I think the given statement below will give you what you r looking <imported module name>.__file__print
On Wed, Feb 18, 2009 at 2:43 PM, <python-list-requ...@python.org> wrote: > Send Python-list mailing list submissions to > python-list@python.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.python.org/mailman/listinfo/python-list > or, via email, send a message with subject or body 'help' to > python-list-requ...@python.org > > You can reach the person managing the list at > python-list-ow...@python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Python-list digest..." > > Today's Topics: > > 1. Directory (gtillmon) > 2. Re: Is there something easier than ORM? (Michele Simionato) > 3. Re: flexible find and replace ? (OdarR) > 4. Re: urllib confusion (Steven D'Aprano) > 5. Re: numpy.memmap advice? (Carl Banks) > 6. Building python with sqlite3 (Justin Li) > 7. Calling a script requiring user input from another script > (mzagu...@gmail.com) > 8. Re: Python 3D CAD -- need collaborators, or just brave souls > :) (r) > 9. PyYaml in standard library? (Brendan Miller) > 10. Re: Building python with sqlite3 (Christian Heimes) > > > ---------- Forwarded message ---------- > From: gtillmon <gtil...@gmail.com> > To: > Date: Tue, 17 Feb 2009 17:18:11 -0800 (PST) > Subject: Directory > Hello. I am new to the Python language. > I would like to know how to display and store the path of each mondule > that is called. > Similar to the old READY TRACE in COBOL of long ago. > > Thanks, > George > > > > ---------- Forwarded message ---------- > From: Michele Simionato <michele.simion...@gmail.com> > To: > Date: Tue, 17 Feb 2009 08:46:02 -0800 (PST) > Subject: Re: Is there something easier than ORM? > On Feb 17, 5:35 pm, Philip Semanchuk <phi...@semanchuk.com> wrote: > > > > I don't intend this as a criticism of SqlAlchemy. On the contrary I am > > impressed by what it does. But I often see people promoting ORM as the > > solution to all database access problems, and I certainly don't feel > > like it is. > > I am also not a big fan of ORM, especially in situations where you > have > performance issues and you are using database specific features. In > such situations > you don't care about portability, but you care about having your SQL > explicit, > so that you can run it directly under the profiler. > > > > ---------- Forwarded message ---------- > From: OdarR <olivier.da...@gmail.com> > To: > Date: Tue, 17 Feb 2009 11:29:19 -0800 (PST) > Subject: Re: flexible find and replace ? > Thanks to everybody. > I need to test your propositions now :) > > Olivier > > > > ---------- Forwarded message ---------- > From: Steven D'Aprano <ste...@remove.this.cybersource.com.au> > To: python-list@python.org > Date: 18 Feb 2009 08:33:08 GMT > Subject: Re: urllib confusion > On Wed, 18 Feb 2009 01:17:40 -0700, Tim H wrote: > > > When I attempt to open 2 different pages on the same site I get 2 copies > > of the first page. ?? > ... > > Any thoughts? > > What does your browser do? > > What does your browser do if you turn off cookies, re-directions and/or > referers? > > > > -- > Steven > > > > ---------- Forwarded message ---------- > From: Carl Banks <pavlovevide...@gmail.com> > To: python-list@python.org > Date: Wed, 18 Feb 2009 00:56:10 -0800 (PST) > Subject: Re: numpy.memmap advice? > On Feb 17, 3:08 pm, Lionel <lionel.ke...@gmail.com> wrote: > > Hello all, > > > > On a previous thread (http://groups.google.com/group/comp.lang.python/ > > browse_thread/thread/64da35b811e8f69d/67fa3185798ddd12? > > hl=en&lnk=gst&q=keene#67fa3185798ddd12) I was asking about reading in > > binary data. Briefly, my data consists of complex numbers, 32-bit > > floats for real and imaginary parts. The data is stored as 4 bytes > > Real1, 4 bytes Imaginary1, 4 bytes Real2, 4 bytes Imaginary2, etc. in > > row-major format. I needed to read the data in as two separate numpy > > arrays, one for real values and one for imaginary values. > > > > There were several very helpful performance tips offered, and one in > > particular I've started looking into. The author suggested a > > "numpy.memmap" object may be beneficial. It was suggested I use it as > > follows: > > > > descriptor = dtype([("r", "<f4"), ("i", "<f4")]) > > data = memmap(filename, dtype=descriptor, mode='r').view(recarray) > > print "First 100 real values:", data.r[:100] > > > > I have two questions: > > 1) What is "recarray"? > > Let's look: > > [GCC 4.3.2] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > >>> import numpy > >>> numpy.recarray > <class 'numpy.core.records.recarray'> > >>> help(numpy.recarray) > > Help on class recarray in module numpy.core.records: > > class recarray(numpy.ndarray) > | recarray(shape, dtype=None, buf=None, **kwds) > | > | Subclass of ndarray that allows field access using attribute > lookup. > | > | Parameters > | ---------- > | shape : tuple > | shape of record array > | dtype : data-type or None > | The desired data-type. If this is None, then the data-type is > determine > | by the *formats*, *names*, *titles*, *aligned*, and > *byteorder* keywords > | buf : [buffer] or None > | If this is None, then a new array is created of the given > shape and data > | If this is an object exposing the buffer interface, then the > array will > | use the memory from an existing buffer. In this case, the > *offset* and > | *strides* keywords can also be used. > ... > > > So there you have