Of course there is: you can tell where you are in a text file by using its tell
method, i.e. f.tell(), you can seek to a particular location in
a file using f.seek(offset), tell if a
file is open by checking its closed attribute. There is always
more...but this is enough for now*.
* If it is not enough for you, you can read more online or explore via the Python Shell, e.g.
>>> dir(f) ['__class__', '__delattr__', '__doc__', '__enter__', '__exit__', '__format__', '__getattribute__', '__hash__', '__init__', '__iter__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'close', 'closed', 'encoding', 'errors', 'fileno', 'flush', 'isatty', 'mode', 'name', 'newlines', 'next', 'read', 'readinto', 'readline', 'readlines', 'seek', 'softspace', 'tell', 'truncate', 'write', 'writelines', 'xreadlines'] >>>