Re: 3rd party client applications accessing pylons model over a local network
What do you mean when you say importing a slightly modifed model on each
client machine? How different is it and why?
I had to change the binding in the model file, so originally it read:
Session = scoped_session(sessionmaker(autoflush=True, transactional=True,
bind=config['pylons.app_globals'].sa_engine))
Now it reads:
engine = create_engine('sqlite:///C:/ark/data/project.db')
Session = scoped_session(sessionmaker(autoflush=True, transactional=True,
bind=engine))
(I'm testing the database on a local drive atm).
I'll look into using MySQL, the idea of transferring db's terrifies me
somewhat, but I'm sure I'll get there :).
Jules
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Re: 3rd party client applications accessing pylons model over a local network
The main differences I've seen with MySQL compared to SQLite off the top of my head are: - Rigid column lengths (SQLite stores long values; MySQL truncates them with a warning) - Different date handling functions (you'll need if-blocks in your code; e.g., if engine.name==mysql) - Different autoincrement policy (not really an issue) - String comparisons are case insensitive (though I think SQLite's LIKE is case-insensitive) Thanks Mike, much appreciated. I've found the rigid column lengths one, but so far so good the models been recreated in MySQL with a few minor tweaks, and I've been able to import the dumped data from SQlite, so wasn't as painful as I was expecting. Thanks very much for yours and everyone else's input --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Re: 3rd party client applications accessing pylons model over a local network
Is there some reason you can't connect to the database remotely? That's the most efficient way. Hi Mike, Yes, I've kind of found that trying to do stuff through JSON is not really going to hack it. As it's an Intranet I'm currently installing sqlalchemy and importing a slightly modifed model on each client machine and connecting directly to the DB over the local network (it's an SQlite db) by changing the bind to create_engine. However (and this may be wrong / a stupid question) does doing it this way have issues with concurrent access to the DB? I.e is it pylons / paste server that keeps everything thread safe, or sql alchemy [and therefore ok to do this]? Apologies if I've used the wrong terminology, learning as I go :). Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Re: Adjacency list problem [sqlachemy]
Will do, thanks. On Thu, Aug 13, 2009 at 2:00 AM, Chris Miles miles.ch...@gmail.com wrote: I recommend asking on the SQLALchemy list. There'll be a much greater expertise available there to help you out. Cheers Chris --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Time out beaker session?
Hi All, Is it possible to make the beaker session time out / delete itself after a period of inactivity? I'd like it so that when a user doesn't use the site for x amount of time the session is deleted, forcing the user to re log in [user name is stored in the session]. Many thanks, Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
waitfor it and pylons debugger, WAS: Running a program without waiting for it to finish
Hi Ian, I didn't notice this thread first time around, but you might find WaitForIt (http://pythonpaste.org/waitforit/) helpful for cases like these; you could write the code as blocking and let WaitForIt deal with the long-running aspect. (Assuming it runs for a long time, but eventually finishes -- if you need to interact with it over time you should stuff the process object in a module global) Thanks, this does indeed look like just the ticket. However I'm struggling to get this to work with Pylons correctly, specifically it seems to interfere with the debugger in the way that I have it set up [which is probably wrong]. To set it up I came across a post (http://www.mail-archive.com/paste-us...@pythonpaste.org/msg00213.html) on the paste mailing list which contained the following info: --- so then I tried to use waitforit with pylons, so I made a new pylons app and added this to my test.ini file: [app:main] use = config:development.ini filter-with = slow [filter:slow] use=egg:waitforit time_limit=2 poll_time=1 --- I don't think I even use test.ini, so I modded my development.ini file to look like this: snip [app:main] use = egg:ark full_stack = true cache_dir = %(here)s/data beaker.session.key = ark beaker.session.secret = somesecret sqlalchemy.default.url = sqlite:///%(here)s/data/project.db *filter-with = slow *[filter:slow] *use=egg:waitforit *time_limit=2 *poll_time=1 /snip With the * lines