我正在处理我的python脚本以获取按钮列表。我的代码有问题。当我按下键盘的向下箭头按钮时，出现错误：TypeError: 'instancemethod' object is unsubscriptable
错误是跳到这一行：
for channel in channels[page_no*7:page_no*7+7]:
以下是完整代码：
#get actioncodes from keyboard.xml
ACTION_MOVE_LEFT = 1
ACTION_MOVE_RIGHT = 2
ACTION_MOVE_UP = 3
ACTION_MOVE_DOWN = 4
CHANNELS_PER_PAGE = 7
class MyClass(xbmcgui.WindowXML):
def __new__(cls):
return super(MyClass, cls).__new__(cls, 'script-tvguide-mainmenu.xml', ADDON.getAddonInfo('path'))
def __init__(self):
self._timel = []
self.thread = None
self.buttonList=[]
self.last_page = False
def All_Channels(self):
yellow_flag = True
global __killthread__
self.getControl(4202).setLabel("0%")
try:
# DOWNLOAD THE XML SOURCE HERE
url = ADDON.getSetting('allchannel.url')
data = ''
response = urllib2.urlopen(url)
meta = response.info()
file_size = int(meta.getheaders("Content-Length")[0])
file_size_dl = 0
block_size = 2048
while True and not __killthread__:
mbuffer = response.read(block_size)
if not mbuffer:
break
file_size_dl += len(mbuffer)
data += mbuffer
state = int(file_size_dl * 10.0 / file_size)
self.getControl(4202).setLabel(str(state) + '%')
else:
if __killthread__:
raise AbortDownload('downloading')
del response
# CREATE DATABASE
profilePath = xbmc.translatePath(os.path.join('special://userdata/addon_data/script.tvguide', 'source.db'))
if os.path.exists(profilePath):
os.remove(profilePath)
con = database.connect(profilePath)
cur = con.cursor()
cur.execute('CREATE TABLE programs(channel TEXT, title TEXT, start_date TIMESTAMP, stop_date TIMESTAMP, description TEXT)')
con.commit()
# Get the loaded data
total_count = data.count('programme')/2
tv_elem = ElementTree.parse(StringIO.StringIO(data)).getroot()
cur = con.cursor()
count = 1
channels = OrderedDict()
for channel in tv_elem.findall('channel'):
channel_name = channel.find('display-name').text
for program in channel.findall('programme'):
if __killthread__:
raise AbortDownload('filling')
title = program.find('title').text
start_time = program.get("start")
stop_time = program.get("stop")
cur.execute("INSERT INTO programs(channel, title, start_date, stop_date)" + " VALUES(?, ?, ?, ?)", [channel_name, title, start_time, stop_time])
status = 10 + int(float(count)/float(total_count) * 90.0)
self.getControl(4202).setLabel(str(status) + '%')
xbmc.sleep(10)
count += 1
con.commit()
print 'Channels have been successfully stored into the database!'
self.getControl(4202).setLabel('100%')
xbmc.sleep(3000)
# Set the date and time row
current_time = time.time() # now (in seconds)
half_hour = current_time + 60*30 # now + 30 minutes
one_hour = current_time + 60*60 # now + 60 minutes
for t in [current_time,half_hour,one_hour]:
if (0 <= datetime.datetime.now().minute <= 29):
self.getControl(4204).setLabel(time.strftime("%I").lstrip('0') + ':00' + time.strftime("%p"))
self.getControl(4205).setLabel(time.strftime("%I").lstrip('0') + ':30' + time.strftime("%p"))
self.getControl(4206).setLabel(time.strftime("%I" + ":00%p",time.localtime(t)).lstrip("0"))
else:
self.getControl(4204).setLabel(time.strftime("%I").lstrip('0') + ':30' + time.strftime("%p"))
self.getControl(4205).setLabel(time.strftime("%I" + ":00%p",time.localtime(t)).lstrip("0"))
self.getControl(4206).setLabel(time.strftime("%I" + ":30%p",time.localtime(t)).lstrip("0"))
#Pull the data from the database
channelList = list()
database_path = xbmc.translatePath(os.path.join('special://userdata/addon_data/script.tvguide', 'source.db'))
if os.path.exists(database_path):
#get the channels list
cur.execute('SELECT channel FROM programs WHERE channel GROUP BY channel')
for row in cur:
channels = row[0].encode('ascii')
channelList.append(channels)
# set the channels text
for index in range(0, CHANNELS_PER_PAGE):
channel = channelList[index]
channel_index = index
if channel is not None:
pass
#self.getControl(4207 + index).setLabel(channel)
#self.button.setLabel(channel, 'font14', '0xFFFFFFFF', '0xFFFF3300', '0xFF000000')
#get the programs list
cur.execute('SELECT channel, title, start_date, stop_date FROM programs WHERE channel=?', [channel])
programList = list()
programs = cur.fetchall()
start_pos = 368 # indent for first program
for row in programs:
program = row[1].encode('ascii'), str(row[2]), str(row[3])
title = row[1].encode('ascii')
program_start_date = str(row[2])
program_end_date = str(row[3])
#convert the date formats into minutes
minutes_start = self.parseDateTimeToMinutesSinceEpoch(program_start_date)
minutes_end = self.parseDateTimeToMinutesSinceEpoch(program_end_date)
minutes_length = minutes_end - minutes_start
program_length = minutes_length
program_notification = program
programs_top_backup = 0
programs_top = 315
program_height = 34.5
program_gap = 2.5
