R function not sourcing from python using pyrserve

[jediinsights]

I have a function initSession which is sourced in Rserv.conf when Rserve starts:

    # Function to source session init file. Python calls this for initializing a session.

    initSession <- function(){

    print(file.InitSession) # this works

    source(file.InitSession)

    }

Within file.InitSession (a .R file) I have a bunch of steps:

    # these are the sample contents of file.InitSession

    print("In init Session script.") ### THIS DOES NOT WORK. DOES NOT PRINT!!

    

    module = "init_session"

    assign("PID__", PROCESSID__, envir = .GlobalEnv) #PROCESSID__ is var created in R using pyrserve

    # and other statements

In python it spits out this error:

    Traceback (most recent call last):

      File "/opt/insightjedi/django-code/Statistics/rConnectors.py", line 53, in init_R_Session

        self.rConnection.eval("initSession()")  ## ----- added line

      File "/usr/local/lib/python2.7/dist-packages/pyRserve/rconn.py", line 37, in decoCheckIfClosed

        return func(self, *args, **kw)

      File "/usr/local/lib/python2.7/dist-packages/pyRserve/rconn.py", line 103, in eval

        return rparse(src, atomicArray=atomicArray)

      File "/usr/local/lib/python2.7/dist-packages/pyRserve/rparser.py", line 469, in rparse

        return rparser.parse()

      File "/usr/local/lib/python2.7/dist-packages/pyRserve/rparser.py", line 304, in parse

        self.lexer.readHeader()

      File "/usr/local/lib/python2.7/dist-packages/pyRserve/rparser.py", line 83, in readHeader

        self.responseCode = struct.unpack(b'<i', self.read(3) + b'\x00')[0]

      File "/usr/local/lib/python2.7/dist-packages/pyRserve/rparser.py", line 128, in read

        raise EndOfDataError()

    EndOfDataError

Any idea why this happens? I have all directories set at full access. (777)

    > R.Version()

    $platform

    [1] "x86_64-apple-darwin9.8.0"

    

    $arch

    [1] "x86_64"

    

    $os

    [1] "darwin9.8.0"

    

    $system

    [1] "x86_64, darwin9.8.0"

    

    $status

    [1] ""

    

    $major

    [1] "2"

    

    $minor

    [1] "15.2"

    

    $year

    [1] "2012"

    

    $month

    [1] "10"

    

    $day

    [1] "26"

    

    $`svn rev`

    [1] "61015"

    

    $language

    [1] "R"

    

    $version.string

    [1] "R version 2.15.2 (2012-10-26)"

    

    $nickname

    [1] "Trick or Treat"

pyRserve version 0.7.1

And I really hope someone creates a pyRserve tag with reputation>1500. I cant and my guess is questions get all routed to as python questions. Even if you have to copy and paste my question, that is fine.

[Ralph Heinkel]

Hi jediinsights,

I'm trying to reproduce your problem. For me it seems to work fine, but I'm not sure about your exact setup. Can you send me a minimalistic R file which is sourced at Rserve startup (including the Rserv.conf entry), and a minimalistic R file which is then sourced by Python and then causes your problems?

Ralph

[jediinsights]

Hi Ralph:

I will post details about how to reproduce the problem shortly.

Thanks,

Dipayan