being the new additions [minus the asterisk of course]. This does work, and I can use the wait for it message etc, however if the pylons debugger needs to kick in it's now broken, with the following errors: Traceback (most recent call last): File c:\python26\lib\site-packages\paste-1.7.2-py2.6.egg\paste\evalexception\mid dleware.py, line 82, in simplecatcher_app return application(environ, start_response) File c:\python26\lib\site-packages\paste-1.7.2-py2.6.egg\paste\httpexceptions.py , line 636, in __call__ return self.application(environ, start_response) File c:\python26\lib\site-packages\paste-1.7.2-py2.6.egg\paste\evalexception\mid dleware.py, line 117, in application res = func(*args, **form.mixed()) File c:\python26\lib\site-packages\paste-1.7.2-py2.6.egg\paste\evalexception\mid dleware.py, line 140, in debug_info_replacement debugcount = int(debugcount) TypeError: int() argument must be a string or a number, not 'list' Any help on how to stop this? Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
RE: Running a program without waiting for it to finish
I need my app to be able to compile and run a performance test. then gather the results and display the results in a relevant way. the tests are written in autoHotKey which is a windows scripting program. so to run a test all i need to do is call the file from the command line. snip This does start the test running, but the page does not finish loading until the tests have finished. the tests themselves can call back to the pylons app to record cpu and memory metrics. I guess there must be a NO_WAIT flag or something i can put in to achieve my goal. This page (http://docs.python.org/library/subprocess.html) suggests pid = Popen([/bin/mycmd, myarg]).pid Hey Toby [or anyone else], did you ever get anywhere with this? We're in a similar situation where we have an intranet app that needs to fire off an external app, collect some information and deliver the info back to the user. Does anyone have any simple pointers for how to start this as a separate process but retain some communication with pylons? For example, having a page update based on the status of the requested action etc? Can you repeatedly call a controller somehow [so it can check how things are going and update the page accordingly]. Any help appreciated. Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
RE: Problem with pylons install on win XP 32
You should work with Python 2.5, or maybe you could use 0.9.7rc Not really an option, we're tied into 2.6 [64 bit windows - nice :P] because that's the version the 3d app we use predominantly here uses. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
RE: Problem with pylons install on win XP 32
Hi All, I've been trying to get pylons up and running on a win 32bit XP box under python 2.6.1. Easy install worked up until the json errors, I then manually installed the rest of the dependancies. JSON I ran without speedups, and therefore bypassed the failure to install. snip It was down to using the recommended paste dependencies, updated to newer versions and all is well. Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Problem with pylons install on win XP 32
Hi All,
I've been trying to get pylons up and running on a win 32bit XP box under
python 2.6.1. Easy install worked up until the json errors, I then manually
installed the rest of the dependancies. JSON I ran without speedups, and
therefore bypassed the failure to install.
When I try and setup a project paster dies on me with the following
traceback:
C:\paster create -t pylons ark
Traceback (most recent call last):
File c:\python26\scripts\paster-script.py, line 8, in module
load_entry_point('pastescript==1.3.6', 'console_scripts', 'paster')()
File
c:\python26\lib\site-packages\pastescript-1.3.6-py2.6.egg\paste\script\comm
and.py, line 77, in run
command = commands[command_name].load()
File build\bdist.win32\egg\pkg_resources.py, line 1913, in load
File
c:\python26\lib\site-packages\pastescript-1.3.6-py2.6.egg\paste\script\crea
te_distro.py, line 8, in module
import copydir
File
c:\python26\lib\site-packages\pastescript-1.3.6-py2.6.egg\paste\script\copy
dir.py, line 384, in module
class LaxTemplate(string.Template):
File C:\Python26\lib\string.py, line 119, in __init__
cls.pattern = _re.compile(pattern, _re.IGNORECASE | _re.VERBOSE)
File C:\Python26\lib\re.py, line 188, in compile
return _compile(pattern, flags)
File C:\Python26\lib\re.py, line 236, in _compile
raise ValueError('Cannot process flags argument with a compiled
pattern')
ValueError: Cannot process flags argument with a compiled pattern
Any pointers into why this is occurring would be much appreciated.
