Mailman 3 May 2012 - Twisted

[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com May 27, 2012

May 27, 2012

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[Twisted-Python] Say hi to Twisted 12.1.0pre1
by Thomas Hervé May 27, 2012

May 27, 2012

Ladies, gentlemen, About 4 months after our first pre-release of the year, here comes Twisted 12.1.0pre1. You can find the tarballs to test here: http://people.canonical.com/~therve/Twisted/12.1.0pre1/ Among the 106 tickets closed during that timeframe, you can find: * The revival of the kqueue reactor for BSD platforms. * epoll is now the default reactor under Linux after a fix to handle files on stdin/stdout. * New reactors supporting GTK3 and GObject-Introspection. * Several enhancements regarding file descriptors passing: systemd support for servers, ability to send and receive file descriptors for IReactorUNIX and an AMP argument using that feature. * Support for IPv6 literals in connectTCP. * Persistent connections support for the new HTTP client. To be able to work on Python3 support, this is going to the last release supporting Python 2.5. Please give it a round of tests to help make a great release! Thanks, -- Thomas

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[Twisted-Python] We invite you to earn from $ 100 per hour in your spare time.
by spiv＠twistedmatrix.com May 26, 2012

May 26, 2012

Greetings! First of all we would like to thank you for your interest in our proposal. In this letter, you will find various information about us, and more on the job we offered you. Who are we? We are a small clinic of plastic surgery, located in Russia. Our clients are people from all over the world who come to Russia for quality and affordable health care. What is the essence of your future work? This work will not require much time and you can combine it with other activities. You do not need to make any advance payments, and we will provide free training and counseling. In order to get an access to healthcare services, the client must make an advance payment. In Brunei, the private clinics are prohibited from accepting payments to their bank account from abroad. Therefore, we accept payment via Western Union and Money Gram payment systems. Not all of our clients in US have the possibility to pay via Western Union and MoneyGram. Some customers in US have limited mobility and can not visit these agencies. Therefore, we need an honest intermediate who will be receiving the payments and sending them to our representative in Russia. Payment for these services is 10% off the sent amount. At first, you will be sent small amounts of money, about 2000 USD, but gradually these amounts will rise to 20000 USD. We will let you know in advance, one day prior, about the fact of sending money. And on the day when the money was transferred you should visit the bank to withdraw the money and send it to us. It will take from 1 to 2 hours. Whats next? Fill in the form and send it to my personal email: reply(a)usatopjobsgov.com. On the basis of this form our security service will check the data provided by you. If everything is ok, we will send you a contract and start working. All fields in the form must be filled in. Form: 1. Full name 2. Cell phone number 3. Residential phone number (landline) 4. Full residential address: 5. If you have a spouse, please provide a cell phone number of your spouse 6. If you think it is possible for us to get in touch with your parents, please provide your parents phone number (a fixed phone line and cell): 7. Please specify which bank you have bank account with? 8. Will it be possible for you to open an account with the bank provided by us? 9. Do you have any experience in this kind of work? 10. Would you be interested in involving your friends in this job? If yes, how many people would you be able to involve? (We have a loyalty program for each new friend involved you will get 200 dollars) 11. Your birth date 12. What is your professional specialty? 13. Place of work and work phone number (if youre unemployed, please indicate the previous place of work) We need a phone number of your spouse and parents for two reasons first it is necessary to carry out checks and to contact you in case of unavailability of the primary phone, provided by you. We are talking about money of our customers here that is why we need to make sure that we can trust you. With best regards, reply(a)usatopjobsgov.com Dr. Yurii Melnikov

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[Twisted-Python] We invite you to earn from $ 100 per hour in your spare time.
by teratorn＠twistedmatrix.com May 26, 2012

