http://blog.gmane.org/gmane.comp.python.ipython.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.python.ipython.user/4186 _______________________________________________ IPython-user mailing list IPython-user< at >scipy.org http://lists.ipython.scipy.org/mailman/listinfo/ipython-user Benjamin J. Racine 2008-12-02T23:45:38 http://comments.gmane.org/gmane.comp.python.ipython.user/4169 Hi, I do have some trivial parallel code (I need to apply some analysis algorithm to a bunch of data files), and access to either an SMP linux machine with loads of CPUs or to a linux cluster. In the past, I have launched my python scripts with a different command line to get them to run concurrently, but I was thinking whether there's some pythonic way of dealing with this that is simple. I seem to remember that ipython would be a nice tool for this, but I'm not sure of it, or indeed, any other alternatives. My code is simple: for file in list_of_files: #I want spawn this next line ProcessFile ( file ) Thanks for your help, Jose Jose Gómez-Dans 2008-12-01T17:50:29 http://comments.gmane.org/gmane.comp.python.ipython.user/4164 You can now actually use the qt ui. It's at "technology demo" right now, but basic stuff like tab completion now works. The colors suck (typical ipython + white background issue), KeyboardInterrupt doesn't work (apart from doing it in the console window) and it probably has lots of other problems, but nothing that hasn't been solved in other gui's already, so it probably won't take forever to polish it. Input happens in separate scintilla widget, so it requires a bit of a mindset switch, but nothing too drastic. The big win is simplicity of multiline editing, and general "statelessness" (autoindent etc). You can test it out by doing: bzr branch lp:~villemvainio/ipython/ipython-qt-ui and running qtipy.py. Screenshot: http://img84.imageshack.us/img84/5875/ipyqteo3.png Ville M. Vainio 2008-11-30T19:28:19 http://comments.gmane.org/gmane.comp.python.ipython.user/4160 Hi, is there any way for creating a new blank file from the iPython shell? I'm on a linux machine and I'm wondering if is it possible to do something like: vim newfile.py Or at least using touch. Thanks. Mr.SpOOn 2008-11-30T15:22:51 http://comments.gmane.org/gmane.comp.python.ipython.user/4156 Hi everyone, I'm performing blocking file read commands on remote engines, one at a time, but regularly get the error: ******************************************************************************************************** CompositeError Traceback (most recent call last) <ipython console> in <module>() /fe2.pyc in setup(self, append) 365 diskpush({'a':self}, picklemode = 0) # use mode 0 (others fail) 366 else: --> 367 diskpush({'a':self}) 368 369 /reference.pyc in diskpush(a, targets, block, isanobject, picklemode) 3359 time.sleep(5.0); mprint('Done. ') 3360 #mec.execute('tmpdata = dpfile.read()', targets = [i], block = True) -> 3361 mec.execute('dpvar = cPickle.load(dpfile)', targets = [i], block = True) 3362 mec.execute('dpfile.close()', targets = [i], block = True) 3363 #mec.barrier(a) /usr/local/lib64/python2.5/site-packages/IPython/kernel/multiengineclient.pyc in execute(self, lines, targets, block) 520 targets, block = self._findTargetsAndBlock(targets, block) 521 result = blockingCallFromThread(self.smultiengine.execute, lines, --> 522 targets=targets, block=block) 523 if block: 524 result = ResultList(result) /usr/local/lib64/python2.5/site-packages/IPython/kernel/twistedutil.pyc in blockingCallFromThread(f, *a, **kw) 67 < at >raise: any error raised during the callback chain. 68 """ ---> 69 return twisted.internet.threads.blockingCallFromThread(reactor, f, *a, **kw) 70 71 else: /usr/local/lib64/python2.5/site-packages/Twisted-8.1.0-py2.5-linux-x86_64.egg/twisted/internet/threads.pyc in blockingCallFromThread(reactor, f, *a, **kw) 81 result = queue.get() 82 if isinstance(result, failure.Failure): ---> 83 result.raiseException() 84 return result 85 /usr/local/lib64/python2.5/site-packages/Twisted-8.1.0-py2.5-linux-x86_64.egg/twisted/python/failure.pyc in raiseException(self) 317 information if available. 