Falon 3.0 submodule not import while running windows executable(pyinstaller)

Question

I am using the falcon 3.1.0 framework for microservice development in my product. Also I am creating windows executable using pyinstaller 4.10. I can run microservice using gevent and also create windows executable using pyinstaller. While running the executable it failed to import the falcon submodules but for falcon 2.0 it works. It raises the following error.

Traceback (most recent call last):
File "run_accountregistration.py", line 9, in <module>
File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module
File "app.py", line 6, in <module>
File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module
File "falcon__init__.py", line 32, in <module>
File "falcon\app.py", line 22, in init falcon.app
ImportError: cannot import name app_helpers
[5848] Failed to execute script 'run_accountregistration' due to unhandled exception!

for falcon 2.0 it works

(accregisterenv) C:\MUM_DEV_TEAM\edcservices\accountregistration-ps>dist\run_accountregistration\run_accountregistration.exe
Directory  logs  Created
Directory  account_registration  Created
Successfully fetch connection details
Server start running at 127.0.0.1:8005```