pywinauto scripts work differently in execution of file vs interactive mode

I'm trying to make a script for Windows application. But the script works differently when executing the file (python test.py) vs. Python interactive mode.

Here is the code.

import pywinauto

app = pywinauto.application.Application()
app.start(r"C:\customPrograms\ControlStation.exe")
    
app.window(title_re=u'Login').Wait('visible', timeout=60, retry_interval=1)

dlg = app.Login
dlg.Edit1.TypeKeys("testSuper")
dlg.PasswordEdit.TypeKeys("test")
dlg.OK.SetFocus()
dlg.OK.click()

app.window(title_re=u'Room select').Wait('visible', timeout=60, 
retry_interval=1)

roomdlg = app.Roomselect
roomdlg.Connect.click()

app = pywinauto.Application().connect(title='tmpSuper - local')
app.testSuper.MenuBar.MenuBarClickInput('#4->#1->#0', app)
app.testSuper.People.click()

When I run this script as a file (python test.py), I've got this error:

pywinauto.base_wrapper.ElementNotEnabled

enter image description here

When I run the scripts one by one in an interactive Python session, there was no error. It works fine.

enter image description here

What is a difference between those two ways? What is the best way to execute automation scripts?

I'm using Python 3.6 and pywinauto 0.6.4.

Solution

This is typical timing problem (you can't reproduce it step by step because there is a delay between manual steps execution). roomdlg.Connect.click() waits for existing "Connect" button, but not for enabled state. So the error message is meaningful.

Solution should be:

roomdlg.Connect.wait("enabled") # timeout is optional param, default is 5 sec.
roomdlg.Connect.click()

Some apps may have issues like delayed OnClick() handlers subscription even if button is already enabled. In this case you may need app.wait_cpu_usage_lower() to indicate that app process CPU usage is below threshold.

Current document about timings is here: https://pywinauto.readthedocs.io/en/latest/wait_long_operations.html (need to be extended with global timings settings though).