overriding equals operation

2012-10-16 Thread Pradipto Banerjee
I am trying to define class, where if I use a statement a = b, then instead of "a" pointing to the same instance as "b", it should point to a copy of "b", but I can't get it right. Currently, I have the following: class myclass(object): def __init__(self, name='')

Python does not take up available physical memory

2012-10-19 Thread Pradipto Banerjee
Hi, I am trying to read a file into memory. The size of the file is around 1 GB. I have a 3GB memory PC and the Windows Task Manager shows 2.3 GB available physical memory when I was trying to read the file. I tried to read the file as follows: >>> fdata = open(filename, 'r').read() I got a

RE: Python does not take up available physical memory

2012-10-19 Thread Pradipto Banerjee
does not take up available physical memory On Fri, Oct 19, 2012 at 11:08 AM, Pradipto Banerjee wrote: > Is there any reason why python can't read a 1GB file in memory even when a > 2.3 GB physical memory is available? Do I need to make a change in some > setting or preferences? >

RE: Python does not take up available physical memory

2012-10-19 Thread Pradipto Banerjee
On 10/19/2012 10:08 AM, Pradipto Banerjee wrote: > Hi, > > I am trying to read a file into memory. The size of the file is around 1 > GB. I have a 3GB memory PC and the Windows Task Manager shows 2.3 GB > available physical memory when I was trying to read the file. I tried to >

RE: Python does not take up available physical memory

2012-10-19 Thread Pradipto Banerjee
-list-bounces+pradipto.banerjee=adainvestments@python.org] On Behalf Of Dennis Lee Bieber Sent: Friday, October 19, 2012 6:01 PM To: python-list@python.org Subject: Re: Python does not take up available physical memory On Fri, 19 Oct 2012 12:08:53 -0500, Pradipto Banerjee declaimed the

RE: Python does not take up available physical memory

2012-10-19 Thread Pradipto Banerjee
3:37 -0500, Pradipto Banerjee wrote: > Thanks, I tried that. Still got MemoryError, but at least this time > python tried to use the physical memory. What I noticed is that before > it gave me the error it used up to 1.5GB (of the 2.23 GB originally > showed as available) - so in ge

RE: Python does not take up available physical memory

2012-10-21 Thread Pradipto Banerjee
ython-list [mailto:python-list-bounces+pradipto.banerjee=adainvestments@python.org] On Behalf Of Steven D'Aprano Sent: Friday, October 19, 2012 6:12 PM To: python-list@python.org Subject: Re: Python does not take up available physical memory On Fri, 19 Oct 2012 14:03:37 -0500, Pradipto Bane

fastest data / database format for reading large files

2012-10-28 Thread Pradipto Banerjee
I am working with a series of large files with sizes 4 to 10GB and may need to read these files repeated. What data format (i.e. pickle, json, csv, etc.) is considered the fastest for reading via python? Thanks This communication is for informational purposes only. It is not intended to be, n

fastest data / database format for reading large files

2012-10-28 Thread Pradipto Banerjee
I am working with a series of large files with sizes 4 to 10GB and may need to read these files repeated. What data format (i.e. pickle, json, csv, etc.) is considered the fastest for reading via python? Thanks This communication is for informational purposes on