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Yi Xing wrote:
> Hi,
>
> I met the following error when I tried to install MySQLdb. I had no
> problem installing numarray, Numeric, Rpy, etc. Does anyone know
> what's the problem? Thanks!
Hi,
I met the following error when I tried to install MySQLdb. I had no
problem installing numarray, Numeric, Rpy, etc. Does anyone know
what's the problem? Thanks!
running install
running build
running build_py
creating build
creating build/lib.darwin-7.9.0-Power_Macintosh-2.4
copying _mysql_
I used the array module and loaded all the data into an array.
Everything works fine now.
On Aug 14, 2006, at 4:01 PM, John Machin wrote:
> Yi Xing wrote:
>> Thanks! I just found that that I have no problem with
>> x=[[10.0]*2560*2560]*500, but x=range(1*2560*2560*30) doesn'
Is there a way that I can define a two-dimensional array in
array.array()? Thanks.
On Aug 14, 2006, at 2:28 PM, John Machin wrote:
> Yi Xing wrote:
>> I tried the following code:
>>
>>>>> i=0
>>>>> n=2600*2600*30
>>>>> a=array.array
Thanks! I just found that that I have no problem with
x=[[10.0]*2560*2560]*500, but x=range(1*2560*2560*30) doesn't work.
-Yi
On Aug 14, 2006, at 3:08 PM, Larry Bates wrote:
> Yi Xing wrote:
>> On a related question: how do I initialize a list or an array with a
>> pre
On a related question: how do I initialize a list or an array with a
pre-specified number of elements, something like
int p[100] in C? I can do append() for 100 times but this looks silly...
Thanks.
Yi Xing
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I tried the following code:
>>> i=0
>>> n=2600*2600*30
>>> a=array.array("f")
>>> while (i<=n):
.. i=i+1
.. a.append(float(i))
..
Traceback (most recent call last):
File "", line 3, in ?
MemoryError
to see the size of the array at the time of memory error:
>>>len(a)
8539248.
I use Wind
Hi,
I need to read a large amount of data into a list. So I am trying to
see if I'll have any memory problem. When I do
x=range(2700*2700*3) I got the following message:
Traceback (most recent call last):
File "", line 1, in ?
MemoryError
Any way to get around this problem? I have a mac
Hi,
I need to read specific lines of huge text files. Each time, I know
exactly which line(s) I want to read. readlines() or readline() in a
loop is just too slow. Since different lines have different size, I
cannot use seek(). So I am thinking of building an index for the file
for fast access
Hi All,
I want to read specific lines of a huge txt file (I know the line #).
Each line might have different sizes. Is there a convenient and fast
way of doing this in Python? Thanks.
Yi Xing
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