Switch to virtual env

main.py

@@ -1,5 +1,6 @@
 import sys, os
-import psycopg2
+import psycopg2 as pg2
+import flask as f
 
 def main(args):
     pass

requirements.txt

@@ -1 +1,7 @@
+click==7.1.2
+Flask==1.1.2
+itsdangerous==1.1.0
+Jinja2==2.11.2
+MarkupSafe==1.1.1
 psycopg2==2.8.5
+Werkzeug==1.0.1