> Source: [sk170306](https://support.checkpoint.com/results/sk/sk170306)

# sk170306 - basic_server.py execution fails on installation of SmartConsole Extension Tailored Safe Offline Version

| Property | Value |
|----------|-------|
| Solution ID | sk170306 |
| Date Created | 2020-11-02 |
| Last Modified | 2021-04-15 |
| Technical Level | Advanced |
| Products | SmartConsole |
| Versions | R82.10, R82.20, R82, R81.20 |

## Symptoms

- * Execution of `basic_server.py` fails:  

  `"basic_server.py", line 1, in <module> from flask import Flask, request, send_from_directory ModuleNotFoundError: No module named 'flask'"`

* basic_server.py fails:` "File "C:\Users\<user>\AppData\Local\Programs\Python\Python39\lib\site-packages\werkzeug\serving.py", line 506, in generate_adhoc_ssl_pair from cryptography import x509 ModuleNotFoundError: No module named 'cryptography'"`

## Cause

After the basic install of Python 3.9.0 from [www.python.org/downloads](https://www.python.org/downloads "Python") additional modules are required to be installed before running **basic_server.py** from Smart_Console_Extension_Tailored_Safe_Offline_Version.zip.

## Solution

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