Error in Python interpreter: Type: <class 'SyntaxError'> Value: EOL while scanning string literal (<string>, line 1) Line: <not available> Namespace: <not available> File: <not available>

[Klodovsky]

I've been trying to run jpy on a Coldfusion server which is written in Java, at first the server just kept crashing whenever I run PyLib.startPython([]); , I kept trying and I think it worked since PyLib.isPythonRunning()switched from NO to YES.

In the other hand I'm getting a Python interpreter SyntaxError which could be a bug :

here's the stacktrace :

java.lang.RuntimeException: Error in Python interpreter: Type: <class 'SyntaxError'> Value: EOL while scanning string literal (, line 1) Line: Namespace: File: at org.jpy.PyLib.executeCode(Native Method) at org.jpy.PyObject.executeCode(PyObject.java:88) at org.jpy.PyObject.executeCode(PyObject.java:59) at jdk.internal.reflect.GeneratedMethodAccessor116.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at coldfusion.runtime.java.JavaProxy.invoke(JavaProxy.java:106) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:4239) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:4202) at cftest22ecfm1709273233.runPage(/opt/ColdFusion2021/cfusion/wwwroot/test2.cfm:40) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:605) at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43) at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40) at coldfusion.filter.PathFilter.invoke(PathFilter.java:162) at coldfusion.filter.IpFilter.invoke(IpFilter.java:45) at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:30) at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:97) at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:81) at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28) at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38) at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:60) at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38) at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22) at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62) at coldfusion.CfmServlet.service(CfmServlet.java:232) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:46) at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at coldfusion.inspect.weinre.MobileDeviceDomInspectionFilter.doFilter(MobileDeviceDomInspectionFilter.java:57) at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:834)

And the Coldfusion code :

<cfobject action=create type=java class=org.jpy.PyInputMode name=JpyPyInputMode> 
<cfobject action=create type=java class=org.jpy.PyLib name=JpyPyLib> 
<cfobject action=create type=java class=org.jpy.PyObject  name=JpyPyObject>

<cfobject action=create type=java class=java.io.FileInputStream  name=JavaFileInputStream>
<cfobject action=create type=java class=java.io.IOException name=JavaIOException>
<cfobject action=create type=java class=java.lang.System  name=JavaSystem>
<cfobject action=create type=java class=java.util.Properties  name=p>

<cfscript>
props = createObject("java","java.util.Properties");
inputStream = createObject("java","java.io.FileInputStream").init(expandPath("jpyconfig.properties"));
props.load(inputStream);
propertyKey1="jpy.pythonExecutable";
propertyValue1="/usr/bin/python3";
propertyKey2="jpy.pythonLib";
propertyValue2="/usr/lib/x86_64-linux-gnu/libpython3.8.so";
propertyKey3="jpy.jdlLib";
propertyValue3="/usr/local/lib/python3.8/dist-packages/jdl.cpython-38-x86_64-linux-gnu.so";
propertyKey4="jpy.jpyLib";
propertyValue4="/usr/local/lib/python3.8/dist-packages/jpy.cpython-38-x86_64-linux-gnu.so";
propertyKey5="jpy.pythonPrefix";
propertyValue5="/usr";

JavaSys=createObject("java","java.lang.System");
JavaSys.setProperty(propertyKey1,propertyValue1);
JavaSys.setProperty(propertyKey2,propertyValue2);
JavaSys.setProperty(propertyKey3,propertyValue3);
JavaSys.setProperty(propertyKey4,propertyValue4);
JavaSys.setProperty(propertyKey5,propertyValue5);

JpyPyLib.startPython([]);
writeDump(JpyPyLib.isPythonRunning());
writeDump(JpyPyLib.getPythonVersion());
JpyPyObject.executeCode("print('Hello from python \')", JpyPyInputMode.SCRIPT);
JpyPyObject.executeCode("print('Exemple Pandas : \')", JpyPyInputMode.SCRIPT);
JpyPyObject.executeCode("import sys,pandas as pd", JpyPyInputMode.SCRIPT);
//JpyPyObject.executeCode("pays = {\"region\": [\"Paris\", \"Grenoble\"]}", JpyPyInputMode.SCRIPT);
//JpyPyObject.executeCode("tab = pd.DataFrame(pays)", JpyPyInputMode.SCRIPT);
JpyPyObject.executeCode("print(sys.version)", JpyPyInputMode.SCRIPT);

</cfscript>

PS: createObject is Coldfusion's way of importing libraries/objects ( similar to import in java).

[Klodovsky]

output :