Twisted-AMP：意外的关键字参数
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【中文标题】Twisted-AMP：意外的关键字参数【英文标题】：Twisted-AMP : an unexpected keyword argument 【发布时间】：2013-06-01 06:47:13 【问题描述】：我正在使用 python (twisted amp) 创建一个网络监控工具，它基本上是一个 rpc 系统，客户端安装在系统上并将数据发送到服务器。我在客户端的一个功能是给出这个错误
[Failure instance: Traceback: <type 'exceptions.TypeError'>: status_list() got an unexpected keyword argument 'Process_stat'
我无法理解触发此错误的原因。 这是整个错误消息：
[Failure instance: Traceback: <type 'exceptions.TypeError'>: status_list() got an unexpected keyword argument 'Process_stat'
C:\Python27\lib\site-packages\twisted\internet\defer.py:368:callback
C:\Python27\lib\site-packages\twisted\internet\defer.py:464:_startRunCallbacks
C:\Python27\lib\site-packages\twisted\internet\defer.py:551:_runCallbacks
C:\Users\Abhishek\Desktop\amp_client.py:171:status_list
--- <exception caught here> ---
C:\Python27\lib\site-packages\twisted\protocols\amp.py:818:callRemote
这是客户端代码：
from twisted.internet import reactor
from twisted.internet.protocol import ClientCreator
from twisted.protocols import amp
import psutil
import datetime
import socket
import platform,sys,os
Network_Status=0
main_protocol =0
My_Mac= "NULL"
class status_list(amp.Command):
arguments = [('MAC', amp.String()),
('Process_stat', amp.String()),
('Disk_Stat', amp.String()),
('IP', amp.String())]
response = [
('req_status', amp.Integer()),
('ALIGN_FUNCTION',amp.String()),
('ALIGN_Confirmation',amp.Integer()),
('Callback_offset',amp.Integer())]
class logging_group(amp.Command):
arguments =[('MAC', amp.String()),
('EVENT_MSG', amp.String()),
('EVENT_TYPE', amp.Integer()),
('EVENT_DATETIME', amp.String())]
response = [('req_status', amp.String()),
('ALIGN_FUNCTION', amp.String()),
('ALIGN_Confirmation', amp.Integer()),
('Callback_offset',amp.Integer())]
class register_procedure(amp.Command):
arguments = [('MAC',amp.String()),
('IP',amp.String()),
('Computer_Name',amp.String()),
('OS',amp.String())]
response = [('req_status', amp.String()),
('ALIGN_FUNCTION', amp.String()),
('ALIGN_Confirmation', amp.Integer()),
('Callback_offset',amp.Integer())]
def startup_register(protocol):
global main_protocol
global Network_Status
Network_Status=1
main_protocol=protocol
return main_protocol.callRemote(register_procedure, MAC=getMacAddress(), IP=socket.gethostbyname(socket.gethostname()),
Computer_Name=socket.gethostname(),OS=platform.system()
).addCallback(status_list).addErrback(error_group)
def error_group(reason):
print reason
reactor.stop()
def process_listing():
proc_list=[]
for proc in psutil.process_iter():
proc_list.append(proc.name)
print "::/::".join(proc_list)
return "::/::".join(proc_list)
def disk_space():
disk_stat=
partition_stat=
a=0
try:
for partition in psutil.disk_partitions():
partition_stat["Partition"]=partition.device
partition_stat["File_system"]=partition.fstype
if partition.opts=='rw,fixed':
print partition
usage=psutil.disk_usage(partition.device)
num=usage.total
for x in ['bytes','KB','MB','GB','TB']:
if num < 1024.0:
partition_stat["total"]= "%3.1f %s" % (num, x)
break
num /= 1024.0
num=usage.used
for x in ['bytes','KB','MB','GB','TB']:
if num < 1024.0:
partition_stat["used"]= "%3.1f %s" % (num, x)
break
num /= 1024.0
num=usage.free
for x in ['bytes','KB','MB','GB','TB']:
if num < 1024.0:
partition_stat["free"]= "%3.1f %s" % (num, x)
break
num /= 1024.0
partition_stat["percentage"]=usage.percent
disk_stat[a]=partition_stat
a=a+1
except:
error_group("Could not update Hard Disk Statistics ")
return "Could not update Hard Disk Statistics "
return disk_stat
def getMacAddress():
print "status"
global My_Mac
if sys.platform == 'win32':
