* fixed pep8 issues

navimon/NaviCommon.py

@@ -107,11 +107,11 @@ def check_hashes(check_file_list):
     block_size = 65536
     hash_library = hashlib.md5()
     for file in check_file_list:
-        with open(file, 'rb') as afile:
-            buf = afile.read(block_size)
+        with open(file, 'rb') as a_file:
+            buf = a_file.read(block_size)
             while len(buf) > 0:
                 hash_library.update(buf)
-                buf = afile.read(block_size)
+                buf = a_file.read(block_size)
         new_test_dict[file] = hash_library.hexdigest()
     try:
         test_dict = json.load(open(".hashes.tmp"))
@@ -120,6 +120,7 @@ def check_hashes(check_file_list):
                 result = False
                 break
     except Exception as e:
+        print(c_red + "No valid data of last execution found \nPython-ERROR: " + str(e) + c_end)
         result = False
     json.dump(new_test_dict, open(".hashes.tmp", 'w'))
-    return result
\ No newline at end of file
+    return result

navimon/NaviPlotFunctions.py

@@ -12,6 +12,7 @@ def set_general_style(n_colors=11):
     sns.set_style(style='white')
     sns.set_style("whitegrid")
 
+
 def plot_1d_hist(data_frame_list, weights_list, label_list, title='', x_label='', y_label='', x_log=False, y_log=False,
                  show_plot=True, save_plot=True, legend_loc='center left', style='step', export_as='.pdf', dpi=500):
     print('------------------------------------------------------------------')