PermissionError: This app has encountered an error. The original error message is redacted to prevent data leaks. Full error details have been recorded in the logs (if you're on Streamlit Cloud, click on 'Manage app' in the lower right of your app)

Community Cloud
,
1

Hi guys,

I was trying to figure out some ways to add google analytics, and search console meta tags to my streamlit app for Google search indexing, and also to add some additional meta descriptions about my app for better Seo ranking. I added the following code snippet (which I got from this post) to test out the waters before adding the actual search console mate tags:

import streamlit as st
import os

def replace_in_file(filename, oldvalue, newvalue):
    """Replace string in a file and optionally create backup_filename."""
    # Read in the file
    with open(filename, "r") as f:
        filedata = f.read()

    # Replace the target string
    filedata = filedata.replace(oldvalue, newvalue)

    # Write the file out again
    with open(filename, "wb") as f:
        f.write(filedata)

st_dir = os.path.dirname(st.__file__)
index_filename = os.path.join(st_dir, "static", "index.html")
metadata = """<meta name="author" content="My Name, My Email">"""
replace_in_file(index_filename, "<head>", "<head>" + metadata)
print("Inserted metadata into:", index_filename)

Using this code snippet worked just fine locally, but is causing issues on the streamlit community cloud, I’m getting the following error:

PermissionError: This app has encountered an error. The original error message is redacted to prevent data leaks. Full error details have been recorded in the logs (if you're on Streamlit Cloud, click on 'Manage app' in the lower right of your app).
Traceback:
File "/home/adminuser/venv/lib/python3.11/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 589, in _run_script
    exec(code, module.__dict__)
File "/mount/src/my-resume/Home.py", line 328, in <module>
    main()
File "/mount/src/my-resume/Home.py", line 33, in main
    replace_in_file(index_filename, "<head>", "<head>" + tracking_code)
File "/mount/src/my-resume/Home.py", line 323, in replace_in_file
    with open(filename, "wb") as f:
         ^^^^^^^^^^^^^^^^^^^^

Looking into the logs, I can see the following errors:

PermissionError: [Errno 13] Permission denied: 
'/home/adminuser/venv/lib/python3.11/site-packages/streamlit/static/index.html'
2024-06-30 08:48:25.291 503 GET /script-health-check (127.0.0.1) 195.73ms
────────────────────── Traceback (most recent call last) ───────────────────────
/home/adminuser/venv/lib/python3.11/site-packages/streamlit/runtime/scriptru  nner/script_runner.py:589 in _run_script/mount/src/my-resume/Home.py:328 in <module>                    
              
    325                                                                         
    326                                                                         
    327 if __name__ == "__main__":                                              
  ❱ 328 │   main()                                                              
    329                                                                         
    330                                                                         

  /mount/src/my-resume/Home.py:33 in main                  
                     
     30   index_filename = os.path.join(st_dir, "static", "index.html")         
     31                                                                         
     32   metadata = """<meta name="author" content="My Name  
  ❱  33   replace_in_file(index_filename, "<head>", "<head>" + metadata)   
     34   print("Inserted tracking code into:", index_filename)                 
     35                                                                         

  /mount/src/my-resume/Home.py:323 in replace_in_file                           
                                                                            
    320 │   filedata = filedata.replace(oldvalue, newvalue)                     
    321 │                                                                       
    322 │   # Write the file out again                                          
  ❱ 323 │   with open(filename, "wb") as f:                                     
    324 │   │   f.write(filedata)                                               
    325                                                                         
    326

I tried changing the write permission from wb to w+, but the error persisted.

streamlit==1.35.0, Python==3.10.13