Use a PyODPS node to reference a third-party package

Reference a common Python script

1. Go to the DataStudio page.
   1. Log on to the DataWorks console.
   2. In the left-side navigation pane, click Workspaces.
   3. In the top navigation bar, select the region where your workspace resides, find the workspace, and then click Data Analytics in the Actions column.
2. Create a Python resource.
   1. On the Data Analytics tab, move the pointer over the icon and choose MaxCompute > Resource > Python.
      Alternatively, you can click the required workflow in the Business Flow section, right-click MaxCompute, and then choose Create > Resource > Python.
   2. In the Create Resource dialog box, set the Resource Name and Location parameters. In this example, the Resource Name parameter is set to pyodps_packagetest.py.
      Notice The resource name can contain letters, digits, periods (.), underscores (_), and hyphens (-) and must end with .py.
   3. Click Create.
   4. On the configuration tab of the newly created Python resource, enter the common Python script that you want to reference. In this example, the following script is used:

      # import os
      # print os.getcwd()
      # print os.path.abspath('.')
      # print os.path.abspath('..')
      # print os.path.abspath(os.curdir)
      
      def printname():
          print 'test2'
      print 123

   5. Click the icon in the top toolbar.
3. Create a PyODPS 2 node.
   1. In the Business Flow section, find the workflow in which you want to create a PyODPS 2 node, right-click MaxCompute, and then choose Create > PyODPS 2.
   2. In the Create Node dialog box, set the Node Name and Location parameters. In this example, the Node Name parameter is set to pyodps_testpackage.
      Note The node name must be 1 to 128 characters in length and can contain letters, digits, underscores (_), and periods (.).
   3. Click Commit.
4. Open the configuration tab of the newly created PyODPS 2 node. Then, right-click the name of the Python resource in the Resource folder of your workflow and select Insert Resource Path.
   After the resource is referenced, the ##@resource_reference{"pyodps_packagetest.py"} statement is automatically written in the code editor of the PyODPS 2 node.
5. Enter the code that is used to reference the common Python script in the code editor of the PyODPS 2 node. In this example, the following code is used:

   ##@resource_reference{"pyodps_packagetest.py"} # This statement is required to reference the created Python resource. 
   
   import sys
   import os
   sys.path.append(os.path.dirname(os.path.abspath('pyodps_packagetest.py'))) # Import the resource to the workspace. 
   import pyodps_packagetest # Reference the resource. You must delete the .py suffix in the resource name. 
   pyodps_packagetest.printname() # Call the method. 

6. Click the icon in the top toolbar and view the results on the Runtime Log tab in the lower part of the configuration tab.
   

Reference a third-party open source package