junrushao commented on PR #15286:
URL: https://github.com/apache/tvm/pull/15286#issuecomment-1629894758

   NOTE: #14855 introduces a bug in importing order:
   
   ```
   Traceback (most recent call last):
     File "/root/Projects/tvm-dev/main.py", line 10, in <module>
       from tvm.testing import local_run
     File "/root/Projects/tvm-dev/python/tvm/testing/__init__.py", line 21, in 
<module>
       from . import auto_scheduler, autotvm
     File "/root/Projects/tvm-dev/python/tvm/testing/auto_scheduler.py", line 
20, in <module>
       from tvm import auto_scheduler, te, topi
     File "/root/Projects/tvm-dev/python/tvm/topi/__init__.py", line 51, in 
<module>
       from . import nn
     File "/root/Projects/tvm-dev/python/tvm/topi/nn/__init__.py", line 35, in 
<module>
       from .conv3d_transpose import *
     File "/root/Projects/tvm-dev/python/tvm/topi/nn/conv3d_transpose.py", line 
21, in <module>
       from tvm import relay
     File "/root/Projects/tvm-dev/python/tvm/relay/__init__.py", line 29, in 
<module>
       from . import prelude
     File "/root/Projects/tvm-dev/python/tvm/relay/prelude.py", line 21, in 
<module>
       from tvm.relay.transform import ToANormalFormExpr
     File "/root/Projects/tvm-dev/python/tvm/relay/transform/__init__.py", line 
22, in <module>
       from . import fake_quantization_to_integer, mixed_precision
     File 
"/root/Projects/tvm-dev/python/tvm/relay/transform/fake_quantization_to_integer.py",
 line 25, in <module>
       from tvm.relay.qnn.op import canonicalizations
     File "/root/Projects/tvm-dev/python/tvm/relay/qnn/__init__.py", line 20, 
in <module>
       from . import op
     File "/root/Projects/tvm-dev/python/tvm/relay/qnn/op/__init__.py", line 
21, in <module>
       from .qnn import *
     File "/root/Projects/tvm-dev/python/tvm/relay/qnn/op/qnn.py", line 26, in 
<module>
       from tvm.relay.op.nn.utils import get_pad_tuple2d
     File "/root/Projects/tvm-dev/python/tvm/relay/op/__init__.py", line 35, in 
<module>
       from . import strategy
     File "/root/Projects/tvm-dev/python/tvm/relay/op/strategy/__init__.py", 
line 24, in <module>
       from . import arm_cpu
     File "/root/Projects/tvm-dev/python/tvm/relay/op/strategy/arm_cpu.py", 
line 29, in <module>
       from ....topi.arm_cpu.mprofile import dsp
     File "/root/Projects/tvm-dev/python/tvm/topi/arm_cpu/__init__.py", line 
33, in <module>
       from . import qnn_alter_op
     File "/root/Projects/tvm-dev/python/tvm/topi/arm_cpu/qnn_alter_op.py", 
line 25, in <module>
       from ..nn import qnn_conv2d_alter_layout, add_alter_layout, 
qnn_requantize_alter_layout
   ImportError: cannot import name 'qnn_conv2d_alter_layout' from partially 
initialized module 'tvm.topi.nn' (most likely due to a circular import) 
(/root/Projects/tvm-dev/python/tvm/topi/nn/__init__.py)
   ```
   
   This should be relatively easy to fix, but for now, to quickly unblock us 
from making progress, let's consider a temporary revert


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