Today, I was writing a program and gonna find a function to detect whether EOF, the end of file marker, was reached. But I failed. Not such function in file I/O of Python. Then I did some googling and realized that we don't need an EOF detection function. Take a look at this: http://groups.google.com/group/comp.lang.python/browse_thread/thread/ed25388487b3ac7b
If you try to read some stuff, but you get nothing, then you have reached the EOF. Stupid and simple, ah?
My program now looks like:
while True: testline = f.readline() if len(testline) ==0: break # EOF #do some other stuffAccording to Python documents, I don't think I need to do this when using
readline()function, because "Read until EOF using readline() and return a list containing the lines thus read". http://docs.python.org/lib/bltin-file-objects.html