I have a CSV file in my toolbox folder. I would like to import the CSV file into my arcpy script to run in conjunction with my arcpy script.

Folder structure:

  • src
    • data
      • my_csv.csv
    • mytoolbox.pyt

How would I import the my_csv.csv into the mytoolbox.pyt?

I receive an error when I try running through ArcGIS Pro GUI.: FileNotFoundError: [Errno 2] No such file or directory: ../data/my_csv.csv


    def execute(self, parameters, messages):
        """The source code of the tool."""
        # Open layer and process!!
        arcpy.AddMessage(os.getcwd()) # output is AppData folder for windows
        df_cat_codes = pd.read_csv("../data/my_csv.csv")
        arcpy.AddMessage("CSV shape: ", df_cat_codes.shape)


I am using the template from: https://pro.arcgis.com/en/pro-app/latest/arcpy/geoprocessing_and_python/a-template-for-python-toolboxes.htm

  • Always use os.path to manipulate paths.
    – Vince
    Commented Nov 6, 2023 at 23:13
  • See what __file__ points to (I'm not sure in the case of a *.pyt)
    – mikewatt
    Commented Nov 7, 2023 at 0:50
  • I receive errors What errors? Please include all relevant information in your question.
    – Berend
    Commented Nov 7, 2023 at 10:17
  • Isn't the relative path to the csv just data/my_csv.csv? According to your bullet points, mytoolbox.pyt and data are at the same level. Commented Nov 7, 2023 at 12:10
  • When I check the current location using os.getcwd() (after adding toolbox in Arc Pro), the path join when running in Arc Pro is something like `.\AppData\Local\Temp\ArcGISProTemp82956`
    – Clouseau
    Commented Nov 7, 2023 at 17:06

1 Answer 1




will give you path to toolbox (works with tbx), so join 'data' and scriptsPath to get location of csv file.

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