Re: Nio.open_file problem : object.__init__() takes no parameters

Hi Mary,

    Sorry, the FTP server deletes files in that directory after a few
days. I've put a smaller file there now, TM5.th.nc4. On my system, PyNIO
can open this file. Can you tell me if this is a "true NetCDF4" file?

-Sourish

Mary Haley wrote:
> Hi Sourish,
>
> Dave Brown is the author of PyNIO, and will have a better idea of how
> it should handle NetCDF 4 files. I've CC'ed him.
>
> I tried to download your file, but it doesn't appear to be there anymore:
>
> ftp ftp.phys.uu.nl
> Connected to tijger.phys.uu.nl.
> 220 Anonymous ftp service Physics Department UU
> Name (ftp.phys.uu.nl:haley): anonymous
> 331 Please specify the password.
> Password:
> 230 Login successful.
> Remote system type is UNIX.
> Using binary mode to transfer files.
> cd ftp> cd uploads
> 250 Directory successfully changed.
> ftp> get DailyColDens.th.2002.nc4
> local: DailyColDens.th.2002.nc4 remote: DailyColDens.th.2002.nc4
> 229 Entering Extended Passive Mode (|||43608|)
> 550 Failed to open file.
> ftp> ls
> 229 Entering Extended Passive Mode (|||19497|)
> 150 Here comes the directory listing.
> 226 Directory send OK.
> ftp> pwd
> 257 "/uploads"
> ftp> quit
> 221 Goodbye.
>
> --Mary
>
> On Feb 12, 2010, at 6:10 AM, Sourish Basu wrote:
>
>> Hi Mary,
>>> But meanwhile, I'm not sure what's going on here. I think Dave said
>>> he might know, but he's out today.
>>>
>>> Is this file a true NetCDF4 file, or a NetCDF 4 classic file? NCL
>>> and PyNIO cannot yet read true NetCDF 4 files.
>>
>> It is a true NetCDF4 file, but I'm surprised at what you say. I used
>> to read the exact same file with PyNIO before I switched over to a
>> 64-bit Linux system and recompiled NCL and PyNIO. In fact, now my old
>> code, where I used Nio for reading, is causing python to crash with
>> messages such as 'ncdiminq: ncid 65536: NetCDF: Invalid dimension ID
>> or name'. But the same code, for reading the same file, used to work,
>> I think (unless I switched the file format at some point, but I don't
>> remember doing that). Could you have a look at the following file:
>>
>> ftp.phys.uu.nl/uploads/DailyColDens.th.2002.nc4
>>
>> and tell me whether PyNIO is supposed to be able to read it?
>>
>> Thanks,
>>
>> -Sourish
>>
>
>
Received on Wed Feb 17 05:42:00 2010