position_start = start_pos
position_top = programs_top + channel_index * (program_height + program_gap)
if 10 <= program_length < 60:
program_width = 342.5
elif 60 <= program_length < 90:
program_width = 690
elif 90 <= program_length < 105:
program_width = 1050
elif 105 <= program_length < 120:
program_width = 1400
elif 120 <= program_length < 150:
program_width = 1750
elif 150 <= program_length < 180:
program_width = 2100
elif 180 <= program_length < 210:
program_width = 2450
elif 210 <= program_length < 240:
program_width = 2800
elif 240 <= program_length < 270:
program_width = 3150
elif 270 <= program_length < 300:
program_width = 3500
elif 300 <= program_length < 330:
program_width = 3850
elif 330 <= program_length < 360:
program_width = 4200
elif 360 <= program_length < 390:
program_width = 3250
elif 390 <= program_length < 420:
program_width = 4550
elif 420 <= program_length < 450:
program_width = 4900
elif 450 <= program_length < 480:
program_width = 5250
start_pos += program_width + 2 * program_gap
if program_width > 1:
if yellow_flag:
if program_notification:
button_nofocus = 'changelang_yellow.png'
button_focus = 'channels_bar1.png'
else:
button_nofocus = 'changelang_yellow.png'
button_focus = 'channels_bar1.png'
yellow_flag = False
text_color = '0xFF000000'
else:
if program_notification:
button_nofocus = 'channels_bar1.png'
button_focus = 'channels_yellow.png'
else:
button_nofocus = 'channels_bar1.png'
button_focus = 'channels_yellow.png'
text_color = '0xFFFFFFFF'
if program_width < 1:
program_title = ''
else:
program_title = '[B]' + title + '[/B]'
def showepg(self, channels, page_no):
self.last_page = False
self.removeControls(self.buttonList)
self.buttonList = []
page_no = 0
self.button = [[0 for x in xrange(20)] for x in xrange(20)]
self.pdata = [[dict() for x in xrange(20)] for x in xrange(20)]
row = 0
for channel in channels[page_no*7:page_no*7+7]:
#get the list of buttons in array
print channel
self.pdata[row][0]['url'] = channel['url']
self.pdata[row][0]['cname'] = xbmcgui.ControlLabel(0, self.startPos + 17 + (row * row_height), 100, row_height,channel['callSign'])
self.pdata[row][0]['cicon'] = channel['thumbnail'].replace('\\','')
self.pdata[row][0]['cimage'] = xbmcgui.ControlImage(100, self.startPos + (row * row_height), logo_width, logo_width,self.pdata[row][0]['cicon'])
self.buttonList.append(self.pdata[row][0]['cimage'])
self.buttonList.append(self.pdata[row][0]['cname'])
events = channel['events']
col = 0
coffset = 0
for event in events:
try:
self.pdata[row][col]['desc'] = '%s - %s\n%s' % (event['startTimeDisplay'], event['endTimeDisplay'], str(event['program']['description']))
#except:
self.pdata[row][col]['desc'] = ""
self.pdata[row][col]['duration'] = str(event['duration'])
self.pdata[row][col]['eptitle'] = '%s - %s : %s' % (event['startTimeDisplay'], event['endTimeDisplay'], event['eptitle'])
cwidth = int((float(event['percentWidth']) / 100) * progs_width)
self.button[row][col] = xbmcgui.ControlButton(poffset + coffset, self.startPos + (row * row_height), cwidth, row_height, event['program']['title'])
self.buttonList.append(self.button[row][col])
coffset = coffset + cwidth
col = col + 1
row = row + 1
if row == MAXIMUMROW:
break
self.addControls(self.buttonList)
if row == 0:
self.current_page = 0
self.showepg(channels, 0) # hack to display first page after last page - could be problem for empty epg
return
elif row < MAXIMUMROW:
self.last_page = True
maxrow = row
for row in range(maxrow + 1):
for col in range(20):
if self.button[row][col] == 0:
break
else:
if row < maxrow-1:
self.button[row][col].controlDown(self.button[row+1][0])
if row == maxrow-1:
if maxrow == MAXIMUMROW:
self.button[row][col].controlDown(self.button[row][col])
if col > 0:
self.button[row][col].controlLeft(self.button[row][col-1])
self.button[row][col-1].controlRight(self.button[row][col])
if row > 0:
self.button[row][col].controlUp(self.button[row-1][0])
if row == 0:
self.button[row][col].controlUp(self.button[row][col])
self.topRow = True
self.bottomRow = False
control = self.button[0][0]
self.setFocus(control)
self.updateEpg(control)
def onAction(self, action):
self.current_page = 0
self.last_page = False
if action == ACTION_MOVE_DOWN:
if allchannels_enabled:
if self.last_page:
self.current_page = 0
else:
self.current_page += 1
self.showepg(self.All_Channels, self.current_page)
return
我不明白错误是什么意思。我在按下向下箭头按钮时尝试使用self.All_Channels定义频道以获取按钮控制。
有谁知道我为什么会收到错误以及如何解决这个问题？
答案 0 :(得分：1)
错误表示您在不支持它的内容上使用[]，可以使用（例如）None[0]重现此内容。
现在，代码中的具体问题似乎是：
self.showepg(self.All_Channels, self.current_page)
这样做，是将函数 self.All_Channels传递给self.showepg函数。这就是为什么你在错误中看到instancemethod，可能想要做的事情，就是在这里添加括号：
self.showepg(self.All_Channels(), self.current_page)