Change python version to 3.7

Debian will get this soon!

.circleci/config.yml

@@ -3,7 +3,7 @@ version: 2.0
 jobs:
     build:
         docker:
-            - image: circleci/python:3.5
+            - image: circleci/python:3.7
         environment:
             BASIC_AUTH: "username:password"
         steps:

Pipfile

@@ -14,7 +14,7 @@ flake8-print = "*"
 flake8-tuple = "*"
 
 [requires]
-python_version = "3.5"
+python_version = "3.7"
 
 [scripts]
 start = "python3 -m actioner"

Pipfile.lock

@@ -1,11 +1,11 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "02a1333dca8ccc32369c019b489cb122508593d04aa84af2526779b75d6ce89a"
+            "sha256": "61ea95b79f952977fd27ba5047da2443b0fc81683a47f79bc99c5f03334bb0ba"
         },
         "pipfile-spec": 6,
         "requires": {
-            "python_version": "3.5"
+            "python_version": "3.7"
         },
         "sources": [
             {
@@ -101,13 +101,6 @@
             ],
             "version": "==2.8"
         },
-        "idna-ssl": {
-            "hashes": [
-                "sha256:a933e3bb13da54383f9e8f35dc4f9cb9eb9b3b78c6b36f311254d6d0d92c6c7c"
-            ],
-            "markers": "python_version < '3.7'",
-            "version": "==1.1.0"
-        },
         "multidict": {
             "hashes": [
                 "sha256:024b8129695a952ebd93373e45b5d341dbb87c17ce49637b34000093f243dd4f",
@@ -172,11 +165,11 @@
         },
         "sentry-sdk": {
             "hashes": [
-                "sha256:131e3b9ac11dffd86fe4f1f5d388d3dab372fc9e30d6611d1fc87096a1d67359",
-                "sha256:e925a2363178c211ad787f507cedda12ee5b0aadf5ac390950140393636a80bb"
+                "sha256:6f4e264d0ad6267c40e20431a6a50f815515805ffe8eb9815340adf931279523",
+                "sha256:ded1a85821d555dd68abdc0a8e7e4eee7b096f8a6d7a4821228b52a62a465f07"
             ],
             "index": "pypi",
-            "version": "==0.7.2"
+            "version": "==0.7.3"
         },
         "six": {
             "hashes": [
@@ -192,15 +185,6 @@
             "index": "pypi",
             "version": "==7.0.19"
         },
-        "typing-extensions": {
-            "hashes": [
-                "sha256:07b2c978670896022a43c4b915df8958bec4a6b84add7f2c87b2b728bda3ba64",
-                "sha256:f3f0e67e1d42de47b5c67c32c9b26641642e9170fe7e292991793705cd5fef7c",
-                "sha256:fb2cd053238d33a8ec939190f30cfd736c00653a85a2919415cecf7dc3d9da71"
-            ],
-            "markers": "python_version < '3.7'",
-            "version": "==3.7.2"
-        },
         "tzlocal": {
             "hashes": [
                 "sha256:27d58a0958dc884d208cdaf45ef5892bf2a57d21d9611f2ac45e51f1973e8cab",
@@ -282,11 +266,11 @@
         },
         "flake8": {
             "hashes": [
-                "sha256:c3ba1e130c813191db95c431a18cb4d20a468e98af7a77e2181b68574481ad36",
-                "sha256:fd9ddf503110bf3d8b1d270e8c673aab29ccb3dd6abf29bae1f54e5116ab4a91"
+                "sha256:6d8c66a65635d46d54de59b027a1dda40abbe2275b3164b634835ac9c13fd048",
+                "sha256:6eab21c6e34df2c05416faa40d0c59963008fff29b6f0ccfe8fa28152ab3e383"
             ],
             "index": "pypi",
-            "version": "==3.7.5"
+            "version": "==3.7.6"
         },
         "flake8-comprehensions": {
             "hashes": [