318 """ --> 319 raise self.type, self.value, self.tb 320 321 CompositeError: one or more exceptions from call to method: execute [0:execute]: IOError: [Errno 4] Interrupted system call ******************************************************************************************************************* It doesn't always happen; sometimes it will occur after a few hours of execution (ruining overnight runs). The active parts of the routine falling over are: ============================================= for i in targets: # Sequential engine reads. mec.execute('dpfile = bz2.BZ2File(tmpfn, "rb")', targets = [i], block = True) mec.execute('dpvar = cPickle.load(dpfile)', targets = [i], block = True) mec.execute('dpfile.close()', targets = [i], block = True) ============================================= with targets = mec.get_ids() Following the error, subsequent requests to the engines get results like: /<ipython console> in <module>() /fe2.pyc in setup(self, append) 365 diskpush({'a':self}, picklemode = 0) # use mode 0 (others fail) 366 else: --> 367 diskpush({'a':self}) 368 369 /reference.py in diskpush(a, targets, block, isanobject, picklemode) 3359 #time.sleep(5.0); mprint('Done. ') 3360 #mec.execute('tmpdata = dpfile.read()', targets = [i], block = True) -> 3361 mec.execute('dpvar = cPickle.load(dpfile)', targets = [i], block = True) 3362 mec.execute('dpfile.close()', targets = [i], block = True) 3363 #mec.barrier(a) /usr/local/lib64/python2.5/site-packages/IPython/kernel/multiengineclient.pyc in execute(self, lines, targets, block) 520 targets, block = self._findTargetsAndBlock(targets, block) 521 result = blockingCallFromThread(self.smultiengine.execute, lines, --> 522 targets=targets, block=block) 523 if block: 524 result = ResultList(result) /usr/local/lib64/python2.5/site-packages/IPython/kernel/twistedutil.pyc in blockingCallFromThread(f, *a, **kw) 67 < at >raise: any error raised during the callback chain. 68 """ ---> 69 return twisted.internet.threads.blockingCallFromThread(reactor, f, *a, **kw) 70 71 else: /usr/local/lib64/python2.5/site-packages/Twisted-8.1.0-py2.5-linux-x86_64.egg/twisted/internet/threads.pyc in blockingCallFromThread(reactor, f, *a, **kw) 81 result = queue.get() 82 if isinstance(result, failure.Failure): ---> 83 result.raiseException() 84 return result 85 /usr/local/lib64/python2.5/site-packages/Twisted-8.1.0-py2.5-linux-x86_64.egg/twisted/python/failure.pyc in raiseException(self) 317 information if available. 318 """ --> 319 raise self.type, self.value, self.tb 320 321 CompositeError: one or more exceptions from call to method: execute [0:execute]: AttributeError: 'module' object has no attribute 'cbook' and then, when I quit IPython, I get, Closing threads... Done. Exception exceptions.TypeError: "'NoneType' object is not callable" in <bound method RemoteReferenceTracker._refLost of <RemoteReferenceTracker(clid=1,url=pbu://127.0.0.1:24879/uwtv36uev6e7emd45xfz77tt75krrduj)>> ignored The engines need a restart after this error. Any ideas on how to fix this, would be appreciated. It's hobbling my parallel processing attempts! Thanks in advance, Mark. matplotlib version 0.98.3 verbose.level helpful interactive is False units is False platform is linux2 Could not load matplotlib icon: 'module' object has no attribute 'window_set_default_icon_from_file' backend QtAgg version 0.9.1 Activating auto-logging. Current session state plus future input saved. Filename : ipython_log.py Mode : rotate Output logging : False Raw input log : False Timestamping : False State : active Python 2.5.1 (r251:54863, Jan 10 2008, 18:00:49) Type "copyright", "credits" or "license" for more information. IPython 0.9.rc1 -- An enhanced Interactive Python. mark starnes 2008-11-25T09:51:12 http://comments.gmane.org/gmane.comp.python.ipython.user/4154 I would like to pass command args to a script and after the script runs, drop into an ipython shell. Something like > ipython 'agg_oo.py --verbose-helpful' Which does not work. Is such a thing possible? If not, what is the proper incantation to add at the end of the script to open an interactive ipython shell with the namespace of the script? I tried:: from IPython.Shell import IPShellEmbed ipshell = IPShellEmbed() ipshell() but it did not like the command args either :-( Thanks, JDH IPython 0.9.0.bzr.r1016 John Hunter 2008-11-24T17:16:24 http://comments.gmane.org/gmane.comp.python.ipython.user/4150 Hello list, I am just beginning teaching myself IPython, and I am stumbling. Following the steps in a book on Computer Programming (Langtangen), the author gives the following example: In [1]: run ball_variables.py 1.2342 In [2]: _*10 Out[2]: 12.341999999999999 That is, he argues that with an underscore "_" the last result can be accessed. However, I cannot reproduce this behaviour. I am running Python 2.5.2 (r252:60911) with IPython 0.8.1. Could someone please be so kind and let me know what the mistake is? Cheers, David David 2008-11-22T16:02:31 http://comments.gmane.org/gmane.comp.python.ipython.user/4142 Hi, After a month or so of hacking on and off, I have finished a new version of the ipcluster script. This version has lots of new stuff: * Cross platform (Win32!) * Much more robust design (using Twisted) * Uses subcommands (ipcluster local, ipcluster pbs, etc.) for different cluster types. * Supports 3 cluster types currently (localhost, pbs, mpirun). The following just