public static void Display(object value)
{
if (value != null)
{
if (Evaluation.sbPrint != null && Evaluation.sbPrint.Length > 0)
{
kernel.SendDisplayData("text/plain", Evaluation.sbPrint.ToString());
Evaluation.sbPrint.Clear();
}
BinaryOutput output = Printers.PrintVariable(value);
kernel.SendDisplayData(output.ContentType, output.Data);
}
}
internal void executeRequest(KernelMessage msg, ExecuteRequest content)
{
Evaluation.sbOut.Clear();
Evaluation.sbErr.Clear();
Evaluation.sbPrint.Clear();
payload.Clear();
if (!content.silent)
{
executionCount++;
}
// sending busy
sendStateBusy(msg);
sendMessage(ioSocket, msg, "pyin", new Pyin()
{
code = content.code, execution_count = executionCount
});
// preprocess
var newCode = preprocessCode(content.code);
if (!String.IsNullOrEmpty(newCode))
{
// evaluate
try
{
(var value, var errors) = Evaluation.EvalInteractionNonThrowing(newCode);
if (errors.Length > 0)
{
var sb = errors.Aggregate(new StringBuilder(), (ag, n) => ag.AppendLine(n));
sendError(sb.ToString(), msg);
}
var executeReply = new ExecuteReplyOk()
{
status = "ok",
execution_count = executionCount,
payload = payload.ToArray(),
user_variables = new Dictionary <string, object>(),
user_expressions = new Dictionary <string, object>()
};
sendMessage(shellSocket, msg, "execute_reply", executeReply);
// send all the data
if (!content.silent)
{
var lastExpression = Evaluation.GetLastExpression();
if (lastExpression != null)
{
var printedResult = Printers.PrintVariable(lastExpression);
sendDisplayData(printedResult.ContentType, printedResult.Data, "pyout");
}
}
}
catch (AggregateException ae)
{
var esb = new StringBuilder();
esb.AppendLine(ae.Message);
foreach (var e in ae.InnerExceptions)
{
esb.AppendLine(e.Message);
}
sendError(esb.ToString(), msg);
}
catch (Exception ex)
{
var error = $"Expression evaluation failed: {ex.Message}\r\n {ex.StackTrace}";
sendError(error, msg);
}
}
if (Evaluation.sbPrint.Length > 0)
{
sendDisplayData("text/plain", Evaluation.sbPrint.ToString(), "display_data");
}
sendStateIdle(msg);
}