Remove Python 2.7 support. (#5425)

* remove 2.7 from CI and publishing

* fill out classifiers and also make it not be installed on 3.5

* some minor bumps so that the old deps work on python 3.5

2 files changed, 9 insertions, 2 deletions

diff --git a/synapse/__init__.py b/synapse/__init__.py

index 5bc24863d9..0c01546789 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -17,6 +17,13 @@
 """ This is a reference implementation of a Matrix home server.
 """
 
+import sys
+
+# Check that we're not running on an unsupported Python version.
+if sys.version_info < (3, 5):
+    print("Synapse requires Python 3.5 or above.")
+    sys.exit(1)
+
 try:
     from twisted.internet import protocol
     from twisted.internet.protocol import Factory
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py

index 7dfa78dadb..11ace2bfb1 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -44,7 +44,7 @@ REQUIREMENTS = [
     "canonicaljson>=1.1.3",
     "signedjson>=1.0.0",
     "pynacl>=1.2.1",
-    "idna>=2",
+    "idna>=2.5",
 
     # validating SSL certs for IP addresses requires service_identity 18.1.
     "service_identity>=18.1.0",
@@ -65,7 +65,7 @@ REQUIREMENTS = [
     "sortedcontainers>=1.4.4",
     "psutil>=2.0.0",
     "pymacaroons>=0.13.0",
-    "msgpack>=0.5.0",
+    "msgpack>=0.5.2",
     "phonenumbers>=8.2.0",
     "six>=1.10",
     # prometheus_client 0.4.0 changed the format of counter metrics