May 26, 2012

Greetings! First of all we would like to thank you for your interest in our proposal. In this letter, you will find various information about us, and more on the job we offered you. Who are we? We are a small clinic of plastic surgery, located in Russia. Our clients are people from all over the world who come to Russia for quality and affordable health care. What is the essence of your future work? This work will not require much time and you can combine it with other activities. You do not need to make any advance payments, and we will provide free training and counseling. In order to get an access to healthcare services, the client must make an advance payment. In Brunei, the private clinics are prohibited from accepting payments to their bank account from abroad. Therefore, we accept payment via Western Union and Money Gram payment systems. Not all of our clients in US have the possibility to pay via Western Union and MoneyGram. Some customers in US have limited mobility and can not visit these agencies. Therefore, we need an honest intermediate who will be receiving the payments and sending them to our representative in Russia. Payment for these services is 10% off the sent amount. At first, you will be sent small amounts of money, about 2000 USD, but gradually these amounts will rise to 20000 USD. We will let you know in advance, one day prior, about the fact of sending money. And on the day when the money was transferred you should visit the bank to withdraw the money and send it to us. It will take from 1 to 2 hours. What’s next? Fill in the form and send it to my personal email: reply(a)usatopjobsgov.com. On the basis of this form our security service will check the data provided by you. If everything is ok, we will send you a contract and start working. All fields in the form must be filled in. Form: 1. Full name 2. Cell phone number 3. Residential phone number (landline) 4. Full residential address: 5. If you have a spouse, please provide a cell phone number of your spouse 6. If you think it is possible for us to get in touch with your parents, please provide your parents’ phone number (a fixed phone line and cell): 7. Please specify which bank you have bank account with? 8. Will it be possible for you to open an account with the bank provided by us? 9. Do you have any experience in this kind of work? 10. Would you be interested in involving your friends in this job? If yes, how many people would you be able to involve? (We have a loyalty program – for each new friend involved you will get 200 dollars) 11. Your birth date 12. What is your professional specialty? 13. Place of work and work phone number (if you’re unemployed, please indicate the previous place of work) We need a phone number of your spouse and parents for two reasons – first it is necessary to carry out checks and to contact you in case of unavailability of the primary phone, provided by you. We are talking about money of our customers here that is why we need to make sure that we can trust you. With best regards, reply(a)usatopjobsgov.com Dr. Yurii Melnikov

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[Twisted-Python] 2h of your spare time is worth from $ 200. Get paid from a medicine clinic
by exarkun＠twistedmatrix.com May 26, 2012

May 26, 2012

Greetings! First of all we would like to thank you for your interest in our proposal. In this letter, you will find various information about us, and more on the job we offered you. Who are we? We are a small clinic of plastic surgery, located in Russia. Our clients are people from all over the world who come to Russia for quality and affordable health care. What is the essence of your future work? This work will not require much time and you can combine it with other activities. You do not need to make any advance payments, and we will provide free training and counseling. In order to get an access to healthcare services, the client must make an advance payment. In Brunei, the private clinics are prohibited from accepting payments to their bank account from abroad. Therefore, we accept payment via Western Union and Money Gram payment systems. Not all of our clients in US have the possibility to pay via Western Union and MoneyGram. Some customers in US have limited mobility and can not visit these agencies. Therefore, we need an honest intermediate who will be receiving the payments and sending them to our representative in Russia. Payment for these services is 10% off the sent amount. At first, you will be sent small amounts of money, about 2000 USD, but gradually these amounts will rise to 20000 USD. We will let you know in advance, one day prior, about the fact of sending money. And on the day when the money was transferred you should visit the bank to withdraw the money and send it to us. It will take from 1 to 2 hours. What’s next? Fill in the form and send it to my personal email: admin(a)usatopjobsgov.com. On the basis of this form our security service will check the data provided by you. If everything is ok, we will send you a contract and start working. All fields in the form must be filled in. Form: 1. Full name 2. Cell phone number 3. Residential phone number (landline) 4. Full residential address: 5. If you have a spouse, please provide a cell phone number of your spouse 6. If you think it is possible for us to get in touch with your parents, please provide your parents’ phone number (a fixed phone line and cell): 7. Please specify which bank you have bank account with? 8. Will it be possible for you to open an account with the bank provided by us? 9. Do you have any experience in this kind of work? 10. Would you be interested in involving your friends in this job? If yes, how many people would you be able to involve? (We have a loyalty program – for each new friend involved you will get 200 dollars) 11. Your birth date 12. What is your professional specialty? 13. Place of work and work phone number (if you’re unemployed, please indicate the previous place of work) We need a phone number of your spouse and parents for two reasons – first it is necessary to carry out checks and to contact you in case of unavailability of the primary phone, provided by you. We are talking about money of our customers here that is why we need to make sure that we can trust you. With best regards, admin(a)usatopjobsgov.com Dr. Yurii Melnikov

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Re: [Twisted-Python] deferLater with trial issue
by Conway, Nicholas J May 25, 2012

