Manage Python Scripts

The following example explains how to automatically run a Python code created at runtime and write a file log. It presents activities such as Python Scope and Run Python Script. You can find these activities in the UiPath.Python.Activities package.

Note: Before running any Python workflow, make sure that you have Python3 installed.

This is how the automation process can be built:

1. Open Studio and create a new Process.
2. Drag a Sequence container in the Workflow Designer.

3. Create a new Argument:

   Argument Name	Direction	Argument Type	Default Value
   in_PythonPath	In	String	Add the path of the folder where Python has been installed

4. Drag an If activity inside the Sequence container.

   • Add the expression String.IsNullOrEmpty(in_PythonPath) orelse not Directory.Exists(in_PythonPath) in the Condition field.
5. Drag a Sequence container in the Then field of the If activity.

6. Drag a Message Box activity inside the Sequence container.

   • In the Properties panel, add the expression "Error" in the Caption field.
   • Add the expression "Pyhon Path not configured. Please configure path by setting the argument 'in_PythonPath'." in the Text field.

7. Drag a Terminate Workflow activity after the Message Box activity.

   • In the Properties panel, add the expression "Input Arguments not correct" in the Reason field.

8. Drag a Python Scope activity after the If activity.

   • In the Properties panel, add the argument in_PythonPath in the Path field.
   • Select your Python version from the Version drop-down list (Python_36 in this example).

9. Drag a Run Python Script activity inside the Python Scope container.

   • In the Properties panel, add the following code snippet in the Code field:

     String.Format(
     "import sys" + Environment.NewLine _
     + "import os " + Environment.NewLine _
     + "with open('{0}\logs.txt', 'w') as f: " + Environment.NewLine _
     +     "    f.write('Starting script! \n')" + Environment.NewLine  _
     +     "    f.write('Computing!\n')" + Environment.NewLine _
     +     "    f.write('Finishing script! \n')" + Environment.NewLine, _
     Directory.GetCurrentDirectory.Replace("\", "\\"))

10. Run the process. The automation runs the Python code and writes a log in a file named logs.txt.

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