Hi,
I am pickling big graphs of data and running into this problem:
[...]
File "/usr/lib/python2.2/pickle.py", line 225, in save
f(self, object)
File "/usr/lib/python2.2/pickle.py", line 414, in save_list
save(element)
File "/usr/lib/python2.2/pickle.py", line 219, in save
self.save_reduc e(callable, arg_tup, state)
File "/usr/lib/python2.2/pickle.py", line 249, in save_reduce
save(state)
File "/usr/lib/python2.2/pickle.py", line 225, in save
f(self, object)
File "/usr/lib/python2.2/pickle.py", line 447, in save_dict
save(value)
File "/usr/lib/python2.2/pickle.py", line 219, in save
self.save_reduc e(callable, arg_tup, state)
File "/usr/lib/python2.2/pickle.py", line 245, in save_reduce
save(arg_tup)
File "/usr/lib/python2.2/pickle.py", line 225, in save
f(self, object)
File "/usr/lib/python2.2/pickle.py", line 374, in save_tuple
save(element)
File "/usr/lib/python2.2/pickle.py", line 225, in save
f(self, object)
File "/usr/lib/python2.2/pickle.py", line 405, in save_list
write(self.put( memo_len))
RuntimeError: maximum recursion depth exceeded
However, it works when i try the smallest examples and use
sys.setrecursio nlimit(4000)
This seems like a limitation in the pickling code. Yes?
The data is perhaps better off in some kind of DB designed for
massively interconnected objects. Any suggestions? ZODB ?
BTW, the data is path searching info for a game, and takes 1-2Mb of memory.
Thankyou,
Simon Burton.
1  5112 
At 11:29 AM +1100 3/11/03, Simon Burton wrote: Hi,
I am pickling big graphs of data and running into this problem:
[...]
File "/usr/lib/python2.2/pickle.py", line 225, in save
f(self, object)
File "/usr/lib/python2.2/pickle.py", line 414, in save_list
save(element)
....
File "/usr/lib/python2.2/pickle.py", line 225, in save
f(self, object)
File "/usr/lib/python2.2/pickle.py", line 405, in save_list
write(self.put( memo_len))
RuntimeError : maximum recursion depth exceeded
However, it works when i try the smallest examples and use
sys.setrecursi onlimit(4000)
This seems like a limitation in the pickling code. Yes?
I would suspect that you have a loop in your definitions, eg. A
imports B, and B imports A, particularly since you're trying small
examples, and they're still exceeding the recursion depth.
Hope that helps,
Anthony
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