functools.partial no longer works as a UDF

[chipkent]

A user reported that functools.partial no longer works as a UDF. It works fine in V+ but not Grizzly. It does work fine using a closure.

from functools import partial

 

def py_fn(i:int, z:int):

    return i*5-z

 

def test():

    from deephaven import empty_table

   

    t = empty_table(5).update("col=i*2")

    local_fn = partial(py_fn, z=5)

    t = t.update('col2=local_fn(col)')

   

    return t

 

result = test()

r-Scheduler-Serial-1 | .c.ConsoleServiceGrpcImpl | Error running script: java.lang.RuntimeException: Error in Python interpreter:
Type: <class 'deephaven.dherror.DHError'>
Value: table update operation failed. : Error in Python interpreter
Traceback (most recent call last):
  File "/opt/deephaven/venv/lib/python3.10/site-packages/deephaven/table.py", line 994, in update
    return Table(j_table=self.j_table.update(*formulas))
RuntimeError: io.deephaven.engine.table.impl.select.FormulaCompilationException: Formula compilation error for: local_fn(col)
	at io.deephaven.engine.table.impl.select.DhFormulaColumn.initDef(DhFormulaColumn.java:201)
	at io.deephaven.engine.table.impl.select.SwitchColumn.initDef(SwitchColumn.java:64)
	at io.deephaven.engine.table.impl.select.analyzers.SelectAndViewAnalyzer.createContext(SelectAndViewAnalyzer.java:128)
	at io.deephaven.engine.table.impl.QueryTable.lambda$selectOrUpdate$34(QueryTable.java:1527)
	at io.deephaven.engine.table.impl.perf.QueryPerformanceRecorder.withNugget(QueryPerformanceRecorder.java:369)
	at io.deephaven.engine.table.impl.QueryTable.lambda$selectOrUpdate$35(QueryTable.java:1509)
	at io.deephaven.engine.table.impl.QueryTable.memoizeResult(QueryTable.java:3646)
	at io.deephaven.engine.table.impl.QueryTable.selectOrUpdate(QueryTable.java:1508)
	at io.deephaven.engine.table.impl.QueryTable.update(QueryTable.java:1487)
	at io.deephaven.engine.table.impl.QueryTable.update(QueryTable.java:98)
	at io.deephaven.api.TableOperationsDefaults.update(TableOperationsDefaults.java:94)
	at org.jpy.PyLib.executeCode(Native Method)
	at org.jpy.PyObject.executeCode(PyObject.java:138)
	at io.deephaven.engine.util.PythonEvaluatorJpy.evalScript(PythonEvaluatorJpy.java:73)
	at io.deephaven.integrations.python.PythonDeephavenSession.lambda$evaluate$1(PythonDeephavenSession.java:205)
	at io.deephaven.util.locks.FunctionalLock.doLockedInterruptibly(FunctionalLock.java:51)
	at io.deephaven.integrations.python.PythonDeephavenSession.evaluate(PythonDeephavenSession.java:205)
	at io.deephaven.engine.util.AbstractScriptSession.lambda$evaluateScript$0(AbstractScriptSession.java:165)
	at io.deephaven.engine.context.ExecutionContext.lambda$apply$0(ExecutionContext.java:196)
	at io.deephaven.engine.context.ExecutionContext.apply(ExecutionContext.java:207)
	at io.deephaven.engine.context.ExecutionContext.apply(ExecutionContext.java:195)
	at io.deephaven.engine.util.AbstractScriptSession.evaluateScript(AbstractScriptSession.java:165)
	at io.deephaven.engine.util.DelegatingScriptSession.evaluateScript(DelegatingScriptSession.java:72)
	at io.deephaven.engine.util.ScriptSession.evaluateScript(ScriptSession.java:75)
	at io.deephaven.server.console.ConsoleServiceGrpcImpl.lambda$executeCommand$4(ConsoleServiceGrpcImpl.java:193)
	at io.deephaven.server.session.SessionState$ExportBuilder.lambda$submit$2(SessionState.java:1537)
	at io.deephaven.server.session.SessionState$ExportObject.doExport(SessionState.java:995)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at io.deephaven.server.runner.scheduler.SchedulerModule$ThreadFactory.lambda$newThread$0(SchedulerModule.java:100)
	at java.base/java.lang.Thread.run(Thread.java:1583)
caused by io.deephaven.engine.table.impl.lang.QueryLanguageParser$QueryLanguageParseException: 

