Loading model files fails (h5py version ≥ 3.0) about pyrate HOT 7 CLOSED

Thanks for reporting this issue.
The problem comes from the string encoding when writing in / reading from PyLie's database. A fix has been added to master which should solve the issue. Please let me know if it actually does.
Cheers,
Lohan

from pyrate.

Hi Lohan,

almost there, now it is down to a name error:

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

             PyR@TE version 3.0 released August 4th 2020

       L. Sartore,

       F. Lyonnet, I. Schienbein (version 2)
       and F.Staub, A.Wingerter (version 1)
    Please cite arXiv:2007.12700
    Also, please consider citing 1906.04625 when using the 3-loop results

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

Loading the YAML file: /home/tst/Projects/pyrate/models/SM.model ... Done.
Loading the model ... Traceback (most recent call last):
  File "./[email protected]", line 63, in <module>
    model = Model(yamlSettings, runSettings, idb)
  File "/home/tst/Projects/pyrate/src/Core/ModelsClass.py", line 61, in __init__
    self.getGaugegroups(settings, realBasis=self.realBasis)
  File "/home/tst/Projects/pyrate/src/Core/ModelsClass.py", line 410, in getGaugegroups
    self.gaugeGroups[gpName] = GaugeGroup(gpName, gp, self.idb)
  File "/home/tst/Projects/pyrate/src/Definitions/GaugeGroup.py", line 24, in __init__
    self.sName = idb.get(self.type, 'name')
  File "/home/tst/Projects/pyrate/src/PyLie/PyLieDB.py", line 529, in get
    ret = self.__getitem__((args, kwargs))
  File "/home/tst/Projects/pyrate/src/PyLie/PyLieDB.py", line 602, in __getitem__
    return self.readBasicInfo(algebra, objType)
  File "/home/tst/Projects/pyrate/src/PyLie/PyLieDB.py", line 684, in readBasicInfo
    return PyLieDB.parse(self.f[algebra.fn][item])
  File "/home/tst/Projects/pyrate/src/PyLie/PyLieDB.py", line 481, in parse
    return PyLieDB.parse(val[()], objType=objType)
  File "/home/tst/Projects/pyrate/src/PyLie/PyLieDB.py", line 497, in parse
    return PyLieDB.sympify(str(val, 'ASCII'))
  File "/home/tst/Projects/pyrate/src/PyLie/PyLieDB.py", line 458, in sympify
    return eval(expr)
  File "<string>", line 1, in <module>
NameError: name 'A1' is not defined

cheers,
Tom

from pyrate.

Hi Tom,

Could you please try the following things:

• Reset PyLie's database, by deleting the file src/PyLie/PyLieDB.hd5f.gz
• Run PyR@TE and see if you still get the error
• If no errors are raised, try and download again the original PyLieDB.hd5f.gz file from master, and put it in src/PyLie/
• See if you still get the error

I suspect that the database was somehow polluted due to the error you got. The 'A1' string which causes the new error should not be in bytes form, but rather be a simple string. The above steps should help understanding what is going on.
Thanks in advance.
Lohan

from pyrate.

Hi Lohan,

after deleting the .gz, I still get the same error. Of course, also nothing changes after replacing the regenerated database with the one from master again.

cheers,
Tom

from pyrate.

Hi Tom,

I believe that the error comes from changes made in the most recent releases of the h5py module. Please can you confirm that your h5py version is 3.0 or higher ? If yes, I would ask you to downgrade to 2.10 while I'm working on a compatibility fix.
Hopefully this will solve the issue !

Cheers,
Lohan

from pyrate.

Ah yes, I was at 3.1!

Downgrading to 2.10 has resolved the problem, no deletion of the database cache necessary. I suggest to make a note about this in the README.md.

Btw, I've seen that many python projects nowadays distribute a requirements.txt file that specifies all dependencies, and can be parsed by pip:

pip install -r requirements.txt

This could be useful in order to freeze dependency versions. Anyways, feel free to close this issue at will.

cheers,
Tom

from pyrate.

Thanks for the advice.
Anyways the issue is now solved in principle. Thanks again for reporting it!

from pyrate.