Fix some codacy issues with python files

README.md

@@ -6,7 +6,7 @@ It uses the Arduino Core for ESP8266 framework and a number of 3rd party librari
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+[![codacy](https://img.shields.io/codacy/grade/c9496e25cf07434cba786b462cb15f49/dev.svg)](https://www.codacy.com/app/xoseperez/espurna/dashboard)
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code/espurna/config/build.h

@@ -1,3 +0,0 @@
-// DO NOT EDIT THIS FILE MANUALLY
-// This file is modified by PlatformIO
-#define APP_BUILD_FLAGS ""

code/extra_scripts.py

@@ -6,7 +6,7 @@ Import("env")
 # Utils
 # ------------------------------------------------------------------------------
 
-class Color:
+class Color(object):
     BLACK = '\x1b[1;30m'
     RED = '\x1b[1;31m'
     GREEN = '\x1b[1;32m'
@@ -32,7 +32,7 @@ def clr(color, text):
 # ------------------------------------------------------------------------------
 
 def check_size(source, target, env):
-    time.sleep(1)
+    time.sleep(2)
     size = target[0].get_size()
     print clr(Color.LIGHT_BLUE, "Binary size: %s bytes" % size)
     #if size > 512000:

code/memanalyzer.py

@@ -50,7 +50,7 @@ description = "ESPurna Memory Analyzer v0.1"
 def file_size(file):
     try:
         return os.stat(file).st_size
-    except:
+    except OSError:
         return 0
 
 
@@ -65,7 +65,7 @@ def analyse_memory(elf_file):
     # print("------------------------------------------------------------------------------");
     ret = {}
 
-    for (id_, descr) in list(sections.items()):
+    for (id_, _) in list(sections.items()):
         section_start_token = " _%s_start" % id_
         section_end_token = " _%s_end" % id_
         section_start = -1

code/ota.py

@@ -155,7 +155,7 @@ def input_board():
     # Choose the board
     try:
         index = int(input("Choose the board you want to flash (empty if none of these): "))
-    except:
+    except ValueError:
         index = 0
     if index < 0 or len(devices) < index:
         print("Board number must be between 1 and %s\n" % str(len(devices)))
@@ -175,7 +175,7 @@ def input_board():
         print()
         try:
             index = int(input("Choose the board type you want to flash: "))
-        except:
+        except ValueError:
             index = 0
         if index < 1 or len(boards) < index:
             print("Board number must be between 1 and %s\n" % str(len(boards)))
@@ -186,17 +186,13 @@ def input_board():
     if board.get('size', 0) == 0:
         try:
             board['size'] = int(input("Board memory size (1 for 1M, 4 for 4M): "))
-        except:
+        except ValueError:
             print("Wrong memory size")
             return None
 
     # Choose IP of none before
     if len(board.get('ip', '')) == 0:
-        try:
-            board['ip'] = input("IP of the device to flash (empty for 192.168.4.1): ") or "192.168.4.1"
-        except:
-            print("Wrong IP")
-            return None
+        board['ip'] = input("IP of the device to flash (empty for 192.168.4.1): ") or "192.168.4.1"
 
     return board