diff --git a/topi/python/topi/nn/conv2d.py b/topi/python/topi/nn/conv2d.py
index 6b739ee030577..dc8312cb0d200 100644
--- a/topi/python/topi/nn/conv2d.py
+++ b/topi/python/topi/nn/conv2d.py
@@ -28,8 +28,8 @@
 
 # workload description of conv2d
 Workload = namedtuple('Workload',
-                      ['in_dtype', 'out_dtype', 'height', 'width', 'in_filter', 'groups', 'out_filter',
-                       'hkernel', 'wkernel', 'hpad', 'wpad', 'hstride', 'wstride'])
+                      ['in_dtype', 'out_dtype', 'height', 'width', 'in_filter', 'groups',
+                       'out_filter', 'hkernel', 'wkernel', 'hpad', 'wpad', 'hstride', 'wstride'])
 
 @tvm.target.generic_func
 def conv2d(input, filter, strides, padding, dilation, layout='NCHW', out_dtype=None):
diff --git a/topi/python/topi/x86/conv2d.py b/topi/python/topi/x86/conv2d.py
index 7775ca6f43b85..0e88eb8faeb31 100644
--- a/topi/python/topi/x86/conv2d.py
+++ b/topi/python/topi/x86/conv2d.py
@@ -37,7 +37,8 @@
 
 logger = logging.getLogger('topi')
 
-def _get_default_config(cfg, data, kernel, strides, padding, out_dtype, is_depthwise=False, layout='NCHW'):
+def _get_default_config(cfg, data, kernel, strides, padding, out_dtype, is_depthwise=False,
+                        layout='NCHW'):
     """
     Get default schedule config for the workload
     """
@@ -280,10 +281,10 @@ def traverse(op):
                     conv2d_avx_1x1._schedule_conv_nhwc_pack_int8(*args)
                 else:
                     raise ValueError("Only support 1x1 kernel with "
-                             "schedule template.")
+                                     "schedule template.")
             else:
                 raise ValueError("Not support this data type {} with "
-                         "schedule template.".format(data.dtype))
+                                 "schedule template.".format(data.dtype))
 
         elif 'conv2d_nhwc' in op.tag:
             conv = op.output(0)
@@ -453,9 +454,11 @@ def _declaration_conv_NCHWc(cfg, data, kernel, strides,
     n, ic_chunk, ih, iw, ic_bn = get_const_tuple(data.shape)
     in_channel = ic_chunk * ic_bn
     if data.dtype == 'uint8':
-        oc_chunk, ic_chunk_group, kernel_height, kernel_width, _, oc_bn, _ = get_const_tuple(kernel.shape)
+        oc_chunk, ic_chunk_group, kernel_height, kernel_width, _, oc_bn, _ = \
+            get_const_tuple(kernel.shape)
     else:
-        oc_chunk, ic_chunk_group, kernel_height, kernel_width, _, oc_bn = get_const_tuple(kernel.shape)
+        oc_chunk, ic_chunk_group, kernel_height, kernel_width, _, oc_bn = \
+            get_const_tuple(kernel.shape)
     num_filter = oc_chunk * oc_bn
     groups = ic_chunk // ic_chunk_group
 
@@ -500,7 +503,7 @@ def _declaration_conv_NCHWc(cfg, data, kernel, strides,
                                           oc_block, ic_s_inner].astype(out_dtype),
                                    axis=[kh, kw, ic_outer, ic_f_inner, ic_s_inner]),
                            name='conv2d_NCHWc_int8', tag="conv2d_NCHWc_int8")
-    elif data.dtype == 'uint8':
+    if data.dtype == 'uint8':
     	# for int8 group conv support
         n_elems = 4
         ic_chunk = in_channel//ic_bn
@@ -509,7 +512,9 @@ def _declaration_conv_NCHWc(cfg, data, kernel, strides,
         ic_s_inner = tvm.reduce_axis((0, n_elems), name='ic_s_inner')
         oshape = (n, oc_chunk, out_height, out_width, oc_bn)
         return tvm.compute(oshape, lambda n, occ, oh, ow, oc_block:
-                           tvm.sum(data_pad[n, (occ*oc_bn//(oc_chunk*oc_bn//groups))*(ic_chunk//groups)+ic_outer, oh*HSTR+kh, ow*WSTR+kw,
+                           tvm.sum(data_pad[n, (occ*oc_bn//(oc_chunk*oc_bn//groups))*\
+                                            (ic_chunk//groups)+ic_outer,
+                                            oh*HSTR+kh, ow*WSTR+kw,
                                             ic_f_inner * n_elems +  ic_s_inner].astype(out_dtype) *
                                    kernel[occ, ic_outer, kh, kw, ic_f_inner,
                                           oc_block, ic_s_inner].astype(out_dtype),
diff --git a/topi/python/topi/x86/conv2d_avx_1x1.py b/topi/python/topi/x86/conv2d_avx_1x1.py
index 29bb0802e3c59..4994d4580ab58 100644
--- a/topi/python/topi/x86/conv2d_avx_1x1.py
+++ b/topi/python/topi/x86/conv2d_avx_1x1.py
@@ -269,7 +269,7 @@ def _declaration_conv_nhwc_pack(cfg, Input, Filter, stride, padding, dilation, o
         dilation_h, dilation_w = dilation
 
     batch, in_height, in_width, in_channel = Input.shape
-    kernel_h, kernel_w, num_filter, channel  = Filter.shape
+    kernel_h, kernel_w, num_filter, channel = Filter.shape
 
     # compute the output shape
     dilated_kernel_h = (kernel_h - 1) * dilation_h + 1
@@ -287,7 +287,8 @@ def _declaration_conv_nhwc_pack(cfg, Input, Filter, stride, padding, dilation, o
     # packing the Filter to let memory access be consecutive for AVX512 intrinsic
     # Done in pre-compute stage
     packw_shape = (kernel_h, kernel_w, num_filter/16, 16*(channel/4), 4)
-    PackW = tvm.compute(packw_shape, lambda a, b, c, d, e: Filter[a][b][c*16+d%16][d/16*4+e], name="packed_filter")
+    PackW = tvm.compute(packw_shape, lambda a, b, c, d, e: Filter[a][b][c*16+d%16][d/16*4+e],
+                        name="packed_filter")
 
     rc = tvm.reduce_axis((0, in_channel), name='rc')
     ry = tvm.reduce_axis((0, kernel_h), name='ry')
@@ -352,4 +353,3 @@ def _schedule_conv_nhwc_pack_int8(s, cfg, data, conv_out, last):
         s[O].vectorize(oc_block)
 
     return s
-