Jules
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[no subject]
Hi All, I'm building an intranet based office management 'thing'. It has a lot to do with automating project setup, folder creation, various start up scripts etc. One snag that I've hit is I seem unable to access mako template files that are outside of the pylons project. For example % path=os.path.join(g.work_path, c.shotOb.project.client.client, c.shotOb.project.name, '_ark','utils.mako') shot_spec_utils = local.get_namespace(path) % Results in: class 'mako.exceptions.TemplateLookupException': Cant locate template for uri '//jules-pc/work_temp\client\project\_ark\utils.mako Which as a path is correct. I'm guessing it doesn't work because it's trying to find the path from within the templates folders of the pylons project, for example, changing path to 'path='/clients/client.mako' [which is inside the templates folder] is fine - is there any way to make mako understand an 'absolute' path? I'm trying to do this as each project is likely to have its own set of specific pages, and It makes a lot of sense to be able to tie these pages in with the on disk file structure of the project [which is outside of the pylons project, and certainly doesn't want to be inside the templates folder of the pylons app :)]. If anyone has any alternative ideas for this, I'd be well up for hearing them. Many thanks, Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Forcing mako to access templates outside of the pylon app?
apologies for the repost, accidentally omitted a subject line previously Hi All, I'm building an intranet based office management 'thing'. It has a lot to do with automating project setup, folder creation, various start up scripts etc. One snag that I've hit is I seem unable to access mako template files that are outside of the pylons project. For example % path=os.path.join(g.work_path, c.shotOb.project.client.client, c.shotOb.project.name, '_ark','utils.mako') shot_spec_utils = local.get_namespace(path) % Results in: class 'mako.exceptions.TemplateLookupException': Cant locate template for uri '//jules-pc/work_temp\client\project\_ark\utils.mako Which as a path is correct. I'm guessing it doesn't work because it's trying to find the path from within the templates folders of the pylons project, for example, changing path to 'path='/clients/client.mako' [which is inside the templates folder] is fine - is there any way to make mako understand an 'absolute' path? I'm trying to do this as each project is likely to have its own set of specific pages, and It makes a lot of sense to be able to tie these pages in with the on disk file structure of the project [which is outside of the pylons project, and certainly doesn't want to be inside the templates folder of the pylons app :)]. If anyone has any alternative ideas for this, I'd be well up for hearing them. Many thanks, Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
RE: newb: Correct way to set a SQLalchemy 'relation'
Hi Dalius,
Thanks for getting back to me.
Never seen it done this way. Even if it works it does not look correct
way. It looks hard to understand and in some sense it is unpythonic -
other developers will have hard time to understand it. Just look at
pylons tutorials how it is done.
I have checked the docs, and I can't find a specific example where a controller
is explicitly trying to set a class attribute that is a foreign key:
mapper(ArkClient, clients_table, properties={
'contacts':relation(ArkContact, backref='client', cascade=all, delete),
'projects':relation(ArkProject, backref=backref('client'), cascade=all,
delete, delete-orphan)
})
Ie. Setting ArkClient.contacts or ArkCLient.projects
As before, currently doing the following:
contact.client=Session.query(ArkClient).filter(ArkClient.client=='clientName').first()
The 'clientName' string is passed through via request.POST. If anyone has links
to examples of how this is done better that would be much appreciated.
Many thanks,
Jules
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RE: newb: Correct way to set a SQLalchemy 'relation'
Hey Dalius, contact.client=Session.query(ArkClient).filter(ArkClient.client=='clien tName').first() I'd expect something like: contact.client=Session.query(ArkClient).filter(ArkClient.client.name==' clientName').first() I just find it very strange how you use SQLAlchemy: Table, class and mapper mixed into one class (ArkContact). While ArkClient mapper seems to be correct. As well it looks very strange that ArkClient has backref and you define client in ArkContact again and in addition with backref. It is enough to define this relation in one mapper. Yes, apologies - I've changed from declarative to the more 'traditional' [separate table / class / mapper] route since my first post, I should have clarified that. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
RE: Pylons and Python 2.6 (Was: Re: go-pylons.py broken on Python 2.6 in Windows?)
