fix: correct issues with python3 no longer being available by default

tests/apps/python/app-cnb.json

@@ -0,0 +1,21 @@
+{
+  "healthchecks": {
+    "web": [
+      {
+        "attempts": 2,
+        "content": "python/http.server",
+        "name": "check-1",
+        "path": "/",
+        "timeout": 5,
+        "type": "startup",
+        "wait": 2
+      }
+    ]
+  },
+  "scripts": {
+    "dokku": {
+      "postdeploy": "touch /workspace/postdeploy.test",
+      "predeploy": "touch /workspace/predeploy.test"
+    }
+  }
+}

tests/apps/python/project2.toml

@@ -9,6 +9,8 @@ uri = "./cnb/1"
 [[build.buildpacks]]
 uri = "./cnb/1"
 
+[[build.buildpacks]]
+uri = "gcr.io/paketo-buildpacks/python"
 
 [[order.group]]
 uri = "gcr.io/paketo-buildpacks/procfile"

tests/apps/python/release.py

@@ -5,7 +5,8 @@ import os
 def main():
     print("GLOBAL_SECRET: {0}".format(os.getenv('GLOBAL_SECRET')))
     print("SECRET_KEY: {0}".format(os.getenv('SECRET_KEY')))
-    with open("/app/.env", "r") as f:
+    app_dir = os.getcwd()
+    with open(f"{app_dir}/.env", "r") as f:
         for line in f.readlines():
             if "DOTENV_KEY" in line:
                 print(line)