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Alexmak85's avatar
Alexmak85
Occasional Contributor
8 years ago

Python: fail to import lib during the second attempt to run script

Test Complete 12.3 Python 3.6   Trying to import win32com.client First run is ok. Second run: import failed with 'NoneType' object is not callable.   After restart Test Complete the same resul...
Alexmak85's avatar
Alexmak85
Occasional Contributor
8 years ago
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What i found about win32 api for Python.  It turned out that win32com.client couldn't be imported more than once within the same process. Sorry, this is a limitation of the PyGILState API used by pywin32; pywin32 will never be able to play with the multiple interpreter API, nor work correctly with multiple interpreter initializations and cleanups. But such problem occurs with another libraries. For example, with lxml. Second import cause Test Complete crash :)
baxatob's avatar
baxatob
Community Hero
8 years ago
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Hi,

 

 

TestComplete has its own Python interpreter and you do not need to install another one, especially you should not install new  interpreter into the TestComplete directory, because it can override important dependencies and cause conflicts.

 

  • Alexmak85's avatar
    Alexmak85
    Occasional Contributor
    8 years ago
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    But to install third party Python libs we need full Python with pip, or we're not?
    • baxatob's avatar
      baxatob
      Community Hero
      8 years ago
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      You can download any required package manually and then install it using setup.py script.

      Also you can install pip itself to work with your TestComplete Python installation. 

       

      Spoiler
      NB! For the some reason SmartBear does not include pip installer by default. So you will do it on your own risk.

       

      https://packaging.python.org/tutorials/installing-packages/