Subject: python-grib: Segmentation fault reading NCEP grib file
Package: python-grib
Version: 2.0.2-1
Severity: normal
Dear Maintainer,
I have a python script that reads in some data from a GRIB file
obtained from NCEP. Last time I used it (about a year ago), it worked;
that was on Debian 8 (and, I think, i386). This year, having upgraded
to Debian 9.3 (and gone all amd64), it crashes. A minimal segment of
the script that causes the crash is as follows:
#!/usr/bin/python
## access to grib files at higher lev than ncepgrib2
import pygrib as pg
print("Reading")
##grbs = pg.open('fnl_20180118_00_00.grib2')
grbs = pg.open('fnl_20180118_00_00.grib2')
print("File open")
grb = grbs.select(name='MSLP (Eta model reduction)')[0]
print("Selected MSLP")
## Extract data and plot it.
omslp=grb.values
print("extracted MSLP")
##### End code snippet ###################
The code requires a data file to read in; you can get this from
https://www.geos.ed.ac.uk/~hcp/chartarch/2018_01_18/fnl_20180118_00_00.grib2
If above snippet is run, I get a segfault:
./gribcrash.py
Reading
File open
Selected MSLP
Segmentation fault
I have two different amd64/Debian9.3 machines; the same thing happens on
both.
I have tried other files from the same dataset, so the problem is not
a single corrupt data file. Also, my script still works on my
employer's machines, which are running Python 2.7.5.
Yours puzzledly,
Hugh Pumphrey
-- System Information:
Debian Release: 9.3
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.9.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages python-grib depends on:
ii libc6 2.24-11+deb9u1
ii libgrib-api-dev 1.19.0-1
ii libgrib-api0 1.19.0-1
ii libgrib2c-dev 1.6.0-7
ii libgrib2c0d 1.6.0-7
ii python 2.7.13-2
ii python-numpy [python-numpy-abi9] 1:1.12.1-3
ii python-pyproj 1.9.5.1-2+b1
ii python3-grib 2.0.2-1
Versions of packages python-grib recommends:
ii python-grib-doc 2.0.2-1
python-grib suggests no packages.
-- no debconf information
