Update app.py

app.py

@@ -17,7 +17,7 @@ try:
 except:
     print ("openbabel not found, Installing openbabel ")
     s2 = os.system("wget 'https://repo.continuum.io/miniconda/Miniconda3-4.5.4-Linux-x86_64.sh' && bash Miniconda3-4.5.4-Linux-x86_64.sh -bfp /home/user/app/local")
-    s1 = os.system("/home/user/app/local/conda install -c conda-forge openbabel -y")
+    s1 = os.system("/home/user/app/local/bin/conda install -c conda-forge openbabel -y")
     print(s2)
     print(s1)