diff --git a/bots/check-mirroring b/bots/check-mirroring
index bfc5588..775c7e8 100755
--- a/bots/check-mirroring
+++ b/bots/check-mirroring
@@ -163,7 +163,7 @@ for tries in xrange(10):
         if missing == 0:
             actually_subscribed = True
             break
-    except IOError, e:
+    except IOError as e:
         if "SERVNAK received" in e:
             logger.error("SERVNAK repeatedly received, punting rest of test")
         else:
diff --git a/bots/log2zulip b/bots/log2zulip
index 8907a72..449ddeb 100755
--- a/bots/log2zulip
+++ b/bots/log2zulip
@@ -20,7 +20,7 @@ def mkdir_p(path):
     # Python doesn't have an analog to `mkdir -p` < Python 3.2.
     try:
         os.makedirs(path)
-    except OSError, e:
+    except OSError as e:
         if e.errno == errno.EEXIST and os.path.isdir(path):
             pass
         else:
@@ -98,6 +98,6 @@ if __name__ == "__main__":
     finally:
         try:
             os.remove(lock_path)
-        except OSError, IOError:
+        except OSError as IOError:
             pass
 
diff --git a/integrations/asana/zulip_asana_mirror b/integrations/asana/zulip_asana_mirror
index 9729af9..b5b498a 100755
--- a/integrations/asana/zulip_asana_mirror
+++ b/integrations/asana/zulip_asana_mirror
@@ -44,7 +44,7 @@ import sys
 try:
     import dateutil.parser
     import dateutil.tz
-except ImportError, e:
+except ImportError as e:
     print >>sys.stderr, e
     print >>sys.stderr, "Please install the python-dateutil package."
     exit(1)
diff --git a/integrations/codebase/zulip_codebase_mirror b/integrations/codebase/zulip_codebase_mirror
index 847cef6..1bab1a8 100755
--- a/integrations/codebase/zulip_codebase_mirror
+++ b/integrations/codebase/zulip_codebase_mirror
@@ -40,7 +40,7 @@ from datetime import datetime, timedelta
 
 try:
     import dateutil.parser
-except ImportError, e:
+except ImportError as e:
     print >>sys.stderr, e
     print >>sys.stderr, "Please install the python-dateutil package."
     exit(1)
diff --git a/integrations/rss/rss-bot b/integrations/rss/rss-bot
index 20070ca..73469f2 100755
--- a/integrations/rss/rss-bot
+++ b/integrations/rss/rss-bot
@@ -87,7 +87,7 @@ def mkdir_p(path):
     # Python doesn't have an analog to `mkdir -p` < Python 3.2.
     try:
         os.makedirs(path)
-    except OSError, e:
+    except OSError as e:
         if e.errno == errno.EEXIST and os.path.isdir(path):
             pass
         else: