Re: passing object between classes
daved170 daved...@gmail.com wrote: Is there any existing python Log object that do so? There is. See Jean-Michel Pichavant's reply. I no, I created my own Log object that only open file and write a line to it, how can I make it be global? You could assign it to a global name. Should I use it as a static object? If you wish. It depends on exactly what you want. Usually static objects are fine for logging unless you want to be able to modify the logging in particular situations (e.g. when running your unit tests). In that case you could just assign it to an attribute of your object much as you were failing to do in your original post: there is no reason at all why that shouldn't work also. will it work? There is no reason why not. (offcurse in the case of the threads I'll use utex) With the built-in logging module you don't need to worry about that. -- Duncan Booth http://kupuguy.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: passing object between classes
daved170 daved...@gmail.com wrote: Hi everybody, I built my owen log obj as a class. I'm passing it to another object (actually to a thread). When I run my app it raise error at the line when I'm using that log obj. is there any problem with the concept of passing object as I do it? How can I do that? class A: def foo1: myLog = cLog() myYhread = cThread(myLog) myThread.start() class cThread: def __init__(self,in_myLog): sel.LogObj = in_myLog def run(): sel.LogObj.writeLine(HI) thanks Dave Please always post real code and state the exact error you get. That will maximise the chance that you get a useful answer. The code you posted will fail for numerous reasons and I can't guess whether you have a problem with indentation, a problem because you misspelled 'self' as 'sel', or because you missed out the 'self' parameter altogether on a method, or perhaps your LogObj simply doesn't have a writeLine method. -- Duncan Booth http://kupuguy.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: passing object between classes
On Sep 21, 1:44 pm, Duncan Booth duncan.bo...@invalid.invalid wrote: daved170 daved...@gmail.com wrote: Hi everybody, I built my owen log obj as a class. I'm passing it to another object (actually to a thread). When I run my app it raise error at the line when I'm using that log obj. is there any problem with the concept of passing object as I do it? How can I do that? class A: def foo1: myLog = cLog() myYhread = cThread(myLog) myThread.start() class cThread: def __init__(self,in_myLog): sel.LogObj = in_myLog def run(): sel.LogObj.writeLine(HI) thanks Dave Please always post real code and state the exact error you get. That will maximise the chance that you get a useful answer. The code you posted will fail for numerous reasons and I can't guess whether you have a problem with indentation, a problem because you misspelled 'self' as 'sel', or because you missed out the 'self' parameter altogether on a method, or perhaps your LogObj simply doesn't have a writeLine method. -- Duncan Boothhttp://kupuguy.blogspot.com- Hide quoted text - - Show quoted text - Hi Duncan, You are right, I should have put the entire code but my question was more theroretical and I know that the code that I posted won't work. Let me simplified my question, I need to be able to write to the same log file from different classes. and even more, from different threads. Is there any existing python Log object that do so? I no, I created my own Log object that only open file and write a line to it, how can I make it be global? Should I use it as a static object? will it work? (offcurse in the case of the threads I'll use utex) Thanks again, DaveD -- http://mail.python.org/mailman/listinfo/python-list
Re: passing object between classes
daved170 wrote: On Sep 21, 1:44 pm, Duncan Booth duncan.bo...@invalid.invalid wrote: daved170 daved...@gmail.com wrote: Hi everybody, I built my owen log obj as a class. I'm passing it to another object (actually to a thread). When I run my app it raise error at the line when I'm using that log obj. is there any problem with the concept of passing object as I do it? How can I do that? class A: def foo1: myLog = cLog() myYhread = cThread(myLog) myThread.start() class cThread: def __init__(self,in_myLog): sel.LogObj = in_myLog def run(): sel.LogObj.writeLine(HI) thanks Dave Please always post real code and state the exact error you get. That will maximise the chance that you get a useful answer. The code you posted will fail for numerous reasons and I can't guess whether you have a problem with indentation, a problem because you misspelled 'self' as 'sel', or because you missed out the 'self' parameter altogether on a method, or perhaps your LogObj simply doesn't have a writeLine method. -- Duncan Boothhttp://kupuguy.blogspot.com- Hide quoted text - - Show quoted text - Hi Duncan, You are right, I should have put the entire code but my question was more theroretical and I know that the code that I posted won't work. Let me simplified my question, I need to be able to write to the same log file from different classes. and even more, from different threads. Is there any existing python Log object that do so? I no, I created my own Log object that only open file and write a line to it, how can I make it be global? Should I use it as a static object? will it work? (offcurse in the case of the threads I'll use utex) Thanks again, DaveD I have a theoretical answer to your theoretical question : Use the standard python module logging for logging activities. http://docs.python.org/library/logging.html It's very powerful, standard, thread safe and time-saving. cheers, Jean-Michel -- http://mail.python.org/mailman/listinfo/python-list
