I'd been using TenPy in my project for a while. Up to now, I only run my code on my MacBook and PC(Ubuntu), and it works very fine. Now, I move the same code to run on the university cluster (CentOS7). After installing TeNPy from source, my code raised an ImportError due to circular import when run.
Code: Select all
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ImportError Traceback (most recent call last)
Cell In[1], line 7
4 os.environ["OMP_NUM_THREADS"] = "4"
6 from tenpy.tools.misc import setup_logging
----> 7 from utility_func import init_state
File /home/my_project/PhD_project/utility_func.py:3
1 import numpy as np
2 from tenpy.linalg import np_conserved as npc
----> 3 from tenpy.networks.site import SpinSite
4 from tenpy.models.lattice import Chain
5 from My_classes import get_MPDO, MyMPS
File /home/my_project/TeNPy/tenpy/networks/__init__.py:19
1 """Definitions of tensor networks like MPS and MPO.
2
3 Here, 'tensor network' refers just to the (parital) contraction of tensors.
(...)
15 purification_mps
16 """
17 # Copyright 2018-2023 TeNPy Developers, GNU GPLv3
---> 19 from . import site, mps, mpo, purification_mps
21 __all__ = ['site', 'mps', 'mpo', 'terms', 'purification_mps']
File /home/my_project/TeNPy/tenpy/networks/mps.py:168
166 from ..tools.cache import DictCache
167 from ..tools import hdf5_io
--> 168 from ..algorithms.truncation import TruncationError, svd_theta, _machine_prec_trunc_par
170 __all__ = ['BaseMPSExpectationValue', 'MPS', 'BaseEnvironment', 'MPSEnvironment', 'TransferMatrix',
171 'InitialStateBuilder', 'build_initial_state']
174 class BaseMPSExpectationValue(metaclass=ABCMeta):
File /home/my_project/TeNPy/tenpy/algorithms/__init__.py:23
1 """A collection of algorithms such as TEBD and DMRG.
2
3 .. rubric:: Submodules
(...)
19 disentangler
20 """
21 # Copyright 2018-2023 TeNPy Developers, GNU GPLv3
---> 23 from . import algorithm, truncation, dmrg, dmrg_parallel, disentangler, mps_common, tebd, tdvp, \
24 exact_diag, purification, network_contractor, mpo_evolution
26 __all__ = [
27 "algorithm",
28 "truncation",
(...)
38 "disentangler",
39 ]
File /home/my_project/TeNPy/tenpy/algorithms/dmrg.py:42
39 logger = logging.getLogger(__name__)
41 from ..linalg import np_conserved as npc
---> 42 from ..networks.mps import MPSEnvironment
43 from ..linalg.lanczos import lanczos, lanczos_arpack
44 from .truncation import truncate, svd_theta
ImportError: cannot import name 'MPSEnvironment' from partially initialized module 'tenpy.networks.mps' (most likely due to a circular import) (/home/my_project/TeNPy/tenpy/networks/mps.py)
**EDIT**: Okay, I think I did something during installing from source. I've tried reinstall from conda-forge channel and the error has gone.