Using the pyLint parser like this:

recordIssues enabledForFailure: true, tool: pyLint(pattern: 'pylint.log')
 
Results in such NPE:

Error when executing always post condition:
java.lang.NullPointerException
at org.jenkinsci.plugins.structs.SymbolLookup.findDescriptor(SymbolLookup.java:147)
at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:178)
at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:122)
at sun.reflect.GeneratedMethodAccessor607.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
Also, pyLint does not appear in the list of available parsers in the snippet generator.