how to read the last line of a huge file???

I have do some log processing which is usually huge. The length of each line is variable. How can I get the last line?? Don't tell me to use readlines or something like linecache... -- http://mail.python.org/mailman/listinfo/python-list

how to go on learning python

I'm basically a c/c++ programmer and recently come to python for some web development. Using django and javascript I'm afraid I can develop some web application now. But often I feel I'm not good at python. I don't know much about generators, descriptors and decorators(although I can use some of it