lf_qa.py : pep8 linting , autopep8

Signed-off-by: Chuck SmileyRekiere <chuck.smileyrekiere@candelatech.com>

py-scripts/tools/lf_qa.py

@@ -394,7 +394,6 @@ class csv_sql:
         print("test_run_list first [0] {}".format(test_run_list[0]))
         print("test_run_list last [-1] {}".format(test_run_list[-1]))
 
-
         self.test_run = test_run_list[-1]
         # collect this runs subtest totals
         df_tmp = df3.loc[df3['test_run'] == self.test_run]
@@ -446,9 +445,6 @@ class csv_sql:
                 HW=self.dut_hw_version,
                 SN=self.dut_serial_num))
 
-
-
-
     def generate_graph_png(self):
         print(
             "generate png and html to display, generate time: {}".format(
@@ -488,7 +484,6 @@ class csv_sql:
         self.test_rig_list = test_rig_list
         print("test_rig_list: {}".format(test_rig_list))
 
-
         # create the rest of the graphs
         for test_rig in test_rig_list:
             for test_tag in test_tag_list:
@@ -575,7 +570,6 @@ class csv_sql:
                             )
                             kpi_fig.update_layout(autotypenumbers='convert types')
 
-
                             self.generate_png(df_tmp=df_tmp,
                                               group=group,
                                               test_id_list=test_id_list,
@@ -665,7 +659,6 @@ Usage: lf_qa.py --store --png --path <path to directories to traverse> --databas
             print("Need to enter an action of --store --png ")
             exit(1)
 
-
     # create report class for reporting
     report = lf_report(_path=__path,
                        _results_dir_name=__dir,