Fix pytorch axis (#14930)

* fix conv transpose import from TF

* fix String::fromwe() to String::from()

* torch squeeze can use a list of axis

* added test for squeeze with multiple axis (pytorch 2)

* clean old code

* code without reformating

---------

Co-authored-by: Mikael Sevenier <mikael.sevenier@sima.ai>

python/tvm/relay/frontend/pytorch.py

@@ -399,7 +399,8 @@ def squeeze(self, inputs, input_types):
             axis = None
         else:
             # TODO (t-vi): why is the cast to int needed? similarly elsewhere
-            axis = [int(inputs[1])]
+            inputs = [inputs[1]] if not isinstance(inputs[1], list) else inputs[1]
+            axis = [int(v) for v in inputs]
 
         return _op.transform.squeeze(data, axis)
 

tests/python/frontend/pytorch/test_forward.py

@@ -578,9 +578,15 @@ class Squeeze2(Module):
         def forward(self, *args):
             return args[0].squeeze(1)
 
+    class Squeeze3(Module):
+        def forward(self, *args):
+            return args[0].squeeze((1, 3))
+
     input_data = torch.rand(input_shape).float()
     verify_model(Squeeze1().float().eval(), input_data=input_data)
     verify_model(Squeeze2().float().eval(), input_data=input_data)
+    if package_version.parse(torch.__version__) >= package_version.parse("2.0.0"):
+        verify_model(Squeeze3().float().eval(), input_data=input_data)
 
 
 @tvm.testing.uses_gpu