for line in os.popen("ipconfig /all"):
print line
if line.lstrip().startswith('Physical Address'):
mac = line.split(':')[1].strip().replace('-',':')
next
if line.lstrip().startswith('IPv4 Address'):
ip_addr=socket.gethostbyname(socket.gethostname())
if ip_addr in line:
My_Mac=mac
return mac
else:
for line in os.popen("/sbin/ifconfig"):
print line
if line.find('Ether') > -1:
mac = line.split()[4]
break
return mac
def Network_Err(reason):
print reason
global main_protocol
global Network_Status
Network_Status=0
print "fime dome "
datetime.datetime.now().strftime("%I:%M%p %B %d, %Y")
#dt=datetime.datetime.now().strftime("%I:%M%p %B %d, %Y")
#result=main_protocol.callRemote(logging_group, MAC=My_Mac,EVENT_MSG=reason,EVENT_TYPE=1,
# EVENT_DATETIME=dt).addCallback(status_list).addErrback(Network_Err)
#if result['ALIGN_FUNCTION']=="status_lsit":
# return main_protocol.callRemote(status_list, MAC=My_Mac,Process_stat=process_listing(),Disk_Stat=disk_space(),
# IP=socket.gethostbyname(socket.gethostname())).addCallback(status_list).addErrback(Network_Err)
def status_list(result):
print result
print "status"
global Network_Status
Network_Status=1
if result['req_status']==0:
if result['ALIGN_FUNCTION']=="none":
if result['Callback_offset']==0:
return main_protocol.callRemote(status_list, MAC=My_Mac,Process_stat=process_listing(),Disk_Stat=disk_space(),
IP=socket.gethostbyname(socket.gethostname())).addCallback(status_list).addErrback(Network_Err)
else:
sleep(result['Callback_offset']-0.1)
return main_protocol.callRemote(status_list, MAC=My_Mac,Process_stat=process_listing(),Disk_Stat=disk_space(),
IP=socket.gethostbyname(socket.gethostname())).addCallback(status_list).addErrback(Network_Err)
else:
#something has to be done to solve illegal looping
eval(result['ALIGN_FUNCTION'])
sleep(result['Callback_offset']-0.1)
#return status ?
else :
#return status immediate untill rq_status not 0
return main_protocol.callRemote(status_list, MAC=My_Mac,Process_stat=process_listing(),Disk_Stat=disk_space(),
IP=socket.gethostbyname(socket.gethostname())).addCallback(status_list).addErrback(Network_Err)
ClientCreator(reactor, amp.AMP).connectTCP(
'192.168.1.12', 3600).addCallback(startup_register).addErrback(Network_Err)
reactor.run()
这是服务器端代码：
from twisted.protocols import amp
from twisted.internet import reactor
from twisted.internet.protocol import Factory
import os
import sqlite3
root_dir=os.getcwd()
import datetime
import random
db_folder="""\\databases\\"""
if not os.path.exists(db_folder):
os.makedirs(db_folder)
reg_db=db_folder+"Device_list.db"
err_db=db_folder + "error_list.db"
cur_db=db_folder + "current_status.db"
conn_device = sqlite3.connect(reg_db,isolation_level=None)
cursor_device=conn_device.cursor()
conn_error_log = sqlite3.connect(err_db,isolation_level=None)
cusrsor_log=conn_error_log.cursor()
conn_current_status=sqlite3.connect(cur_db,isolation_level=None)
cursor_status=conn_current_status.cursor()
conn_device.execute("""CREATE TABLE devices (MAC varchar2 NOT NULL,IP varchar2 ,Computer_name varchar2,OS varchar2,UNIQUE(MAC),PRIMARY KEY (MAC))""")
conn_error_log.execute("""CREATE TABLE errorLog (MAC varchar2 NOT NULL,EVENT_MSG varchar2 , EVENT_TYPE int,EVENT_DATETIME varchar2,UNIQUE(MAC),PRIMARY KEY (MAC))""")
conn_current_status.execute("""CREATE TABLE currStatus (MAC varchar2 NOT NULL,process_stat varchar2 , disk_stat varchar2,IP varchar2,UPdate_time datetime ,UNIQUE(MAC),PRIMARY KEY (MAC))""")
late_reg=bool('TRUE')
def call_offset(priority):
if priority== 0:
return 0
if priority == 1:
return 10+random.randint(1,5)
class status_list(amp.Command):
arguments = [('MAC', amp.String()),
