Version bump to py3.7

Pipfile

@@ -17,6 +17,7 @@ hashids = "==1.2.0"
 django-cas-client = "*"
 requests = "*"
 mysqlclient = "*"
+djangorestframework = "*"
 
 [requires]
 python_version = "3.7"

Pipfile.lock

 {
     "_meta": {
         "hash": {
-            "sha256": "344d6a76321ef5bfb303fa700366e26def98b9504ec878359c6e2fe255ce9ef1"
+            "sha256": "bdea5532bb3583afe0508086a4acd7186b5c21fad2de7f9bcd73dd0381ee51e7"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -69,6 +69,14 @@
             "index": "pypi",
             "version": "==1.7.1"
         },
+        "djangorestframework": {
+            "hashes": [
+                "sha256:b6714c3e4b0f8d524f193c91ecf5f5450092c2145439ac2769711f7eba89a9d9",
+                "sha256:c375e4f95a3a64fccac412e36fb42ba36881e52313ec021ef410b40f67cddca4"
+            ],
+            "index": "pypi",
+            "version": "==3.8.2"
+        },
         "hashids": {
             "hashes": [
                 "sha256:6539b892a426e75747a9c0ad69409e9566f9c21b79310fc3424b5b6726f28da6"