and then on startup read from tmp_file if status_file does not exist.
But this seems awkward.
It also violates your requirement -- since the crash could take
place with a partial temp file.
Can you explain why?
My thinking was if crash took place when writing the temp file this
Windows doesn't suppport atomic renames if the right side exists. I
suggest that you implement two code paths:
if os.name == posix:
rename = os.rename
else:
def rename(a, b):
try:
os.rename(a, b)
except OSError, e:
if e.errno != 183:
What are you keeping in this status file that needs to be saved
several times per second? Depending on what type of state you're
storing and how persistent it needs to be, there may be a better way
to store it.
Michael
This is for a threaded web crawler. I want to cache what URL's are
My current implementation works fine below a few hundred threads. But each
thread takes up a lot of memory so does not scale well.
I have been looking at Erlang for that reason, but found it is missing useful
libraries in other areas.
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that example is excellent - best use of asynchat I have seen so far.
I read through the python-dev archives and found the fundamental problem is no
one maintains asnycore / asynchat.
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thanks Jérôme.
Closest I have found is pyinstaller added support for cross-compiling a year
ago by mounting a Windows partition on Linux:
https://groups.google.com/forum/?fromgroups#!topic/pyinstaller/KISZP5sHCWg
But it was not stable so will be removed:
I want to download content asynchronously. This would be straightforward to do
threaded or across processes, but difficult asynchronously so people seem to
rely on external libraries (twisted / gevent / eventlet).
(I would use gevent under different circumstances, but currently need to stick
