psycopg2 failes when used from TestComplete but not when from TCs Python directly

There is a Python script that reads from Postgres db.

Notice that I am running it with the TestComplete's own Python. Where the psycopg2 library was added by me.
```
/c/Program\ Files\ \(x86\)/SmartBear/TestComplete\ 15/x64/Bin/Extensions/Python/Python310/python.exe pg_utils.py

```
It has couple of prints that reveals sys.prefix and sys.path
```
sys.prefix: C:\Program Files (x86)\SmartBear\TestComplete 15\x64\Bin\Extensions\Python\Python310

sys.path: [
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\Lib\\site-packages',
'C:\\Tests\\TestComplete\\lib\\postgres',
C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\python310.zip',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\DLLs',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib\\site-packages',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib\\site-packages\\tzdata-2023.3-py3.10.egg',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib\\site-packages\\typing_extensions-4.8.0-py3.10.egg'

```

And script works fine
Connecting to the PostgreSQL database...
['postgres', ...]

BUT: When I try to run it from TestComplete's UI

I got the following output:

```

sys.prefix: C:\Program Files (x86)\SmartBear\TestComplete 15\x64\Bin\Extensions\Python\Python310
sys.path: [
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\Lib\\site-packages',
'C:\\Tests\\TestComplete\\lib\\postgres',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\python310.zip',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\DLLs',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib\\site-packages',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib\\site-packages\\tzdata-2023.3-py3.10.egg',
'C:\\Program Files (x86)\\SmartBear\\TestComplete 15\\x64\\Bin\\Extensions\\Python\\Python310\\lib\\site-packages\\typing_extensions-4.8.0-py3.10.egg'
]

ImportError: cannot import name 'encodings' from 'psycopg2._psycopg' (C:\Program Files (x86)\SmartBear\TestComplete 15\x64\Bin\Extensions\Python\Python310\Lib\site-packages\psycopg2\_psycopg.cp310-win_amd64.pyd)
```
sys.prefix is obviously the same and I have manually copied sys.path to be exactly the same as if I run it directly from Python.

Question: Why it can't import something if it is using same Python.exe and has same sys.path. Is TestComplete forcing script to use some other path, and how can I Debug it.

Thank you!

UPDATE:

It turns out that the error doesn't pop up if I restart TestComplete and run my test for the first time.

If I run something else beforehand or if I try to rerun the test - script produces the error.

I found similar issue [here](https://community.smartbear.com/t5/TestComplete-Questions/Python-fail-to-import-lib-during-the-second-attempt-to-run/td-p/153683) it was not solved but win32com was pointed to be the root cause.

I am importing psycopg2 and using x64 Python. Can I be affected by the same issue. Any meaningful ideas how to figure it out are welcome