Update EcaModule.py

Make pylint happy
(commas, unused imports, missed imports)

timm/models/EcaModule.py

@@ -1,17 +1,17 @@
 '''
-ECA module from ECAnet 
+ECA module from ECAnet
 original paper: ECA-Net: Efficient Channel Attention for Deep Convolutional Neural Networks
 https://arxiv.org/abs/1910.03151
 
 https://github.com/BangguWu/ECANet
 original ECA model borrowed from original github
-modified circular ECA implementation and 
+modified circular ECA implementation and
 adoptation for use in pytorch image models package
 by Chris Ha https://github.com/VRandme
 
 MIT License
 
-Copyright (c) 2019 BangguWu, Qilong Wang 
+Copyright (c) 2019 BangguWu, Qilong Wang
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -31,10 +31,8 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 '''
-import torch
 from torch import nn
-from torch.nn.parameter import Parameter
+import torch.nn.functional as F
-
 
 class EcaModule(nn.Module):
     """Constructs a ECA module.
@@ -47,7 +45,7 @@ class EcaModule(nn.Module):
         super(EcaModule, self).__init__()
         assert k_size % 2 == 1
         self.avg_pool = nn.AdaptiveAvgPool2d(1)
-        self.conv = nn.Conv1d(1, 1, kernel_size=k_size, padding=(k_size - 1) // 2, bias=False) 
+        self.conv = nn.Conv1d(1, 1, kernel_size=k_size, padding=(k_size - 1) // 2, bias=False)
         self.sigmoid = nn.Sigmoid()
     def forward(self, x):
         # feature descriptor on the global spatial information
@@ -82,11 +80,11 @@ class EcaModule(nn.Module):
 class CecaModule(nn.Module):
     """Constructs a circular ECA module.
     the primary difference is that the conv uses a circular padding rather than zero padding.
-    This is because unlike images, the channels themselves do not have inherent ordering nor 
+    This is because unlike images, the channels themselves do not have inherent ordering nor
     locality. Although this module in essence, applies such an assumption, it is unnecessary
     to limit the channels on either "edge" from being circularly adapted to each other.
     This will fundamentally increase connectivity and possibly increase performance metrics
-    (accuracy, robustness), without signficantly impacting resource metrics 
+    (accuracy, robustness), without signficantly impacting resource metrics
     (parameter size, throughput,latency, etc)
 
     Args:
@@ -100,16 +98,16 @@ class CecaModule(nn.Module):
         #pytorch circular padding mode is bugged as of pytorch 1.4
         # see https://github.com/pytorch/pytorch/pull/17240
         #implement manual circular padding
-        self.conv = nn.Conv1d(1, 1, kernel_size=k_size, padding = 0, bias=False)
+        self.conv = nn.Conv1d(1, 1, kernel_size=k_size, padding=0, bias=False)
         self.padding = (k_size - 1) // 2
         self.sigmoid = nn.Sigmoid()
 
     def forward(self, x):
         # feature descriptor on the global spatial information
         y = self.avg_pool(x)
-        
+
         #manually implement circular padding, F.pad does not seemed to be bugged
-        y = F.pad(y.view(x.shape[0],1,-1),(self.padding,self.padding),mode='circular')
+        y = F.pad(y.view(x.shape[0], 1, -1), (self.padding, self.padding), mode='circular')
 
         # Two different branches of ECA module
         y = self.conv(y)