I'm running Pylons 9.6 under vista 64bit on Python 2.6 64bit. To say it has been a mission to get it working is somewhat of an understatement. Setuptools / easy install is broken under 64bit windows - the exe files it ships with are 32bit and therefore spit blood when trying to execute [i.e. easy_install.exe does not work]. In the end I hacked dist_utils [as this wasn't finding the correct compiler] and relied on this and manually building and installing from source, pylons and it's dependencies. Next problem was that paste.exe suffers from the same problems, I'm having to directly run paster_script.py which functions in exactly the same way [same commands and switches etc]. -Original Message- From: pylons-discuss@googlegroups.com [mailto:pylons- [EMAIL PROTECTED] On Behalf Of Eric Ongerth Sent: 18 November 2008 07:35 To: pylons-discuss Subject: Re: Pylons and Python 2.6 (Was: Re: go-pylons.py broken on Python 2.6 in Windows?) Correction: the point at which easy_installing Pylons errored out was during the installation of simpleJSON. So it never reached the point of installing paste, pastescript, pastedeploy etc. Hey, I thought Python 2.6 includes the former simpleJSON as the new json module. No? On Nov 17, 10:31 pm, Eric Ongerth [EMAIL PROTECTED] wrote: Neither Pylons nor Paste install correctly at this time on the Win32 platform using easy_install, whether in a virtualenv or even in a system-wide install to a clean system. Just about everything goes fine until somewhere in the installation of Paste, where an error described only as None occurs. I was unable to find any path to obtaining a working Pylons install on Win32 under Python 2.6. (other than, of course, ditching Windows!) easy_install just does not install Paste correctly under 2.6, whether by itself or in Pylons. In another discussion somewhere I saw a thread where someone told Ian that even virtualenv 1.3 (reported on the virtualenv page to be 2.6- compatible) was not in fact working under 2.6 on Win32. Ian replied that virtualenv trunk should work. This gave me hope, but it still fell short. The one thing I forgot to try was Paste trunk. For now I think I'll leave the trunks on the train and stick with Python 2.5.2. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Purge/empty request.get?
Hi, Is there a simple way to remove the request.get variables? I have a page that uses .GET to store a load of form elements data as the page can be resent to the controller at any time [onchange event on a select] but is not actually stored at this time, and these get vars are used to repopulate the page. However I'd very much like for them to not be in the url after the page is loaded. The Get vars are all put into a c variable when the controller is recalled - it would be cool to purge / empty .GET so that when the render command returns the URL is nice and tidy again. Any ideas much appreciated. Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
Pylons docs are down
The docs section on the pylons site is not working. Cheers, Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
newb: Correct way to set a SQLalchemy 'relation'
Hi List,
I'm stumbling slightly blind and just wanted to check if there is a smarter
way of doing what I'm doing. I'm using declarative classes to make the DB,
and example class below:
class ArkContact(Base):
all contacts
__tablename__ = 'contacts'
id = Column(Integer, primary_key=True)
project_id = Column(Integer, ForeignKey('projects.id'))
client_id = Column(Integer, ForeignKey('clients.id'))
firstname = Column(String)
lastname = Column(String)
email1 = Column(String)
email2 = Column(String)
workphone = Column(Integer)
mobile = Column(Integer)
project = relation(ArkProject, backref=backref('contacts',
order_by=func.lower(firstname)), cascade='all, delete')
client = relation(ArkClient, backref=backref('contacts',
order_by=func.lower(firstname)), cascade='all, delete')
def __init__(self):
self.firstname = ''
self.lastname = ''
self.email1 = ''
self.email2 = ''
self.workphone = ''
self.mobile = ''
In one of my controllers, I've created an ArkContact as above, and need to
set the 'client' and 'project' attributes. Currently I'm doing it like this:
contact=ArkContact()
contact.client=Session.query(ArkClient).filter(ArkClient.client=='clientName
').first()
Session.add(contact)
Session.commit()
This does seem to work, but I just wanted to know if this is the 'correct'
way of doing things, it seems a little strange to me.
