After Update to RF 4.1.2 startied getting "FAIL - RecursionError: maximum recursion depth exceeded"

Robot Framework
1

After Updating robot test suite to RF 4.1.2 started getting “FAIL - RecursionError: maximum recursion depth exceeded”
this crashes robot .

I understand increasing the limit of recursion is one of the suggested solution.
Is there a way to find which keywords calling is causing maximum recursion count.
Given problematic keyword is found I can optimise it to use iteration instead of recursion

 File "/usr/local/lib/python3.6/site-packages/robot/libraries/BuiltIn.py", line 1870, in run_keyword
    return kw.run(self._context)
  File "/usr/local/lib/python3.6/site-packages/robot/running/model.py", line 78, in run
    return KeywordRunner(context, run).run(self)
  File "/usr/local/lib/python3.6/site-packages/robot/running/bodyrunner.py", line 65, in run
    return runner.run(step, context, self._run)
  File "/usr/local/lib/python3.6/site-packages/robot/running/librarykeywordrunner.py", line 51, in run
    with StatusReporter(kw, result, context, run):
  File "/usr/local/lib/python3.6/site-packages/robot/running/statusreporter.py", line 41, in __enter__
    context.start_keyword(ModelCombiner(self.data, result))
  File "/usr/local/lib/python3.6/site-packages/robot/running/context.py", line 187, in start_keyword
    self.output.start_keyword(keyword)
  File "/usr/local/lib/python3.6/site-packages/robot/output/output.py", line 63, in start_keyword
    LOGGER.start_keyword(kw)
  File "/usr/local/lib/python3.6/site-packages/robot/output/logger.py", line 221, in start_keyword
    logger.start_keyword(keyword)
  File "/usr/local/lib/python3.6/site-packages/robot/output/logger.py", line 272, in start_keyword
    method(kw)
  File "/usr/local/lib/python3.6/site-packages/robot/output/logger.py", line 272, in start_keyword
    method(kw)
  File "/usr/local/lib/python3.6/site-packages/robot/output/logger.py", line 272, in start_keyword
    method(kw)
  [Previous line repeated 909 more times]
  File "/usr/local/lib/python3.6/site-packages/robot/output/xmllogger.py", line 74, in start_keyword
    self._write_list('arg', [unic(a) for a in kw.args])
  File "/usr/local/lib/python3.6/site-packages/robot/output/xmllogger.py", line 182, in _write_list
    self._writer.element(tag, item)
  File "/usr/local/lib/python3.6/site-packages/robot/utils/markupwriters.py", line 103, in element
    _MarkupWriter.element(self, name, content, attrs, escape, newline)
  File "/usr/local/lib/python3.6/site-packages/robot/utils/markupwriters.py", line 71, in element
    self.content(content, escape)
  File "/usr/local/lib/python3.6/site-packages/robot/utils/markupwriters.py", line 59, in content
    self._write(self._escape(content) if escape else content, newline)
  File "/usr/local/lib/python3.6/site-packages/robot/utils/markupwriters.py", line 99, in _escape
    return xml_escape(text)
  File "/usr/local/lib/python3.6/site-packages/robot/utils/markuputils.py", line 37, in xml_escape
    return _illegal_chars_in_xml.sub('', _escape(text))
2

It can not changed from outside, it is hard coded somewhere in the Robot Framework code. The better way would be to remove the recursion.

3

Removal of recursion seems to be needed in logger.py library in [11:37] Vikramjeet Singh
def start_keyword(self, keyword):

TODO: Could _prev_log_message_handlers be used also here?

self._started_keywords += 1
self.log_message = self._log_message
for logger in self.start_loggers:
logger.start_keyword(keyword) def end_keyword(self, keyword):
self._started_keywords -= 1
for logger in self.end_loggers:
logger.end_keyword(keyword)
if not self._started_keywords:
self.log_message = self.message

Is there a chance that as our code is still using "Run Keyword If " a lot and not yet migrating to IF/ELSE IF/ELSE cause of the issue ?

4

It’s strange that only updating RF caused this. What version did you use earlier? Is it possible for you to create a simple example demonstrating the problem? If it is, please submit an issue and include the example into it.

5

Only change done in code is updating the RF from version 3.2.2 to 4.1.2.
While I am still looking into what’s causing the issue another similar crash error when executing different set of tests:

6

Could test how RF 4.0 works?

7

Okay…will try rf4.0.