Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The ultimate Microsoft Fabric, Power BI, Azure AI & SQL learning event! Join us in Las Vegas from March 26-28, 2024. Use code MSCUST for a $100 discount. Register Now

Reply
davfra
Regular Visitor

Data retrieval with a Python script using dynamically generated paths.

Hello, everybody,


I have a problem accessing data with a Python script. The script does not find my dynamically generated path.

I want to read data from a JSON file located in the same folder as my Python script and my pbix file.

Because I don't know the parent folder structure, I want to dynamically create the absolute path to my JSON file in the Python script.

I use the following commands to do this:

#get absolute path from filename
from pathlib import Path
my_path = Path('myfile.json').absolute()

#Open the JSON file
        with open(my_path, encoding='utf-8') as file:
            json_data = json.load(file)
        return json_data['items']

However, I get the following error message during data retrieval.

Details: "ADO.NET: Þγţнόņ šċŗΐþŧ έґяθŗ.
Traceback (most recent call last):
  File "PythonScriptWrapper.PY", line 207, in <modules>
    etl.main()
  File "PythonScriptWrapper.PY", line 42, in main
    json_data = self.read_json_file()
  File "PythonScriptWrapper.PY", line 61, in read_json_file
    with open(str(self.source_path), encoding='utf-8') as file:
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\Frank\\\PythonScriptWrapper_2c44fb75-27ca-4cf5-bfba-3a5035f935de\myfile.json

Strange is now: If I save the identical path as string in a variable to test it, the data retrieval works (my_path= 'C:\Users\\Frank\\\Desktop\\myfile.json').

However, as soon as I use the dynamically generated path, the data retrieval fails, even though the paths are completely identical.

Does anyone have a solution to my problem?

Thank you very much for your help.

Regards,

Frank

1 ACCEPTED SOLUTION
v-chuncz-msft
Community Support
Community Support

@davfra,

 

This seems to be a limitation.

https://docs.microsoft.com/en-us/power-bi/desktop-python-scripts#prepare-a-python-script

Community Support Team _ Sam Zha
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

1 REPLY 1
v-chuncz-msft
Community Support
Community Support

@davfra,

 

This seems to be a limitation.

https://docs.microsoft.com/en-us/power-bi/desktop-python-scripts#prepare-a-python-script

Community Support Team _ Sam Zha
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Helpful resources

Announcements
Fabric Community Conference

Microsoft Fabric Community Conference

Join us at our first-ever Microsoft Fabric Community Conference, March 26-28, 2024 in Las Vegas with 100+ sessions by community experts and Microsoft engineering.

February 2024 Update Carousel

Power BI Monthly Update - February 2024

Check out the February 2024 Power BI update to learn about new features.

Fabric Career Hub

Microsoft Fabric Career Hub

Explore career paths and learn resources in Fabric.

Fabric Partner Community

Microsoft Fabric Partner Community

Engage with the Fabric engineering team, hear of product updates, business opportunities, and resources in the Fabric Partner Community.

Top Solution Authors