toInt error in tag event script

I have a tag event, value change script that has a bit of code in it to jump in a sequence. It was working just fine, but then I noticed it was also jumping backward if we had an incomplete step prior in the sequence. To solve this I am trying to do a comparison and its causing some error in trying to compare the stepNum to the number extracted from the column name in the table headers.

for col in range(len(headers)):
    work=dta.getValueAt(0, col)
    if col > 0:
        if work != 3:
            gotoStep = col
            head = headers[gotoStep]
            head2 = head[4:]
            headInt = toInt("33.9")
            if headInt > step:
                system.tag.write("[.]jumpToStepNum",head2)
                system.tag.write("[.]jumpToStep",1)
                system.tag.write("[.]doneScan", 0)

The script was working error free until I added one line “headInt = toInt(head2)”, which was modified to a fixed number in the Ignition example from the manual. The next line was modified from head2 > step to “headInt > step”.

The error is :
NameError: global name ‘toInt’ is not defined
INFO | jvm 1 | 2017/05/22 13:18:26 |
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.Py.NameError(Py.java:260)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyFrame.getglobal(PyFrame.java:265)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.pycode.pyx3981.valueChanged$1(tagevent:valueChanged:24)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.pycode.pyx3981.call_function(tagevent:valueChanged)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyTableCode.call(PyTableCode.java:165)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyBaseCode.call(PyBaseCode.java:301)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyFunction.function___call
(PyFunction.java:376)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyFunction.call(PyFunction.java:371)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyFunction.call(PyFunction.java:361)
INFO | jvm 1 | 2017/05/22 13:18:26 | at org.python.core.PyFunction.call(PyFunction.java:356)
INFO | jvm 1 | 2017/05/22 13:18:26 | at com.inductiveautomation.ignition.common.script.ScriptManager.runFunction(ScriptManager.java:663)
INFO | jvm 1 | 2017/05/22 13:18:26 | at com.inductiveautomation.ignition.common.sqltags.scripts.TagScriptManager$FunctionInvokerImpl.run(TagScriptManager.java:414)
INFO | jvm 1 | 2017/05/22 13:18:26 | at com.inductiveautomation.ignition.common.sqltags.scripts.AbstractTagScript.invoke(AbstractTagScript.java:34)
INFO | jvm 1 | 2017/05/22 13:18:26 | at com.inductiveautomation.ignition.common.sqltags.scripts.TagScriptManager$Task.invoke(TagScriptManager.java:353)
INFO | jvm 1 | 2017/05/22 13:18:26 | at com.inductiveautomation.ignition.common.sqltags.scripts.TagScriptManager$TagScriptDispatcher.run(TagScriptManager.java:318)
INFO | jvm 1 | 2017/05/22 13:18:26 | at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:546)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.util.concurrent.FutureTask.run(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | at java.lang.Thread.run(Unknown Source)
INFO | jvm 1 | 2017/05/22 13:18:26 | Caused by: org.python.core.PyException: Traceback (most recent call last):

toInt is a function in the expression language. Try int(foo) in python.

doh. Another Bart Simpson moment. Thanks for the assistance. Should have been obvious, but seems most of my script errors are from using the wrong one at the wrong location.