Harold Fellermann a écrit : > Hi, > > I am writing an application that initializes the global namespace, and > afterwards, leaves the user with the python prompt. Now, I want to > catch NameErrors in user input like e.g. > > >>>>some_name > > Traceback (most recent call last): > File "<stdin>", line 1, in ? > NameError: name 'some_name' is not defined > > For classes, there are the __getattr__ and __getattribute__ functions. > I wonder if there is some related function for (failed) global > attribute > lookup that is invoked with name as its argument instead. > > I consulted the docs, but could not find anything. Any ideas?
http://docs.python.org/lib/module-sys.html """ excepthook( type, value, traceback) This function prints out a given traceback and exception to sys.stderr. When an exception is raised and uncaught, the interpreter calls sys.excepthook with three arguments, the exception class, exception instance, and a traceback object. In an interactive session this happens just before control is returned to the prompt; in a Python program this happens just before the program exits. The handling of such top-level exceptions can be customized by assigning another three-argument function to sys.excepthook. """ >>> import sys >>> def myhook(type, value, tb): ... print "got ", type, value, tb ... ... >>> sys.excepthook = myhook >>> toto got exceptions.NameError name 'toto' is not defined <traceback object at 0x40416694> >>> HTH -- http://mail.python.org/mailman/listinfo/python-list
