iterating over lines in a file

[Konrad Hinsen]

cjc26 at nospam.cornell.edu (Cliff Crawford) writes:

> * Remco Gerlich <scarblac-spamtrap at pino.selwerd.nl> menulis:
> | > 
> | > The easiest way:
> | > 
> | > for line in file.readlines():
> | >     block
> | 
> | But that would read the whole thing into memory, and he doesn't want that.

ScientificPython has a special class for text files which allows this:

  for line in TextFile('foo'):
     ...

It also permits the transparent handling of compressed files and URLs
(for reading only) and, under Unix, expands home directory names
(~user). I use this about everywhere where I read data from a text
file; it's nice to be able to use the most general file name notations
everywhere without much effort.

For those who don't want to install a complete package just for this
minor module: you can use it on its own perfectly well, just put the
file Scienticic/IO/TextFile.py somewhere on your PYTHONPATH.
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