try to install needed module from code

app.py

@@ -1,6 +1,16 @@
-import sys
+import sys, os
 import gradio as gr
 
+## if kgen not exist
+try:
+    import kgen
+except:
+    GH_TOKEN = os.getenv("GITHUB_TOKEN")
+    git_url = f"https://{GH_TOKEN}@github.com/KohakuBlueleaf/TITPOP-KGen@titpop"
+
+    ## call pip install
+    os.system(f"pip install git+{git_url}")
+
 import re
 import random
 from time import time

requirements.txt

@@ -1,3 +1,2 @@
-git+https://${GITHUB_TOKEN}@github.com/KohakuBlueleaf/TITPOP-KGen@titpop
 gradio
 spaces