Error when running scripts_regression_tests.py

[xcj]

I am running scripts_regression_tests.py according to: 6. Porting and validating CIME on a new platform — CIME master documentation, however am encountering the following error:

Any way to resolve this?

"Traceback (most recent call last):
File "./scripts_regression_tests.py", line 2894, in <module>
_main_func(__doc__)
File "./scripts_regression_tests.py", line 2834, in _main_func
MACHINE = Machines()
File "/home/itan/my_cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 53, in __init__
machine = self.probe_machine_name()
File "/home/itan/my_cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 112, in probe_machine_name
machine = self._probe_machine_name_one_guess(nametomatch)
File "/home/itan/my_cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 147, in _probe_machine_name_one_guess
regex = re.compile(regex_str)
File "/cvmfs/soft.computecanada.ca/easybuild/software/2017/Core/python/3.7.4/lib/python3.7/re.py", line 234, in compile
return _compile(pattern, flags)
File "/cvmfs/soft.computecanada.ca/easybuild/software/2017/Core/python/3.7.4/lib/python3.7/re.py", line 286, in _compile
p = sre_compile.compile(pattern, flags)
File "/cvmfs/soft.computecanada.ca/easybuild/software/2017/Core/python/3.7.4/lib/python3.7/sre_compile.py", line 764, in compile
p = sre_parse.parse(p, flags)
File "/cvmfs/soft.computecanada.ca/easybuild/software/2017/Core/python/3.7.4/lib/python3.7/sre_parse.py", line 930, in parse
p = _parse_sub(source, pattern, flags & SRE_FLAG_VERBOSE, 0)
File "/cvmfs/soft.computecanada.ca/easybuild/software/2017/Core/python/3.7.4/lib/python3.7/sre_parse.py", line 426, in _parse_sub
not nested and not items))
File "/cvmfs/soft.computecanada.ca/easybuild/software/2017/Core/python/3.7.4/lib/python3.7/sre_parse.py", line 651, in _parse
source.tell() - here + len(this))
re.error: nothing to repeat at position 0"

 

[emmanueln]

Hi, I'm having the same issue, were you able to solve the problem?
I tried running the script with python 3.7 and 3.6.

Python 3.7 returns:
python3.7 ./scripts_regression_tests.py
Traceback (most recent call last):
File "./scripts_regression_tests.py", line 3628, in <module>
_main_func(__doc__)
File "./scripts_regression_tests.py", line 3571, in _main_func
MACHINE = Machines()
File "$HOME/cesm2/cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 69, in __init__
machine = self.probe_machine_name()
File "$HOME/cesm2/cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 136, in probe_machine_name
machine = self._probe_machine_name_one_guess(nametomatch)
File "$HOME/cesm2/cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 171, in _probe_machine_name_one_guess
regex = re.compile(regex_str)
File "/usr/lib64/python3.7/re.py", line 234, in compile
return _compile(pattern, flags)
File "/usr/lib64/python3.7/re.py", line 286, in _compile
p = sre_compile.compile(pattern, flags)
File "/usr/lib64/python3.7/sre_compile.py", line 764, in compile
p = sre_parse.parse(p, flags)
File "/usr/lib64/python3.7/sre_parse.py", line 924, in parse
p = _parse_sub(source, pattern, flags & SRE_FLAG_VERBOSE, 0)
File "/usr/lib64/python3.7/sre_parse.py", line 420, in _parse_sub
not nested and not items))
File "/usr/lib64/python3.7/sre_parse.py", line 645, in _parse
source.tell() - here + len(this))
re.error: nothing to repeat at position 0


Python 3.6:
python3.6 ./scripts_regression_tests.py
Traceback (most recent call last):
File "./scripts_regression_tests.py", line 3628, in <module>
_main_func(__doc__)
File "./scripts_regression_tests.py", line 3571, in _main_func
MACHINE = Machines()
File "$HOME/cesm2/cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 69, in __init__
machine = self.probe_machine_name()
File "$HOME/cesm2/cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 136, in probe_machine_name
machine = self._probe_machine_name_one_guess(nametomatch)
File "$HOME/cesm2/cesm_sandbox/cime/scripts/tests/../lib/CIME/XML/machines.py", line 171, in _probe_machine_name_one_guess
regex = re.compile(regex_str)
File "$HOME/.pyenv/versions/3.6.10/lib/python3.6/re.py", line 233, in compile
return _compile(pattern, flags)
File "$HOME/.pyenv/versions/3.6.10/lib/python3.6/re.py", line 301, in _compile
p = sre_compile.compile(pattern, flags)
File "$HOME/.pyenv/versions/3.6.10/lib/python3.6/sre_compile.py", line 562, in compile
p = sre_parse.parse(p, flags)
File "$HOME/.pyenv/versions/3.6.10/lib/python3.6/sre_parse.py", line 855, in parse
p = _parse_sub(source, pattern, flags & SRE_FLAG_VERBOSE, 0)
File "$HOME/.pyenv/versions/3.6.10/lib/python3.6/sre_parse.py", line 416, in _parse_sub
not nested and not items))
File "$HOME/.pyenv/versions/3.6.10/lib/python3.6/sre_parse.py", line 616, in _parse
source.tell() - here + len(this))
sre_constants.error: nothing to repeat at position 0


Thanks, best regards.