Having trouble with the following expression:
Full expression           : local_fn(col)
Expression having trouble : local_fn.call(col)
Exception type            : java.lang.RuntimeException
Exception message         : Error in Python interpreter:
Type: <class 'AttributeError'>
Value: 'functools.partial' object has no attribute '__name__'
Line: <not available>
Namespace: <not available>
File: <not available>
Traceback (most recent call last):


	at org.jpy.PyLib.getAttributeObject(Native Method)
	at org.jpy.PyObject.getAttribute(PyObject.java:340)
	at io.deephaven.engine.util.PyCallableWrapperJpyImpl.verifyArguments(PyCallableWrapperJpyImpl.java:290)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.verifyPyCallableArguments(QueryLanguageParser.java:2531)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.visit(QueryLanguageParser.java:2503)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.visit(QueryLanguageParser.java:133)
	at com.github.javaparser.ast.expr.MethodCallExpr.accept(MethodCallExpr.java:116)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.visit(QueryLanguageParser.java:2422)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.visit(QueryLanguageParser.java:133)
	at com.github.javaparser.ast.expr.MethodCallExpr.accept(MethodCallExpr.java:116)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.<init>(QueryLanguageParser.java:319)
	at io.deephaven.engine.table.impl.lang.QueryLanguageParser.<init>(QueryLanguageParser.java:212)
	at io.deephaven.engine.table.impl.select.codegen.FormulaAnalyzer.parseFormula(FormulaAnalyzer.java:240)
	at io.deephaven.engine.table.impl.select.codegen.FormulaAnalyzer.parseFormula(FormulaAnalyzer.java:122)
	at io.deephaven.engine.table.impl.select.DhFormulaColumn.initDef(DhFormulaColumn.java:181)
	... 32 more


Line: 996
Namespace: update
File: /opt/deephaven/venv/lib/python3.10/site-packages/deephaven/table.py
Traceback (most recent call last):
  File "<string>", line 29, in <module>
  File "<string>", line 21, in test
  File "/opt/deephaven/venv/lib/python3.10/site-packages/deephaven/table.py", line 996, in update

	at org.jpy.PyLib.executeCode(Native Method)
	at org.jpy.PyObject.executeCode(PyObject.java:138)
	at io.deephaven.engine.util.PythonEvaluatorJpy.evalScript(PythonEvaluatorJpy.java:73)
	at io.deephaven.integrations.python.PythonDeephavenSession.lambda$evaluate$1(PythonDeephavenSession.java:205)
	at io.deephaven.util.locks.FunctionalLock.doLockedInterruptibly(FunctionalLock.java:51)
	at io.deephaven.integrations.python.PythonDeephavenSession.evaluate(PythonDeephavenSession.java:205)
	at io.deephaven.engine.util.AbstractScriptSession.lambda$evaluateScript$0(AbstractScriptSession.java:165)
	at io.deephaven.engine.context.ExecutionContext.lambda$apply$0(ExecutionContext.java:196)
	at io.deephaven.engine.context.ExecutionContext.apply(ExecutionContext.java:207)
	at io.deephaven.engine.context.ExecutionContext.apply(ExecutionContext.java:195)
	at io.deephaven.engine.util.AbstractScriptSession.evaluateScript(AbstractScriptSession.java:165)
	at io.deephaven.engine.util.DelegatingScriptSession.evaluateScript(DelegatingScriptSession.java:72)
	at io.deephaven.engine.util.ScriptSession.evaluateScript(ScriptSession.java:75)
	at io.deephaven.server.console.ConsoleServiceGrpcImpl.lambda$executeCommand$4(ConsoleServiceGrpcImpl.java:193)
	at io.deephaven.server.session.SessionState$ExportBuilder.lambda$submit$2(SessionState.java:1537)
	at io.deephaven.server.session.SessionState$ExportObject.doExport(SessionState.java:995)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at io.deephaven.server.runner.scheduler.SchedulerModule$ThreadFactory.lambda$newThread$0(SchedulerModule.java:100)
	at java.base/java.lang.Thread.run(Thread.java:1583)