Add python version to Pipfile and delete runtime.txt

Pipfile

@@ -5,6 +5,11 @@ verify_ssl = true
 name = "pypi"
 name = "pypi"
 
 
 
 
+[requires]
+
+python_version = "3.6"
+
+
 [packages]
 [packages]
 
 
 dj-database-url = "==0.4.2"
 dj-database-url = "==0.4.2"

Pipfile.lock

 {
 {
     "_meta": {
     "_meta": {
         "hash": {
         "hash": {
-            "sha256": "b785c7a0271af685b283e81e66e4dc2f7136cd50c80fb95d5af27c54e8152a20"
+            "sha256": "ff5283b1446f7f61c75e666698605e5ef3524efdf420272214127c8d05af8c37"
         },
         },
         "host-environment-markers": {
         "host-environment-markers": {
             "implementation_name": "cpython",
             "implementation_name": "cpython",
@@ -17,7 +17,9 @@
             "sys_platform": "darwin"
             "sys_platform": "darwin"
         },
         },
         "pipfile-spec": 6,
         "pipfile-spec": 6,
-        "requires": {},
+        "requires": {
+            "python_version": "3.6"
+        },
         "sources": [
         "sources": [
             {
             {
                 "name": "pypi",
                 "name": "pypi",

runtime.txt

-python-3.6.3