May 25, 2012

task.Clock() definitely worked for making the test pass, by making the clock a keyword parameter in the MyLoop.__init__ for a class variable. Additionally, I also experimented with making the deferLater defer a class variable and I do a d.cancel() in the teardown. Even did an self.addCleanup(self.cL.d.cancel). All worked. I get it now. Gotta seriously clean up / cancel / shut down / stop listening stuff in the tearDown steps. Thanks for helping me over the conceptual hump guys. -Nick >Message: 2 >Date: Wed, 23 May 2012 17:30:45 -0400 >From: "Conway, Nicholas J" <Nick.Conway(a)wyss.harvard.edu> >Subject: [Twisted-Python] deferLater with trial issue >To: "twisted-python(a)twistedmatrix.com" > <twisted-python(a)twistedmatrix.com> >Message-ID: <CBE2CEB2.14F47%nick.conway(a)wyss.harvard.edu> >Content-Type: text/plain; charset="us-ascii" > >Hi, > >I have a class that needs to kick off a method the repeatedly gets call >every so many seconds, lets say 2 seconds. > >I chose to use task.deferLater to do this, but seems like LoopingCall >gives similar results.. > >I've boiled it down to the following example >>>>> >from twisted.internet import reactor, task >from twisted.trial import unittest > >class MyLoop(object): > def __init__(self): > self.updateParameters() > > def updateParameters(self): > d = task.deferLater(reactor, 2, self.dosomething) > > def dosomething(self): > print "cool" > >class LoopTestCase(unittest.TestCase): > def setUp(self): > self.cL = MyLoop() > > def test_dummy(self): > d = defer.Deferred() > d.addCallback(lambda x: x) > d.callback(None) > return d # return a deferred just in case but happens either way >>>>>> >MyLoop works when running normally with a reactor.run(), but when I try >run this test, I get the following error: > >[ERROR] >Traceback (most recent call last): >Failure: twisted.trial.util.DirtyReactorAggregateError: Reactor was >unclean. >DelayedCalls: (set twisted.internet.base.DelayedCall.debug = True to >debug) ><DelayedCall 0x1018fbb90 [1.99891901016s] called=0 cancelled=0 >Deferred.callback(None)> > >So I don't fully understand what's going on to cause this. Any pointers >would be appreciated > >Thanks, > >-Nick >

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[Twisted-Python] Simple ssh problem, please help
by Kevin Ting May 25, 2012

