Error during attempted parameter scan

[Terry Pilkington]

Hi,
 I am trying to use the latest version (from maddm_v1.0_MG2.0_compatible.tar) with MG5 v2.1.2 (on Mac OSX 10.8.5 with Python 2.7.7 :: Anaconda 2.0.1 (x86_64)), but after editing the parameter scan file, I get the following error:

=============================================================================

Enter the name of your parameter scan: scan_noco
Traceback (most recent call last):
  File "./scan_noco", line 20, in <module>
    dm = pickle.load(f)
  File "/anaconda/lib/python2.7/pickle.py", line 1378, in load
    return Unpickler(file).load()
  File "/anaconda/lib/python2.7/pickle.py", line 858, in load
    dispatch[key](self)
  File "/anaconda/lib/python2.7/pickle.py", line 1215, in load_build
    setstate = getattr(inst, "__setstate__", None)
  File "/Users/terryp/work/mgmdm/madgraph/various/banner.py", line 1123, in __getattr__
    return self.info[tag]

 (and then the line with banner.py is repeated a few hundred times until...)

RuntimeError: maximum recursion depth exceeded in __instancecheck__

=============================================================================

If I instead use the same version of MDM with MG5 v1.5.14, before getting to the parameter scan, I get:

=============================================================================

------ Generating Diagrams ------
 Done!
------ Creating the Numerical Session ------
project path: Projects/Z2n6_noco_Z0R
/Users/terryp/work/mg15dm
Projects/Z2n6_noco_Z0R
Initializing project directory: Z2n6_noco_Z0R
/Users/terryp/work/mg15dm/Template/LO/Source/make_opts
Traceback (most recent call last):
  File "./maddm.py", line 27, in <module>
    dm.CreateNumericalSession()
  File "/Users/terryp/work/mg15dm/maddm/darkmatter.py", line 671, in CreateNumericalSession
    self._exporter.copy_template(self._projectpath)
  File "/Users/terryp/work/mg15dm/maddm/MGoutput.py", line 105, in copy_template
    os.path.join(self.dir_path, 'Source'))
  File "/anaconda/lib/python2.7/shutil.py", line 119, in copy
    copyfile(src, dst)
  File "/anaconda/lib/python2.7/shutil.py", line 82, in copyfile
    with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory: '/Users/terryp/work/mg15dm/Template/LO/Source/make_opts'

=============================================================================

Is there a way to get an older (non-MG5 v2) version of MDM?

Thanks for any help!
Terry

[Terry Pilkington (tpilking)]

I have also tried using the default Python installation (2.7.2), but I get the same errors.

[Mihailo Backovic (mbackovic)]

Hi Terry,

Thanks for bringing this to our attention. I have tried with the newest version of MadGraph as well and I confirm the same error messages. Have you tried running with version 2.1.0 of MG_aMC@NLO? This one should work in the mean time while I investigate what is causing the bug in the later versions.

Best,

Mihailo