Re: [Pytables-users] pytables for text corpora

2012-01-23 Thread Francesc Alted
2012/1/23 Hector > I guess the only reason why I'm thinking of a Table is to be able to > create an index on one of its columns and then be able to do fast > queries. If I could also do fast queries on a VLArray that would be > great too! Is this actually possible? > Ok. What if you use a VLArr

Re: [Pytables-users] Performance problems in indexed tables.

2012-01-23 Thread Ümit Seren
Hi Anthony I did some profiling with line_profiler. Here are the results for an table with index: Line # Hits Time Per Hit % Time Line Contents == 1469 def readWhere( self,

Re: [Pytables-users] Performance problems in indexed tables.

2012-01-23 Thread Ümit Seren
Because the profile output is probably not formatted properly in the mail I attached the two line_profiler profile output files. In addition to this I also added the profile for _table__whereIndexed() function. On Mon, Jan 23, 2012 at 12:13 PM, Ümit Seren wrote: > Hi Anthony > I did some profili

[Pytables-users] Installation problems windows

2012-01-23 Thread Luc Kesters
I've noticed that this issue occured already in the past but I can't figure out my problem. My settings: - python 2.7 - windows vista - pytables is installed using python(x,y) If I import pandas in a regular script it works fine. I also use python scripting in an scripting engine that's em

Re: [Pytables-users] pytables for text corpora

2012-01-23 Thread Hector
On Mon, Jan 23, 2012 at 3:01 AM, Francesc Alted wrote: > 2012/1/23 Hector >> >> I guess the only reason why I'm thinking of a Table is to be able to >> create an index on one of its columns and then be able to do fast >> queries. If I could also do fast queries on a VLArray that would be >> great

Re: [Pytables-users] pytables for text corpora

2012-01-23 Thread Francesc Alted
2012/1/23 Hector > On Mon, Jan 23, 2012 at 3:01 AM, Francesc Alted > wrote: > > 2012/1/23 Hector > >> > >> I guess the only reason why I'm thinking of a Table is to be able to > >> create an index on one of its columns and then be able to do fast > >> queries. If I could also do fast queries on

Re: [Pytables-users] Installation problems windows

2012-01-23 Thread Anthony Scopatz
Hello Luc, This is because you do not have the correct version of the Windows C runtime library installed. Python is distributed with the Virtual C 2008 (and not anything newer!). You need to install MSVCR90.DLL correctly to get this to work. This is a well known issue. Google for "ImportError