title: How can i solve ModuleNotFoundError?
body: <p>I am getting this error, while everything is well imported.
  I need some help to identify the source of this error.</p>
  
  <pre><code>  from tta.core.exception import TTAISOTPTimeoutError
  ModuleNotFoundError: No module named 'tta'
  </code></pre>
  
  <p>This error is shown even though the program runs and execute flawless.
  Strange, right?  </p>
  
  <pre><code>from time import sleep
  from tta.core import logger as Logger
  from tta.runner import Runner
  from tta.testcase import AdvancedTestCaseBase
  from tta.testcase.testcase_base import ParameterInt
  from tta.units.relay import Relay
  </code></pre>