If you are on linux, you should be linking to the .so, not the dll.
I was building python.net on centos5.5, which has a different set of base apps compared to ubuntu, but here are my experiences...

If you are building python yourself, make sure to build it with the --enable-shared option, so that it generates the .so file for your use with python.net. Also, make sure python is using UCS4 (--enable-unicode=ucs4).

I built python2.6 to /usr/local/python26, so to set up the python2.6 shared object i had to do the following:
Make this file: /etc/ld.so.conf.d/python2.6.conf
With these contents: /usr/local/python26/lib
Run: ldconfig

I build python.net using mono 2.8.1. Since its a later version of mono that python.net was prepped for, i had to tweak some files..:
Further tweaks to build properly:
  1. mod the pynetinit.c file, uncomment: mono_config_parse(NULL);
  2. remove clr.pyd from the all: list of the makefile for python.net
  3. create a symlink to your python.so to your python.net root folder

I think it might be this steps #1, #3 you are missing, or the dllmap is not being found ( Python.Runtime.dll.config ).


cheers,
laszlo


On 30/01/2011 7:55 PM, Tanmoy wrote:
Hi,
    Thanks for your reply. I tried putting in pythononet 26 ... but it did not work...in short i tried 1,2,3.The current SVN too is crashing. Would appreciate if any one could do on Ubuntu versions and report me if they face similar problems.

Sincerely
Tanmoy Mukherjee

On Mon, Jan 31, 2011 at 4:14 AM, Barton <barton@bcdesignswell.com> wrote:
Although I'm on Windows, I may be able to point out a couple of things:
  1. Since the runtime doesn't do any error checking when trying to load the python dynamic (shared) library, this error isn't too weird.
  2. Since the runtime is looking for python26, this is certainly not "pythonnet-1.0-rc2-py2.4-clr1.1" as the link you provided states.
  3. Since the runtime is looking for python26, unless you built from source, this is most likely a Windows build off the pythondotnet project download area on SourcForge.
  4. Since I'm on Windows, I haven't yet tried to build and test under Mono. This may be something that I could try in the unknown-distant-future.
  5. Since I'm the only person currently uploading pre-built assemblies, Linux users must build from source.
AFAIK, the current SVN will build under Mono.
Hope that helps,
Barton


On 1/29/2011 6:30 AM, Tanmoy wrote:
Hi,
    My name is Tanmoy and i have some problems regarding the installation of Python .NET in Ubuntu. whenever i try to follow this (http://mail.python.org/pipermail/pythondotnet/2006-April/000474.html) i get this weird error

Unhandled Exception: System.DllNotFoundException: python26
  at (wrapper managed-to-native) Python.Runtime.Runtime:Py_Initialize ()
  at Python.Runtime.Runtime.Initialize () [0x00000] in <filename unknown>:0
  at Python.Runtime.PythonEngine.Initialize () [0x00000] in <filename unknown>:0
  at Python.Runtime.PythonConsole.Main (System.String[] args) [0x00000] in <filename unknown>:0

Any suggestions where could i be going wrong ?

Sincerely
Tanmoy Mukherjee

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