Many thanks for any assistance.
Jules
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newbie: Passing c values through a re_direct?
Hi List,
I'm very green to pretty much everything web framework related, so apologies
in advance...
Basically my problem is that I want to be able to access 'c' object values
after a 'redirect_to' call. I'm guessing from tests that I've done that this
isn't possible.
The idea behind this is I have a page with a load of tools at the bottom -
when a user activates a tool the form submit controller does what it needs
to and then assigns a couple of values to c [c.statusText c.statusCSS], it
then calls a redirect to the main page controller and these values are
*supposed* to give the user a text update based o nthe result of the form.
Obviously this fails because the c settings are lost through the redirect.
My controller code looks like this:
import logging
from pylonserve.lib.base import *
from pylonserve.model import *
log = logging.getLogger(__name__)
class CtrlProjectsController(BaseController):
def projectMenu(self):
c.clients = Session.query(ArkClient)
return render('/projectMenu.mako')
c.statusTemp = c.status
def formProjectAdd(self):
fData=request.params['projectName']
query=Session.query(ArkClient).filter(ArkClient.client.in_(fData))
if not query.first():
formClient=ArkClient(fData)
Session.add(formClient)
Session.commit()
c.status='Client Added'
c.ststusCSS='normal'
else:
c.status='Client allready exists. Not added'
c.statusCSS='error'
redirect_to(action='projectMenu')
I guess my question would be what's the simplest way to get a single page
with a load of forms on it to 'refresh' with updated info?
Many thanks for any info,
Jules
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RE: newbie: Passing c values through a re_direct?
If you just want to show a message on the destination page, webhelpers.pylonslib.Flash will do that. If you need something more elaborate, you'll have to pass the data as query parameters, cookies, or save it in the session (the pylons.session, not the SQLAlchemy Session). Saving it in the session is the most convenient, and is how Flash works. If you're trying to redisplay a form you can do something with @validate, htmlfill, and/or calling an alternate action method. Thanks Mike. Amazingly fast reply! I found a link to this on the list as well, which was very useful: http://groups.google.com/group/pylons-discuss/browse_thread/thread/a15de8d2d 69494d1/753240b52d254eda?lnk=gstq=c+object+redirect#753240b52d254eda Jules --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups pylons-discuss group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~--~~~~--~~--~--~---
RE: newbie: Passing c values through a re_direct?
Saving it in the session
is the most convenient, and is how Flash works.
I'm not sure what I'm doing, but the session object dosen't seem to be
holding any values, this is how I'm trying to manipulate the session object:
def formProjectAdd(self):
#
# validate!!
#
fData=request.params['projectName']
if fData !='':
query=Session.query(ArkClient).filter(ArkClient.client==fData)
if len(query.all())=0:
formClient=ArkClient(fData)
Session.add(formClient)
Session.commit()
session['status']='Client Added'
session['statusCSS']='normal'
else:
session['status']='Client allready exists. Not added'
session['statusCSS']='error'
else:
session['status']='No text entered'
session['statusCSS']='error'
redirect_to('projectMenu')
When I check though a debug, the session keys have been set and are there...
session.keys():
['status', 'statusCSS', '_accessed_time', 'name', '_creation_time']
The mako files starts with this..
html
head
titleArkMain/title
${h.rails.stylesheet_link_tag('/css/main.css')}
## ${h.rails.javascript_include_tag('/javascripts/effects.js',
builtins=True)}
/head
!-- left nav --
div id=left nav class=leftNav
${session.keys()}
And prints out:
['_accessed_time', 'name', '_creation_time']
Any help much appreciated.
Jules
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