stdio EOF ?
Erik Max Francis
max at alcyone.com
Fri Aug 9 21:25:03 CEST 2002
Jacek Generowicz wrote:
> Using "for line is stdin: ..." works if all the commands are in a file
> and I do
> cat command_file | filter.py | etc
> but in the "cat | filter.py" situation, it doesn't produce any output
> until C-d is sent.
> I guess I'm looking for a "while something(stdin)" or "while
> stdin.something" construct ...
The standard idiom for this is:
line = file.readline()
if not line:
The .readline method of a file object returns a complete line (including
the trailing newline), or an empty string in the case of EOF.
Erik Max Francis / max at alcyone.com / http://www.alcyone.com/max/
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