"for line in fd" twice
Jack Diederich
jack at performancedrivers.com
Tue Jun 3 11:53:47 EDT 2003
On Tue, Jun 03, 2003 at 05:24:16PM +0200, Thomas Güttler wrote:
> the following does not work:
>
> fd=open(file)
> for line in fd:
> if line.startswith("mymark"):
> break
> for line in fd:
> #Read lines after "mymark"
>
> It works with the old way:
>
> while 1:
> line=fd.readline()
> if not line:
> break
The part
for (line) in fd:
will make a temporary list of all the lines in fd before it starts iterating.
so by the time you get to the second for() loop the file has been exhausted.
-jack
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