[Tutor] slow html generation code

[Sean Perry]

Luis N wrote:
> This code seems a little slow, is there anything in particular that
> jumps out as being not quite right.
> 
> The idea is that a file is opened that contains path names to other
> files, that are appended and outputed into a directory of choice.
> 
> I plan to move this off the filesystem into a database when the
> concept is worked out, maybe that will help.
> 

You are reading entire file contents into memory. Once with 
f.readlines() and then again with structure.read(). If these are 
somewhat large files that could definitely be a place for slowness. If 
nothing else, Python promises garbage collection to be done, but not 
when. So many of your files could be sitting in memory.