work: ipcluster local -n 4 ipcluster mpirun -n 16 --mpi-mpi4py ipcluster pbs -n 128 --pbs-script=pbs.template But, I am not sure how soon we want to merge this into trunk: * There are _no_ tests - this type of thing is very difficult to test. * No docs on this yet ( that is easy to fix). * The design is gong to change in massive ways - we need to refactor the config system in significant ways and that will change the API of ipcluster. * ipcluster itself needs some refactoring. It turns out that I will need to begin using Barry's notification center to really get the design right. But.... The ipcluster that we shipped with 0.9.1 is very broken. So...how do people think we should handle the review and merging of this? For now though, you will have to grab my branch to get this. Cheers, Brian Brian Granger 2008-11-16T22:54:26 http://comments.gmane.org/gmane.comp.python.ipython.user/4136 I have just installed the Enthought python distribution for Mac OS X. I have received a 10.5.5 MacBook Pro and am trying to get SciPy up and running again, with limited success. After installing Enthought, I lost the pydb support. When I execute with the -pydb option, I get an error message: $ ipython -pydb Pydb (http://bashdb.sourceforge.net/pydb/) does not seem to be available IPython 0.9.1 [on Py 2.5.2] That is the same version of ipython I had installed myself and the pydb support just worked. I abandoned the install from source because I could not install matplotlib successfully. However, I don't want to lose pydb. Any chance there is a way I can add pydb to the Enthought distribution? I have searched the internet and found no information on this topic. Thanks for your help. -Tony -- Tony Mannucci Supervisor, Ionospheric and Atmospheric Remote Sensing Group Mail-Stop 138-308, Tel > (818) 354-1699 Jet Propulsion Laboratory, Fax > (818) 393-5115 California Institute of Technology, Email > Tony.Mannucci< at >jpl.nasa.gov 4800 Oak Grove Drive, http://genesis.jpl.nasa.gov Pasadena, CA 91109 Mannucci, Anthony J 2008-11-15T05:31:26 http://comments.gmane.org/gmane.comp.python.ipython.user/4131 _______________________________________________ IPython-user mailing list IPython-user< at >scipy.org http://lists.ipython.scipy.org/mailman/listinfo/ipython-user Benjamin J. Racine 2008-11-14T19:12:14 http://comments.gmane.org/gmane.comp.python.ipython.user/4130 Hi All, I've encountered a problem with the parallel capabilities in the new version of IPython 0.9.1. It seems that if you import a package in the MultiEngineClient then afterwards running tasks with the TaskClient fails. This use case was working properly in the previous version of IPython1. Attached is a reduced example that produces the error on my machine. The output from the engines is: 008-11-11 09:12:48+0100 [-] Log opened. 2008-11-11 09:12:48+0100 [-] Using furl file: /home/mammoth/dejan/.ipython/security/ipcontroller-engine.furl 2008-11-11 09:12:48+0100 [Negotiation,client] engine registration succeeded, got id: 1 2008-11-11 09:12:50+0100 [-] /usr/lib64/python2.4/site-packages/twisted/internet/base.py:1047: exceptions.DeprecationWarning: Reactor already running! This behavior is deprecated since Twisted 8.0 Fatal Python error: PyEval_RestoreThread: NULL tstate If I remove the line: rc.execute('import test_cluster2 as M') from the script, then everything works fine. I'm using Python 2.4, with IPython 0.9.1 installed using twisted 8.1 and foolscap 0.3.1. The distribution is Fedora core 6, Linux kernel 2.6.24.4.fc6, x86_64 machine. Any help would be appreciated. regards, Dejan _______________________________________________ IPython-user mailing list IPython-user< at >scipy.org http://lists.ipython.scipy.org/mailman/listinfo/ipython-user Pecevski Dejan 2008-11-14T17:04:00 http://comments.gmane.org/gmane.comp.python.ipython.user/4126 I have installed installed ipython in Windows XP Professional (Swedish). When I do cd <something> it looks like the command worked when I do pwd but when I do ls the list output is ALWAYS from c:\, not the current directory. Why? python version: 2.5.2 installed in c:\Program\Panda3D-1.5.3\python /Elias Elias Bröms 2008-11-14T09:44:29 http://comments.gmane.org/gmane.comp.python.ipython.user/4125 I find it difficult to edit a multiline input I define the following function in IPython: In [2]: def gen(n): ...: while n: ...: n = n - 1 ...: yield n the cursor (the text cursor) is still in the last line of In [2]. how can i move the cursor up? for instance when I want to change n - 1 to n - 2? What if I want to insert another line like the following? In [2]: def gen(n): ...: while n: ...: print n ...: n = n - 1 ...: yield n Good Bad 2008-11-14T08:21:44 http://comments.gmane.org/gmane.comp.python.ipython.user/4123 how can I search the