Daniel Platz wrote: > Hi, > > I have a Python newbie question about reading data from a binary file. > I have an huge binary file from an external program. I want to read > and process the data in this file in a reasonable time. It turns out > that the reading of the data itself and the processing do not need > most of the time. However, when using the read(bytes) method Python > returns a string representing the binary information in hex. This > string I have to "cast/translate" into a number (in my case a signed > short). For this I am using the method struct.unpack from the struct > module. This unpacking part of the program takes by far the most time. > Is there a way to speed this up or to do it the unpacking more > cleverly than with the struct module? > > Thanks in advance. > > With kind regards, > > Daniel
Consider mmap Consider numpy Consider numpy+mmap -- http://mail.python.org/mailman/listinfo/python-list
