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Anonymous
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Python script error in Power Query Editor PythonUnexpectedException

Hello, 

I'm working on a Power BI report. I have multiple queries in the Power Query Editor including Python scripts. Suddenly some scripts that did work previously, now give the following error: 

 

DataSource.Error: ADO.NET: A problem occurred while processing your Python script.
Here are the technical details: [Expression.Error] We cannot return a value of type Table in this context.
Details:
DataSourceKind=Python
DataSourcePath=Python
Message=A problem occurred while processing your Python script.
Here are the technical details: [Expression.Error] We cannot return a value of type Table in this context.
ErrorCode=-2147467259
ExceptionType=Microsoft.PowerBI.Scripting.Python.Exceptions.PythonUnexpectedException

 

Other scripts still work fine. The same simple Python script that works in some queries, does not work for other queries. Any ideas what could be the cause for this, and how to fix it?

My python version is 3.7 (64-bit), and my Microsoft Power BI Desktop version is 2.70.5494.562 64-bit (June 2019).

 

Thanks for your help!
 
Rianne

1 ACCEPTED SOLUTION

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Community Support
Community Support

Re: Python script error in Power Query Editor PythonUnexpectedException

Hi @Anonymous ,

 

From the Data Source Settings dialog, select the data source(s) and then select Edit Permissions... and ensure that the Privacy Level is set to Public.

 

 

Community Support Team _ Frank
If this post helps, then please consider Accept it as the solution to help the others find it more quickly.

View solution in original post

4 REPLIES 4
Highlighted
Community Support
Community Support

Re: Python script error in Power Query Editor PythonUnexpectedException

Hi @Anonymous ,

 

From the Data Source Settings dialog, select the data source(s) and then select Edit Permissions... and ensure that the Privacy Level is set to Public.

 

 

Community Support Team _ Frank
If this post helps, then please consider Accept it as the solution to help the others find it more quickly.

View solution in original post

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Anonymous
Not applicable

Re: Python script error in Power Query Editor PythonUnexpectedException

That works, thanks a lot!

Highlighted
New Member

Re: Python script error in Power Query Editor PythonUnexpectedException

Hi All, unfortunately i have the same problem since installing the June 2019 Power BI  update and changing the data source's privacy level to public did not fix the problem.   I appreciate any additional support anyone has on this issue. 

Highlighted
Helper II
Helper II

Re: Python script error in Power Query Editor PythonUnexpectedException

I met this same problem but can fix by solution here.

my code:

import re
hours_lst = []
for s in zip(dataset['timeSpent']):
    p = re.compile("(?P<day>\d+d)?\s*(?P<hour>\d+h)?\s*(?P<minute>\d+m)?")
    m = re.search(p, str(s))
    day = m.group('day') 
    day = re.findall("\d+", day)[0] if day else 0
    hour = m.group('hour')
    hour = re.findall("\d+", hour)[0] if hour else 0
    minute = m.group('minute')
    minute = re.findall("\d+", minute)[0] if minute else 0
    hours = 8*int(day) + int(hour) + float(minute)/60
    hours_lst.append(0)                    
dataset['hours'] = hours_lst

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