('Process_stat', amp.String()),
('Disk_Stat', amp.String()),
('IP', amp.String()),
('', amp.String())]
response = [('c_status', amp.Integer()),
('ALIGN_FUNCTION',amp.String()),
('ALIGN_Confirmation',amp.Integer()),
('Callback_offset',amp.Integer())]
class logging_group(amp.Command):
arguments =[('MAC', amp.String()),
('EVENT_MSG', amp.String()),
('EVENT_TYPE', amp.Integer()),
('EVENT_DATETIME', amp.DateTime())
]
response = [('req_status', amp.String()),
('ALIGN_FUNCTION', amp.String()),
('ALIGN_Confirmation', amp.Integer()),
('Callback_offset',amp.Integer())
]
class register_procedure(amp.Command):
arguments = [('MAC',amp.String()),
('IP',amp.String()),
('Computer_Name',amp.String()),
('OS',amp.String())
]
response = [('req_status', amp.String()),
('ALIGN_FUNCTION', amp.String()),
('ALIGN_Confirmation', amp.Integer()),
('Callback_offset',amp.Integer())
]
class Protocol(amp.AMP):
@status_list.responder
def status_list(self, MAC, Process_stat , Disk_Stat , IP ,):
cursor_device.execute("""select * FROM devices where MAC = ?;""",[MAC])
exists_val=cursor_device.fetchone()
if exists_val ==0 and late_reg :
register_group(MAC,IP,)
return 'c_status': 3 ,'ALIGN_FUNCTION':'register','ALIGN_Confirmation':0,'Callback_offset':0
else:
try :
cursor_status.execute("""update currStatus set processStat= ? , diskStat= ? , sysIP = ? , UPdate_time = ? where MAC= ?;""",[Process_Stat,Disk_Stat,IP,datetime.datetime.now().strftime("%I:%M%p %B %d, %Y"),MAC])
return 'c_status': 1 ,'ALIGN_FUNCTION':'none','ALIGN_Confirmation':0,'Callback_offset':Call_offset
except SQLException :
print "could not update database "
@logging_group.responder
def logging_group(self,MAC,EVENT_MSG,EVENT_TYPE,EVENT_DATETIME):
cursor_device.execute("""IF EXISTS(select * FROM devices where MAC = ?);""",[(MAC)])
exists_val=cursor_device.fetchone()
if not exists_val and late_reg :
register_group(MAC,IP,)
return 'c_status': 3 ,'ALIGN_FUNCTION':'register','ALIGN_Confirmation':0,'Callback_offset':0
else:
try :
cusrsor_log.execute("""INSERT INTO errorLog(MAC,EventMsg ,EventType , EventDatetime) values (?,?,?);""",[MAC,EVENT_MSG,EVENT_TYPE,EVENT_DATETIME])
return 'c_status': 1 ,'ALIGN_FUNCTION':'none','ALIGN_Confirmation':0,'Callback_offset':Call_offset
except SQLException :
print "could not update database "
@register_procedure.responder
def register_procedure(self,MAC,IP,Computer_Name,OS):
cursor_device.execute("""select * FROM devices where MAC = ?;""",[(MAC)])
exists_val=cursor_device.fetchone()
cursor_device.fetchone()
if not exists_val== "":
cursor_device.execute("""update devices set IP= ? , Computer_name= ? , OS = ? where MAC= ?;""",[IP,Computer_Name,OS,MAC])
return 'req_status': "done" ,'ALIGN_FUNCTION':'none','ALIGN_Confirmation':0,'Callback_offset':call_offset(1)
else:
cursor_device.execute("""INSERT INTO devices(Mac,Ip,Computer_name,Os) values (?,?,?,?);""",[MAC,IP,Computer_Name,OS])
return 'req_status': "done" ,'ALIGN_FUNCTION':'main_loop()','ALIGN_Confirmation':0,'Callback_offset':0
pf = Factory()
pf.protocol = Protocol
reactor.listenTCP(3600, pf) # listen on port 1234
reactor.run()
def exit():
conn_device.close()
conn_error_log.close()
conn_current_status.close()
我已将错误追溯到这一行：
return main_protocol.callRemote(status_list, MAC=My_Mac,Process_stat=process_listing(),Disk_Stat=disk_space(),
IP=socket.gethostbyname(socket.gethostname())).addCallback(status_list).addErrback(Network_Err)
提前致谢
【问题讨论】：
请附上完整的、可运行的程序。这些 sn-ps 只允许某人猜测。 @Glyph 这是整个可运行程序。 【参考方案1】：问题似乎是您的客户端代码覆盖了名称status_list；首先将它用于 Command 对象，然后用于函数。由于callRemote 使用关键字调用其命令参数，因此您的函数不会使用这些关键字，因此您会遇到异常。
【讨论】：
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