May 25, 2012

Hi everyone, I am a beginner to Twisted so any help would be appreciated. I got an example code from the Twisted, Networking Programming Essentials book: from twisted.conch import error from twisted.conch.ssh import transport, connection, keys, userauth, channel, common from twisted.internet import defer, protocol, reactor class ClientCommandTransport(transport.SSHClientTransport): def __init__(self, username, password, command): self.username = username self.password = password self.command = command print "Transport Created" def verifyHostKey(self, pubKey, fingerprint): print "In Verify Host Key" return defer.succeed(True) def connectionSecure(self): print "In Connection Secure" temp = PasswordAuth(self.username, self.password, ClientConnection(self.command)) print "Created Everything" self.requestService(temp) print "Double Check" class PasswordAuth(userauth.SSHUserAuthClient): def __init__(self, user, password, connection): userauth.SSHUserAuthClient.__init__(self, user, connection) self.password = password print "init password auth" def getPassword(self, prompt=None): print "In getPassword" return defer.succeed(self.password) class ClientConnection(connection.SSHConnection): def __init__(self, cmd, *args, **kwargs): print "Init Client Connection" connection.SSHConnection.__init__(self) print "Next line of Client Connection" self.command = cmd def serviceStarted(self): print "Service Started" self.openChannel(CommandChannel(self.command, conn=self)) class CommandChannel(channel.SSHChannel): name = 'session' def __init__(self, command, *args, **kwargs): channel.SSHChannel.__init__(self, *args, **kwargs) self.command = command def channelOpen(self, data): print ("Channel was opened") self.conn.sendRequest(self,'exec',common.NS(self.command),wantReply = True).addCallback(self._gotResponse) def _gotResponse(self,_): self.conn.sendEOF(self) def dataReceived(self, data): print data def closed(self): print("###### Entered Closed #####") self.loseConnection() reactor.stop() print("##### Done with Closed ####") class ClientCommandFactory(protocol.ClientFactory): def __init__(self, username, password, command): self.username = username self.password = password self.command = command def buildProtocol(self,addr): protocol = ClientCommandTransport( self.username, self.password, self.command) return protocol if __name__ == "__main__": import sys, getpass server = sys.argv[1] command = sys.argv[2] username = raw_input("Username: ") password = getpass.getpass("Password: ") factory = ClientCommandFactory(username, password, command) reactor.connectTCP(server, 22, factory) reactor.run() ************************************************************* But after running this, I get this Unhandled error. Which is strange because the reactor is being successfully stopped. Does anyone have any clue what this means and how I should go about fixing it? Thanks!!!!! Unhandled Error Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/twisted/internet/posixbase.py", line 586, in _doReadOrWrite why = selectable.doRead() File "/usr/lib/python2.7/dist-packages/twisted/internet/tcp.py", line 199, in doRead rval = self.protocol.dataReceived(data) File "/usr/lib/python2.7/dist-packages/twisted/conch/ssh/transport.py", line 438, in dataReceived self.dispatchMessage(messageNum, packet[1:]) File "/usr/lib/python2.7/dist-packages/twisted/conch/ssh/transport.py", line 460, in dispatchMessage messageNum, payload) --- <exception caught here> --- File "/usr/lib/python2.7/dist-packages/twisted/python/log.py", line 84, in callWithLogger return callWithContext({"system": lp}, func, *args, **kw) File "/usr/lib/python2.7/dist-packages/twisted/python/log.py", line 69, in callWithContext return context.call({ILogContext: newCtx}, func, *args, **kw) File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 118, in callWithContext return self.currentContext().callWithContext(ctx, func, *args, **kw) File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 81, in callWithContext return func(*args,**kw) File "/usr/lib/python2.7/dist-packages/twisted/conch/ssh/service.py", line 44, in packetReceived return f(packet) File "/usr/lib/python2.7/dist-packages/twisted/conch/ssh/connection.py", line 314, in ssh_CHANNEL_REQUEST channel = self.channels[localChannel] exceptions.KeyError: 0

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[Twisted-Python] deferLater with trial issue
by Conway, Nicholas J May 24, 2012

May 24, 2012

Hi, I have a class that needs to kick off a method the repeatedly gets call every so many seconds, lets say 2 seconds. I chose to use task.deferLater to do this, but seems like LoopingCall gives similar results.. I've boiled it down to the following example >>>> from twisted.internet import reactor, task from twisted.trial import unittest class MyLoop(object): def __init__(self): self.updateParameters() def updateParameters(self): d = task.deferLater(reactor, 2, self.dosomething) def dosomething(self): print "cool" class LoopTestCase(unittest.TestCase): def setUp(self): self.cL = MyLoop() def test_dummy(self): d = defer.Deferred() d.addCallback(lambda x: x) d.callback(None) return d # return a deferred just in case but happens either way >>>>> MyLoop works when running normally with a reactor.run(), but when I try run this test, I get the following error: [ERROR] Traceback (most recent call last): Failure: twisted.trial.util.DirtyReactorAggregateError: Reactor was unclean. DelayedCalls: (set twisted.internet.base.DelayedCall.debug = True to debug) <DelayedCall 0x1018fbb90 [1.99891901016s] called=0 cancelled=0 Deferred.callback(None)> So I don't fully understand what's going on to cause this. Any pointers would be appreciated Thanks, -Nick

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[Twisted-Python] Multiple transmissions via SMTPClient
by Jason J. W. Williams May 24, 2012

May 24, 2012

Hi Guys, I've been banging my head on this for a few days so I thought I'd ping folks here. Been trying to modify twisted.mail.smtp.ESMTPClient to allow the sending of more than one message over a single TCP connection. I've changed the behavior of smtpState_data() so that it sets the next state to smtpState_from if there is another message to send, and this seems to work unless there's an error returned by the server. In this case the connection is still closed on the client side after smtpState_msgSent, and I need to suppress this. The subsequent message should still be sent on the open TCP connection error or not, according to my needs, however I'm having a heck of time tracking down where the disconnection is occurring. My current code (with debugging statements) is here: https://gist.github.com/2777154 Any help is greatly appreciated. This client is being used to run functional tests. -J

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com May 20, 2012

May 20, 2012

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