[Bug] Python 3.12 and 3.11 do not produce the same report

[d0b3rm4n]

What happened?

The following example:

# robocop: disable=missing-doc-suite,missing-doc-test-case
*** Test Cases ***
Test Unused Var         
    ${used_var}    Set Variable    foo
    IF    $used_var == "foo"
        Log    "Is foo"
    ELSE
        Fail    "Is not foo"
    END

Reports under Python 3.12.0:

ugreport.robot:4:5 [I] 0920 Variable '${used_var}' is assigned but not used (unused-variable)

Under Python 3.11.4 this is not reported.

Not sure but it might be related to the changes mentioned in robotframework/robotframework#4771 and python/cpython#104802.

What command/code did you try to run?

Robotframework versions

pip list |grep robo
robotframework          6.1.1
robotframework-requests 0.9.5
robotframework-robocop  4.1.1

Python Versions:

python --version
Python 3.12.0

Robocop command:

robocop --reports all bugreport.robot
bugreport.robot:4:5 [I] 0920 Variable '${used_var}' is assigned but not used (unused-variable)

Processed 1 file from which 1 file contained issues.

Found 1 issue: 1 INFO.

Report generated by Robocop version: 4.1.1

Issues by ID:
I0920 (unused-variable) : 1

Scan finished in 0.006s.

Reported: 2023-10-09 16:44:51 +0300

Robot command:

robot bugreport.robot
==============================================================================
Bugreport                                                                     
==============================================================================
Test Unused Var                                                       | PASS |
------------------------------------------------------------------------------
Bugreport                                                             | PASS |
1 test, 1 passed, 0 failed
==============================================================================
Output:  ./output.xml
Log:     ./log.html
Report:  ./report.html

What is the full error message?

bugreport.robot:4:5 [I] 0920 Variable '${used_var}' is assigned but not used (unused-variable)

What did you expect to happen instead?

I expect it to not report anything like with Python 3.11.x

Robotframework versions

pip list | grep robot
robotframework         6.1.1
robotframework-robocop 4.1.1

Python Versions:

python --version
Python 3.11.4

Robocop command:

robocop --reports all bugreport.robot 

Processed 1 file but no issues were found.

Found 0 issues.

Report generated by Robocop version: 4.1.1

Issues by ID:
No issues found.

Scan finished in 0.007s.

Reported: 2023-10-09 16:48:36 +0300

Robot command:

robot bugreport.robot
==============================================================================
Bugreport                                                                     
==============================================================================
Test Unused Var                                                       | PASS |
------------------------------------------------------------------------------
Bugreport                                                             | PASS |
1 test, 1 passed, 0 failed
==============================================================================
Output:  ./output.xml
Log:    ./log.html
Report:  ./report.html

Operating System

Linux

Robocop version

4.1.1

[bhirsz]

Thanks for the report. It indeed looks connected to the linked issue from the RF.

Edited - I was under wrong impression since we fully implemented it on our side, we just have the same bug as Robot Framework had. I will fix it.

[bhirsz]

We should add Python 3.12 to our CI/CD, thanks for the reminder.

[bhirsz]

Released in 4.2.0

[d0b3rm4n]

thx, I can confirm 4.2.0 works with Python 3.12. The issues it reported in our code are not reported any longer.