QIO - Quick I/O module for Python (for fast reading)

[Markus Fleck]

QIO

The QIO module borrows a few tricks from INN and adds some of its own to
make common Python file operations way lots more faster and stuff. It is
suitable for reading sockets and large text files; it doesn't support
writing.

Because of the read-ahead buffering, QIO will work best with sequential
access. For compatibility's sake it will handle slurping a whole file in one
read() and doing random access, but the optimizations can actually work
against you in those cases.

The readline*() methods include some enhancements over stock file objects:

   * You can specify a custom line terminator if '\n' isn't what you want.
   * Line terminators are optionally trimmed. (To find eof when trimming is
     enabled, you look for None instead of "")
   * A magic trim=2 argument makes quick work of "lines and dots" protocols
     like SMTP, NNTP and gopher, handling double-dots and CRLF shenanigans
     so you can use something like `message=s.readines()' to grab a mail
     message off the wire in one step

To show how the trim=2 thingy works, a modified version of Python's
nntplib.py is included.

Since this module is derived from a piece of INN, it carries the same
license (which is BSDish). See the package for details.

Where to get it:

Right here:

  http://members.xoom.com/_XOOM/meowing/python/index.html

It's available in gzip'd tar form (21K) and as a ZIP file (19K).
Documentation is included.

<P><A HREF="http://members.xoom.com/_XOOM/meowing/python/index.html">QIO
module</A> - faster version of <CODE>readline()</CODE> file operation
(derived from INN news server code), with read-ahead buffering.  (16-Sep-99)

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