Thanks for the suggestion, but I don't think that can be it. At least, it's not it on the line you specified. That form, with the target name given as a hard-coded string, is in use in every Python script our company uses. So, set_target() is expecting a file instead of a file name, there must be some implicit conversion going on that creates a file object of the given name before setting the log target to the file.
On the other hand, it would certainly explain the " 'Unicode' object does not have attribute 'write' " message. A file object would be expected to have an attribute named 'write', while a string object wouldn't. The error happens after the target is changed to a file name contained in a variable. Why doesn't that implicit conversion work with a string contained in a variable? Do I have to do an explicit cast of some kind? Or, probably better, I should probably look up how to create a file object so I can pass it in to the set_target() function. That's one reason I asked for documentation on log4py: so I could see what methods are available, and what arguments they actually expect. Thanks again! RobR -----Original Message----- From: Python-list [mailto:python-list-bounces+rob.richardson=rad-con....@python.org] On Behalf Of MRAB Sent: Thursday, December 13, 2012 2:35 PM To: python-list@python.org Subject: Re: log4py confusion On 2012-12-13 18:58, Rob Richardson wrote: > Greetings! > > I have finally gotten fed up with all of the Python scripts used in my > company that have every parameter hard-coded. I am rewriting one of > them to read all of its parameters from an XML file. Then, we can > change the XML file to control which database it is using, whether its > running in debug mode or not, and various other things. One of the > parameters I want the XML file to contain is the name of the script's > log file. > > I have a class named Settings that will contain all the parameters > read from the XML file. But if something goes wrong, I want to log > it. So, I want to have a Logger object for it to use. I use a > hard-coded file name for that. Then, after reading the XML file, I > want to create a second Logger object that will be used by the rest of the > script. > > When I try to use the second Logger object, I get an exception > complaining that 'unicode' object has no attribute 'write'. > > The script and the exception messages are below. Can anyone see what > I'm doing wrong? > [snip] I think the problem might be that it's expecting a file object, not a file name/path as you have here: TempLogger.set_target("TaskToCrane_logging_base.log") -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
