+ python -c 'import torch'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/opt/conda/envs/testenv/lib/python3.9/site-packages/torch/__init__.py", line 1232, in <module>
    from . import _meta_registrations
  File "/opt/conda/envs/testenv/lib/python3.9/site-packages/torch/_meta_registrations.py", line 7, in <module>
    from torch._decomp import _add_op_to_registry, global_decomposition_table, meta_table
  File "/opt/conda/envs/testenv/lib/python3.9/site-packages/torch/_decomp/__init__.py", line 168, in <module>
    import torch._decomp.decompositions
  File "/opt/conda/envs/testenv/lib/python3.9/site-packages/torch/_decomp/decompositions.py", line 10, in <module>
    import torch._prims as prims
  File "/opt/conda/envs/testenv/lib/python3.9/site-packages/torch/_prims/__init__.py", line 34, in <module>
    from torch.fx.experimental.symbolic_shapes import sym_float
  File "/opt/conda/envs/testenv/lib/python3.9/site-packages/torch/fx/experimental/symbolic_shapes.py", line 451, in <module>
    class Symbol(sympy.Dummy):
NameError: name 'sympy' is not defined