Execute commands from file

[Douglas Woodrow]

On Fri, 18 May 2007 04:45:30, Dennis Lee Bieber <wlfraed at ix.netcom.com> 
wrote
>On 17 May 2007 13:12:10 -0700, i3dmaster <i3dmaster at gmail.com> declaimed
>the following in comp.lang.python:
>
>> 'b' is generally useful on systems that don't treat binary and text
>> files differently. It will improve portability.
>
>       "b" is needed for binary files on systems that /do/ treat binary
>differently from text. And it does add to portability only in that it
>has no effect on those that treat all files the same.
>
>       However, as I recall the thread, the intent is to process text lines
>from a file -- and using "b" is going to affect how the line endings are
>being treated.

Yes that was my understanding too, Dennis, and the reason I queried it 
in the first place.  I had to remove the "b" option in order to get the 
sample code to work under Windows, because the standard line termination 
under Windows is carriage return + linefeed (\r\n).

Of course if I manually edit the command file so that it only has a 
linefeed character at the end of each line, the binary mode works.

So I think i3dmaster's method is only portable as long as the command 
file is created with unix-style line termination.

-- 
Doug Woodrow