %s...' % sqlfile)
     with open(sqlfile) as h:
         cmd = ['/usr/bin/mysql', '-h', config['host'], '-u',
                config['user'], '-p' + config['password']]
@@ -24,17 +24,17 @@ def load_sqldump(config, sqlfile, one_db=True):
         proc.communicate()
 
         if proc.returncode == 0:
-            print 'DB successfully loaded ' + sqlfile
+            print('DB successfully loaded ' + sqlfile)
             return True
         else:
-            print ('Ran into problems during DB bootstrap. '
+            print(('Ran into problems during DB bootstrap. '
                    'IRIS will likely not function correctly. '
-                   'mysql exit code: %s for %s') % (proc.returncode, sqlfile)
+                   'mysql exit code: %s for %s') % (proc.returncode, sqlfile))
             return False
 
 
 def wait_for_mysql(config):
-    print 'Checking MySQL liveness on %s...' % config['host']
+    print('Checking MySQL liveness on %s...' % config['host'])
     db_address = (config['host'], 3306)
     tries = 0
     while True:
@@ -45,17 +45,17 @@ def wait_for_mysql(config):
             break
         except socket.error:
             if tries > 20:
-                print 'Waited too long for DB to come up. Bailing.'
+                print('Waited too long for DB to come up. Bailing.')
                 sys.exit(1)
 
-            print 'DB not up yet. Waiting a few seconds..'
+            print('DB not up yet. Waiting a few seconds..')
             time.sleep(2)
             tries += 1
             continue
 
 
 def initialize_mysql_schema(config):
-    print 'Initializing Iris database'
+    print('Initializing Iris database')
     # disable one_db to let schema_0.sql create the database
     re = load_sqldump(config, os.path.join(dbpath, 'schema_0.sql'), one_db=False)
     if not re:
@@ -71,7 +71,7 @@ def initialize_mysql_schema(config):
         sys.stderr.write('Failed to load dummy data.')
 
     with open(initializedfile, 'w'):
-        print 'Wrote %s so we don\'t bootstrap db again' % initializedfile
+        print('Wrote %s so we don\'t bootstrap db again' % initializedfile)
 
 
 def main():

setup.py

@@ -15,20 +15,20 @@
     include_package_data=True,
     install_requires=[
         'streql==3.0.2',
-        'dnspython==1.14.0',
+        'dnspython==1.16.0',
         'phonenumbers==7.4.1',
         'twilio==4.5.0',
         'google-api-python-client==1.4.2',
         'oauth2client==1.4.12',
         'slackclient==0.16',
-        'PyYAML==3.11',
-        'gevent==1.1.2',
+        'PyYAML==3.13',
+        'gevent==1.4.0',
         'falcon==1.1.0',
         'falcon-cors==1.1.2',
         'ujson==1.35',
         'requests==2.20.0',
-        'PyMySQL==0.7.2',
-        'SQLAlchemy==1.0.11',
+        'PyMySQL==0.9.3',
+        'SQLAlchemy==1.3.0',
         'Jinja2==2.10',
         'importlib==1.0.3',
         'Markdown==2.4.1',
@@ -47,7 +47,7 @@
         'pyqrcode==1.2.1'
     ],
     extras_require={
-        'kazoo': ['kazoo==2.3.1'],
+        'kazoo': ['kazoo==2.6.1'],
         # plugin deps
         'influxdb': ['influxdb'],
         'prometheus': ['prometheus_client'],

src/iris/__main__.py

@@ -15,5 +15,5 @@
     app = API(config)
     logging.basicConfig()
     server = config['server']
-    print 'LISTENING: %(host)s:%(port)d' % server
+    print('LISTENING: %(host)s:%(port)d' % server)
     WSGIServer((server['host'], server['port']), app).serve_forever()