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The Troubleshooting section provides various hints and tips when you can't get things to work as expected. The Specific issues section at the end contains more detailed discussion of specific issues you may encounter: Pyro provides some powerful debugging possibilities also see Dealing with Exceptions : Providing the remote exception traceback the actual error that occurred in the Pyro object as an attribute on the local exception object.
You can print this using the util. Printing a very detailed traceback, including the names and values of current local variables at the moment of the exception. This one is disabled by default La Neige Au Sahara (Faço Chover No Deserto) - Tony Carreira - Nos Fiançailles, France / Portugal of security reasons.
You can set a custom excepthook in sys. The hook is provided as Pyro. What error occurs where and when? It usually has a detailed error description in the args attribute. That is a tuple of one or two elements. The first element is the error string such as "name not found" and the second if present is the offending name. See below in the table.
Also, the startup code in configuration. This usually means that the required network port socket is temporarily unavailable because another Pyro daemon is already running on it. Use python -m Pyro. Please read the "Features and Guidelines" chapter. Sometimes you may encounter a problem with connecting to your Pyro server over the network, and Pyro complains that it cannot connect to your server.
If you see some complaints about ' What is happening? Pyro has connected the server to This means that the server is not accessible from anything but the local host. Pyro code on a different host can never make a connection to this server because even if it obtains an URI from the server, the address in it will be It then tries to connect to the server on the local host, but that won't work for obvious reasons.
Why is this happening? You may have told Pyro to use the loopback address yourself, by setting the hostname to bind on to 'localhost' or ' That is fine as long as you're only running stuff on this single host, but if external machines try to connect to it it will fail. The other explanation is that the hostname Pyro uses to bind the server on, resolves via DNS to the IP address of the loopback adapter Make Love Work - Dolly Parton - Make Love Work / Two Lovers a few Linux distributions are set up like this unfortunately, where the hostname of your computer resolves to When Pyro tries to bind the server to a network adapter, it is then likely it ends up with What can I do about it?
You can use an explicit 'host' parameter when creating the Daemon, if for instance you want to define it in your own config file. Problems with user defined exception classes In Python 2. Say you have a custom Broken Glass - Cyndi Lauper - Hat Full Of Stars (Minidisc, Album) class written as follows:. If you are passing these exceptions over the wire in Pyro method calls, you will find that your program crashes with an error like this:.
This is not Pyro's fault: it is caused by a change in the Exception classes which was introduced in Python 2. This change seems to cause that Exception objects don't follow the usual pickle protocol. If you don't need any special behavior of your own exception objects, it is probably best to just subclass them from Exception and not define any custom methods or properties.
That avoids the problem as well. All builtin exceptions should accept a string argument to be used as the exception message, so there is no need to subclass the exception and add custom behavior as shown above, if you just want to remember a message string.
You tried to get a protocol adapter for an unsupported protocol. Currently only the 'PYRO' protocol is supported. An incoming message used compression, which this Pyro setup doesn't support most likely you don't have the zlib module. War On Error - Pyro - The Modules EP method call for an unknown object i. The Pyro server cannot import the Python module XYZ that contains the code for an object that was passed in a remote call. If you don't use mobile code, the Pyro server must have all.
Either a client tried to submit code to a server that hasn't enabled mobile code, or the server had enabled mobile code but the codeValidator refused to accept it. The Pyro server has too many connections at this time so your request for another connection was denied. The daemon can't set up the network port socketprobably because another daemon is already running, or another process occupies the resource. War On Error - Pyro - The Modules EP a little while and try again sometimes it takes a while for resources to become available again.
If this doesn't work, find the other daemon that is probably running and shut it down, or specify another port for the new daemon. Sorry, but your new process can't yet use the daemon of another running process - perhaps in a future Pyro version.
Perhaps you don't have permission to write in those locations. Fix those locations by changing the configuration items. Make sure you have permission to write to those locations. The Pyro Name Server is not running or it can't be discovered automatically. The latter may be War On Error - Pyro - The Modules EP case if your network doesn't support broadcasts or if the NS is running on a different subnet that cannot be reached by a broadcast.
Start the NS if it's not running. If the problem persists, you have to help the NameServerLocator by specifying the Country Fool - Various - Rhythm & Blues Classics Volume Two and perhaps even the port number where the NS is running.
Log has warning about local address Look at the specific issues at the bottom for a discussion about this problem. Make sure that the client accesses the correct Name Server the one that the server used to register the objectespecially if you're running multiple NS.
Also make sure that the client uses the correct URI. Check if there is an environment variable that overrules your config file, or perhaps even a setting in your code. Make sure your Daemon is running in multithreaded mode. Also consider using Oneway invocations or the Event Server. Remove any nonpickleable objects. You need at least Python 2. Otherwise the pickle protocol datastream is incompatible.
Remove these files. If not, your source has a true syntax error in it, try to import it standalone and see if it works. When you import other modules from your mobile object, you have to War On Error - Pyro - The Modules EP the fully qualified module name. Using a package local module War On Error - Pyro - The Modules EP doesn't work.
See the agent3 example. Trouble using Micks A Hippie Burning - Big Audio Dynamite - Megatop Phoenix.
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