it. It's a subclass of ndarray that allows field > access using attribute lookup. (IOW, you're creating a view of the > memmap'ed data of type recarray, which is the type numpy uses to > access structures by name. You need to create the view because > regular numpy arrays, which numpy.memmap creates, can't access fields > by attribute.) > > help() is a nice thing to use, and numpy is one of the better > libraries when it comes to docstrings, so learn to use it. > > > > 2) The documentation for numpy.memmap claims that it is meant to be > > used in situations where it is beneficial to load only segments of a > > file into memory, not the whole thing. This is definately something > > I'd like to be able to do as my files are frequently >1Gb. I don't > > really see in the diocumentation how portions are loaded, however. > > They seem to create small arrays and then assign the entire array > > (i.e. file) to the memmap object. Let's assume I have a binary data > > file of complex numbers in the format described above, and let's > > assume that the size of the complex data array (that is, the entire > > file) is 100x100 (rows x columns). Could someone please post a few > > lines showing how to load the top-left 50 x 50 quadrant, and the lower- > > right 50 x 50 quadrant into memmap objects? Thank you very much in > > advance! > > > You would memmap the whole region in question (in this case the whole > file), then take a slice. Actually you could get away with memmapping > just the last 50 rows (bottom half). The offset into the file would > be 50*100*8, so: > > data = memmap(filename, dtype=descriptor, mode='r',offset= > (50*100*8)).view(recarray) > reshaped_data = reshape(data,(50,100)) > intersting_data = reshaped_data[:,50:100] > > > A word of caution: Every instance of numpy.memmap creates its own mmap > of the whole file (even if it only creates an array from part of the > file). The implications of this are A) you can't use numpy.memmap's > offset parameter to get around file size limitations, and B) you > shouldn't create many numpy.memmaps of the same file. To work around > B, you should create a single memmap, and dole out views and slices. > > > Carl Banks > > > > ---------- Forwarded message ---------- > From: Justin Li <justinl...@gmail.com> > To: python-list@python.org > Date: Wed, 18 Feb 2009 00:59:20 -0800 (PST) > Subject: Building python with sqlite3 > > I'm building and installing Ptyhon 2.6.1 on Linux. After configure, > make, make install, to import sqlite3 leads to ImportError. It looks > like I have to build Python with sqlite. I have sqlite3 installed on > my system. How should I build Python with it? I did not find any > options relating with sqlite3 of configure and Makefile. > > Thanks in Advance! > Justin > > > > ---------- Forwarded message ---------- > From: "mzagu...@gmail.com" <mzagu...@gmail.com> > To: python-list@python.org > Date: Wed, 18 Feb 2009 01:00:28 -0800 (PST) > Subject: Calling a script requiring user input from another script > I'm kind of new to this so bear with me. > > I have a script made that requires user input (lets call it script A) > while it's running. However, I would like to create another script > (script B) that can batch process (i.e. run script A over and over > with different user inputs based on script B). Is this possible? and > how so? Thanks in advance. > > > > ---------- Forwarded message ---------- > From: r <rt8...@gmail.com> > To: python-list@python.org > Date: Wed, 18 Feb 2009 01:02:22 -0800 (PST) > Subject: Re: Python 3D CAD -- need collaborators, or just brave souls :) > Hello Josh, > Blender is a lost cause. It is a powerful app but the UI is horrible. > Even the Blender folks admit only a complete rewrite could solve the > major flaws that plague the design. So maybe i could salvage some code > but for what i have in mind, Blender will look like a piece of > software from the middle ages. And i am absolutly only looking to do > this in 3D, 2D is boring. > > So, yes, i have looked at both the applications you offer. > > Thanks > > > > ---------- Forwarded message ---------- > From: Brendan Miller <catph...@catphive.net> > To: python-list@python.org > Date: Wed, 18 Feb 2009 01:11:09 -0800 > Subject: PyYaml in standard library? > I'm just curious whether PyYaml is likely to end up in the standard > library at some point? > > > > ---------- Forwarded message ---------- > From: Christian Heimes <li...@cheimes.de> > To: python-list@python.org > Date: Wed, 18 Feb 2009 10:13:29 +0100 > Subject: Re: Building python with sqlite3 > Justin Li schrieb: > > I'm building and installing Ptyhon 2.6.1 on Linux. After configure, > > make, make install, to import sqlite3 leads to ImportError. It looks > > like I have to build Python with sqlite. I have sqlite3 installed on > > my system. How should I build Python with it? I did not find any > > options relating with sqlite3 of configure and Makefile. > > Do you have the development files installed as well? Run "make" again > and look at the list of missing modules. > > Christian > > > > -- > http://mail.python.org/mailman/listinfo/python-list > -- Regards, Maneesh KB Comat Technologies Bangalore Mob: 9740-192309 We work with the underprivileged and in rural India. If you are interested to be a part of it, please mail or call me. I will be happy to share and inform - http://www.comat.com
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