diff --git a/pyprof/parse/kernel.py b/pyprof/parse/kernel.py
index faba77f..670a005 100644
--- a/pyprof/parse/kernel.py
+++ b/pyprof/parse/kernel.py
@@ -120,8 +120,8 @@ def setRunTimeInfo(self, info):
         self.pid = info['pid']
         self.tid = info['tid']
         self.objId = info['objId']
-        assert(self.rStartTime < self.rEndTime)
-        assert(self.rStartTime < self.kStartTime)
+        assert (self.rStartTime < self.rEndTime)
+        assert (self.rStartTime < self.kStartTime)
 
     def setMarkerInfo(self, info):
         self.layerMarkers, self.traceMarkers, self.reprMarkers, self.pyprofMarkers, self.seqMarkers, self.otherMarkers, self.altMarkers, self.seqId, self.altSeqId, self.layer = info
diff --git a/pyprof/parse/nsight.py b/pyprof/parse/nsight.py
index c298111..c2282d7 100644
--- a/pyprof/parse/nsight.py
+++ b/pyprof/parse/nsight.py
@@ -71,21 +71,22 @@ def getKernelInfo(self):
         """
 		Get GPU kernel info
 		"""
-        cmd = ("SELECT "
-              "demangledName as kNameId, "
-              "strings.value as name, "
-              "runtime.start as rStart, "
-              "runtime.end as rEnd, "
-              "runtime.globalTid as objId, "
-              "runtime.globalTid / 0x1000000 % 0x1000000 AS pid, "
-              "runtime.globalTid % 0x1000000 AS tid, "
-              "kernels.globalPid / 0x1000000 % 0x1000000 AS kpid, "
-              "kernels.correlationId,kernels.start,kernels.end,deviceId,streamId,"
-              "gridX,gridY,gridZ,blockX,blockY,blockZ "
-              "FROM {} AS kernels "
-              "JOIN {} AS strings ON (kNameId = strings.Id) "
-              "JOIN {} AS runtime ON (kernels.correlationId = runtime.correlationId AND kpid = pid) "
-              ).format(self.kernelT, self.stringT, self.runtimeT)
+        cmd = (
+            "SELECT "
+            "demangledName as kNameId, "
+            "strings.value as name, "
+            "runtime.start as rStart, "
+            "runtime.end as rEnd, "
+            "runtime.globalTid as objId, "
+            "runtime.globalTid / 0x1000000 % 0x1000000 AS pid, "
+            "runtime.globalTid % 0x1000000 AS tid, "
+            "kernels.globalPid / 0x1000000 % 0x1000000 AS kpid, "
+            "kernels.correlationId,kernels.start,kernels.end,deviceId,streamId,"
+            "gridX,gridY,gridZ,blockX,blockY,blockZ "
+            "FROM {} AS kernels "
+            "JOIN {} AS strings ON (kNameId = strings.Id) "
+            "JOIN {} AS runtime ON (kernels.correlationId = runtime.correlationId AND kpid = pid) "
+        ).format(self.kernelT, self.stringT, self.runtimeT)
         result = self.db.select(cmd)
         return result
 
diff --git a/pyprof/parse/nvvp.py b/pyprof/parse/nvvp.py
index 1b48940..6792b9b 100644
--- a/pyprof/parse/nvvp.py
+++ b/pyprof/parse/nvvp.py
@@ -93,19 +93,21 @@ def getKernelInfo(self):
         """
 		Get GPU kernel info
 		"""
-        cmd = ("SELECT "
-              "name AS kNameId, "
-              "strings.value as name, "
-              "coalesce(runtime.start, driver.start) as rStart, "
-              "coalesce(runtime.end, driver.end) as rEnd, "
-              "coalesce(runtime.processId, driver.processId) as pid, "
-              "coalesce(runtime.threadId, driver.threadId) & 0xFFFFFFFF as tid, "
-              "kernels.correlationId,kernels.start,kernels.end,deviceId,streamId,"
-              "gridX,gridY,gridZ,blockX,blockY,blockZ "
-              "FROM {} AS kernels "
-              "JOIN {} AS strings ON (KNameId = strings._id_) "
-              "LEFT JOIN {} AS runtime ON (kernels.correlationId = runtime.correlationId) "
-              "LEFT JOIN {} AS driver ON (kernels.correlationId = driver.correlationId) ").format(self.kernelT, self.stringT, self.runtimeT, self.driverT)
+        cmd = (
+            "SELECT "
+            "name AS kNameId, "
+            "strings.value as name, "
+            "coalesce(runtime.start, driver.start) as rStart, "
+            "coalesce(runtime.end, driver.end) as rEnd, "
+            "coalesce(runtime.processId, driver.processId) as pid, "
+            "coalesce(runtime.threadId, driver.threadId) & 0xFFFFFFFF as tid, "
+            "kernels.correlationId,kernels.start,kernels.end,deviceId,streamId,"
+            "gridX,gridY,gridZ,blockX,blockY,blockZ "
+            "FROM {} AS kernels "
+            "JOIN {} AS strings ON (KNameId = strings._id_) "
+            "LEFT JOIN {} AS runtime ON (kernels.correlationId = runtime.correlationId) "
+            "LEFT JOIN {} AS driver ON (kernels.correlationId = driver.correlationId) "
+        ).format(self.kernelT, self.stringT, self.runtimeT, self.driverT)
         result = self.db.select(cmd)
         return result
 
diff --git a/pyprof/parse/parse.py b/pyprof/parse/parse.py
index dcaf8a6..8a3f743 100755
--- a/pyprof/parse/parse.py
+++ b/pyprof/parse/parse.py
@@ -86,7 +86,7 @@ def main():
         #Get and set marker and seqid info
         info = nvvp.getMarkerInfo(k.objId, k.rStartTime, k.rEndTime)
         k.setMarkerInfo(info)
-        
+
         #If the seqId contains both 0 and non zero integers, remove 0.
         if any(seq != 0 for seq in k.seqId) and (0 in k.seqId):
             k.seqId.remove(0)