我正在运行一个从Debian软件包中提取信息并将其保存到数据库的脚本。
在提取了大约100个软件包的信息之后，出现了一个错误。错误是“无法启动新线程”。
我为什么会遇到这个错误？有什么可能的解决方案吗？
以下是用于保存数据的代码：
for i in list_pack:
if not i in oblist:
#Creating Packages
slu=slugify(i)
ob=Gbobject()
ob.title=i
ob.slug=slu
ob.content=''
ob.tags=tagname
#with reversion.create_revision():
ob.save()
gb=Gbobject.objects.get(title=i)
gb.objecttypes.add(Objecttype.objects.get(title='Packages'))
gb.sites.add(Site.objects.get_current())
#with reversion.create_revision():
gb.save()
gd=Gbobject.objects.get(title=i)
print 'The Object created was',gd
#Decsription
try:
atv=package_description_dict[i]
atvalue=unicode(atv,'utf-8')
except UnicodeDecodeError:
pass
try:
lo=Gbobject.objects.get(title=i)
loid=NID.objects.get(id=lo.id)
except Gbobject.DoesNotExist:
pass
if atvalue<>'':
slu=slugify(atvalue)
at=Attribute()
at.title=atvalue
at.slug=slu
at.svalue=atvalue
at.subject=loid
att=Attributetype.objects.get(title='Description')
at.attributetype=att
#with reversion.create_revision():
at.save()
print 'yeloow13'
就像Description一样，这个包还有大约12个类似方式保存的属性。
这是错误发生时我得到的完整回溯：
error Traceback (most recent call last)
/home/radhika/Desktop/dev_75/gnowsys-studio/demo/<ipython console> in <module>()
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/gstudio/Harvest/debdata.py in <module>()
1086 # create_attribute_type()
1087 # create_relation_type()
-> 1088 create_objects()
1089 #create_sec_objects()
1090 #create_relations()
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/gstudio/Harvest/debdata.py in create_objects()
403 ob.sites.add(Site.objects.get_current())
404 #with reversion.create_revision():
--> 405 ob.save()
406 #time.sleep(10)
407 #gd=Gbobject.objects.get(title=i)
/usr/local/lib/python2.6/dist-packages/django_reversion-1.6.0-py2.6.egg/reversion/revisions.pyc in do_revision_context(*args, **kwargs)
298 try:
299 try:
--> 300 return func(*args, **kwargs)
301 except:
302 exception = True
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/objectapp/models.pyc in save(self, *args, **kwargs)
658 @reversion.create_revision()
659 def save(self, *args, **kwargs):
--> 660 super(Gbobject, self).save(*args, **kwargs) # Call the "real" save() method.
661
662
/usr/local/lib/python2.6/dist-packages/django_reversion-1.6.0-py2.6.egg/reversion/revisions.pyc in do_revision_context(*args, **kwargs)
298 try:
299 try:
--> 300 return func(*args, **kwargs)
301 except:
302 exception = True
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/gstudio/models.pyc in save(self, *args, **kwargs)
327 @reversion.create_revision()
328 def save(self, *args, **kwargs):
--> 329 super(Node, self).save(*args, **kwargs) # Call the "real" save() method.
330
331
/usr/local/lib/python2.6/dist-packages/django/db/models/base.pyc in save(self, force_insert, force_update, using)
458 if force_insert and force_update:
459 raise ValueError("Cannot force both insert and updating in model saving.")
--> 460 self.save_base(using=using, force_insert=force_insert, force_update=force_update)
461
462 save.alters_data = True
/usr/local/lib/python2.6/dist-packages/django/db/models/base.pyc in save_base(self, raw, cls, origin, force_insert, force_update, using)
568 if origin and not meta.auto_created:
569 signals.post_save.send(sender=origin, instance=self,
--> 570 created=(not record_exists), raw=raw, using=using)
571
572
/usr/local/lib/python2.6/dist-packages/django/dispatch/dispatcher.pyc in send(self, sender, **named)
170
171 for receiver in self._live_receivers(_make_id(sender)):
--> 172 response = receiver(signal=self, sender=sender, **named)
173 responses.append((receiver, response))
174 return responses
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/objectapp/signals.pyc in wrapper(*args, **kwargs)
65 if inspect.getmodulename(fr[1]) == 'loaddata':
66 return
---> 67 signal_handler(*args, **kwargs)
68
69 return wrapper
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/objectapp/signals.pyc in ping_external_urls_handler(sender, **kwargs)
90 from objectapp.ping import ExternalUrlsPinger
91
---> 92 ExternalUrlsPinger(gbobject)
93
94
/usr/local/lib/python2.6/dist-packages/django_gstudio-0.3.dev-py2.6.egg/objectapp/ping.pyc in __init__(self, gbobject, timeout, start_now)
153 threading.Thread.__init__(self)
154 if start_now:
--> 155 self.start()
156
157 def run(self):
/usr/lib/python2.6/threading.pyc in start(self)
472 _active_limbo_lock.release()
473 try:
--> 474 _start_new_thread(self.__bootstrap, ())
475 except Exception:
476 with _active_limbo_lock:
error: can't start new thread
我不会编写任何处理线程的代码。