archive of this mailing list? Good Bad 2008-11-14T07:49:28 http://comments.gmane.org/gmane.comp.python.ipython.user/4119 I see that I can download specific versions of ipython here: http://ipython.scipy.org/dist/ Is there some way to grab a specific version of ipython via bzr? Once a specific version is downloaded, what would the equivalent of switching to a different tag in Subversion be? I'm used to doing this with Subversion and CVS but have no Bazaar-fu. Thanks, skip< at >pobox.com 2008-11-13T16:11:51 http://comments.gmane.org/gmane.comp.python.ipython.user/4116 _______________________________________________ IPython-user mailing list IPython-user< at >scipy.org http://lists.ipython.scipy.org/mailman/listinfo/ipython-user kevin beckford 2008-11-13T12:40:31 http://comments.gmane.org/gmane.comp.python.ipython.user/4113 Python 2.5.2 on WinXP, IPython 0.9.1, latest pyreadline I'm doing some work with the Mercurial api (written in python, similar to bzr). One of the main files that gets imported replaces sys.stdout with a class that does a few basic checks but is otherwise a very thin wrapper around sys.stdout. Problem is, as soon as I import the file my prompt gets hosed (I can see the raw ansi color codes, etc). Here is a stripped down version of the problem: In [1]: import sys class myout(): def __init__(self, fp): self.fp = fp def __getattr__(self, key): return getattr(self.fp, key) def close(self): self.fp.close() def write(self, s): self.fp.write(s) def flush(self): self.fp.flush() sys.stdout = myout(sys.stdout) ☺←[0;32m☻In [☺←[1;32m☻3☺←[0;32m☻]: ☺←[0m☻ I've looked through the IPython and pyreadline sources but I can't find anything obvious that would explain this. Does anyone have idea what the problem is or any advice on where I should be looking in the source? Thanks. David Shilvock 2008-11-13T06:07:22 http://comments.gmane.org/gmane.comp.python.ipython.user/4111 I am experiencing some unusual behavior *only* when I am directly working in the ipython shell. The problem involves the get method for a property. class MyClass(): def __init__(self): self._x = 3 def getx(self): print "getting x" return self._x def setx(x): print "setting x" self._x = x x = property(getx, setx) a = MyClass() a.x # prints "getting x" twice print a.x # prints "getting x" once If you stick all this in a file and do 'run test.py', the problem does not occur. Also, notice that it does not occur in the "print a.x" statement. Any thoughts as to why this is happening? Python 2.5.2 (r252:60911, Oct 5 2008, 19:24:49) IPython 0.9.0.bzr.r1016 -- An enhanced Interactive Python. T J 2008-11-13T03:45:06 http://comments.gmane.org/gmane.comp.python.ipython.user/4106 Hi all, I was pointed at your wiki[1] page on TextMate integration, and decided it was such a great idea that I'd make it into a TextMate bundle. My aim is to get it put into the official bundle repository. To that end, I've set up a google group [2] for discussion, and made a start (by copying and pasting, with some tweaks) at a bundle on GitHub [3]. I currently maintain the Matlab/Octave bundle for TextMate, and I'm gradually moving towards using python instead. However, I'm a complete newbie to python and ipython/numpy/scipy so I'd like to ask for any comments, suggestions or help that anyone would like to give. In my view, a bundle wrapping all sorts of useful functionality (snippets/commands etc) for aiding scientific computing with python would be best, but since it was IPython functionality that inspired me to get started, I thought I'd ask you guys first. If there are any TextMate users out there who would like to see this functionality, or help out, then please join the google group. Similarly, if I've missed something that someone else has already done in this regard, I'd love to know. Thanks, Matt Foster PS. Whilst TextMate itself in non-free, the bundles are open source, and freely available to all. I intend to license this bundle similarly (probably under an MIT license). [1]: http://ipython.scipy.org/moin/Cookbook/UsingIPythonWithTextMate [2]: http://groups.google.com/group/ipython-tmbundle/ [3]: github.com/mattfoster/ipython-tmbundle/ Matt Foster 2008-11-12T21:10:57 http://comments.gmane.org/gmane.comp.python.ipython.user/4102 _______________________________________________ IPython-user mailing list IPython-user< at >scipy.org http://lists.ipython.scipy.org/mailman/listinfo/ipython-user Phyo Arkar 2008-11-12T19:27:05 http://comments.gmane.org/gmane.comp.python.ipython.user/4088 _______________________________________________ IPython-user mailing list IPython-user< at >scipy.org http://lists.ipython.scipy.org/mailman/listinfo/ipython-user Sylvain Guiriec 2008-11-09T20:16:21 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.python.ipython.user