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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