So I installed Shapely with easy_install but when I try:
>>> from shapely.geometry import Point
I'm getting "undefined symbol" errors. This is happening on two
different computers so I'm not sure what I'm missing.
First server is Ubuntu 6.06 LTS, Python 2.4.3 with ctypes installed.
Libgeos is installed with libgeos_c.so.1.3.3 and libgeos.so.2.1.4 (So it
looks like I need to upgrade libgeos anyway). Here's the error I get:
>>> from shapely.geometry import Point
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File
"/usr/lib/python2.4/site-packages/Shapely-1.0.8-py2.4.egg/shapely/geomet
ry/__init__.py",
line 1, in ?
from geo import shape, asShape
File
"/usr/lib/python2.4/site-packages/Shapely-1.0.8-py2.4.egg/shapely/geomet
ry/geo.py",
line 5, in ?
from point import Point, asPoint
File
"/usr/lib/python2.4/site-packages/Shapely-1.0.8-py2.4.egg/shapely/geomet
ry/point.py",
line 10, in ?
from shapely.geos import lgeos, DimensionError
File
"/usr/lib/python2.4/site-packages/Shapely-1.0.8-py2.4.egg/shapely/geos.p
y",
line 54, in ?
execfile(os.path.join(_here, 'ctypes_declarations.py'))
File
"/usr/lib/python2.4/site-packages/Shapely-1.0.8-py2.4.egg/shapely/ctypes
_declarations.py",
line 233, in ?
lgeos.GEOSWKTReader_create.restype = ctypes.c_void_p
File
"/usr/lib/python2.4/site-packages/ctypes-1.0.2-py2.4-linux-x86_64.egg/ct
ypes/__init__.py",
line 353, in __getattr__
func = self.__getitem__(name)
File
"/usr/lib/python2.4/site-packages/ctypes-1.0.2-py2.4-linux-x86_64.egg/ct
ypes/__init__.py",
line 358, in __getitem__
func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /usr/lib/libgeos_c.so.1: undefined symbol:
GEOSWKTReader_create
However, I get a very similar error on my laptop, which is Ubuntu 8.04
with Python 2.5.2 and libgeos.so.2.2.3, which should meet all of the
dependencies:
>>> from shapely.geometry import Point
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/usr/lib/python2.5/site-packages/Shapely-1.0.8-py2.5.egg/shapely/geomet
ry/__init__.py",
line 1, in <module>
from geo import shape, asShape
File
"/usr/lib/python2.5/site-packages/Shapely-1.0.8-py2.5.egg/shapely/geomet
ry/geo.py",
line 5, in <module>
from point import Point, asPoint
File
"/usr/lib/python2.5/site-packages/Shapely-1.0.8-py2.5.egg/shapely/geomet
ry/point.py",
line 10, in <module>
from shapely.geos import lgeos, DimensionError
File
"/usr/lib/python2.5/site-packages/Shapely-1.0.8-py2.5.egg/shapely/geos.p
y",
line 54, in <module>
execfile(os.path.join(_here, 'ctypes_declarations.py'))
File
"/usr/lib/python2.5/site-packages/Shapely-1.0.8-py2.5.egg/shapely/ctypes
_declarations.py",
line 19, in <module>
lgeos.GEOS_getWKBOutputDims.restype = ctypes.c_int
File "/usr/lib/python2.5/ctypes/__init__.py", line 361, in __getattr__
func = self.__getitem__(name)
File "/usr/lib/python2.5/ctypes/__init__.py", line 366, in __getitem__
func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /usr/lib/libgeos_c.so.1: undefined symbol:
GEOS_getWKBOutputDims
I'm guessing that ctypes hates me. Any ideas as to why?
Thanks,
Marc
n
Marc Pfister
Technology Manager
ENPLAN
[EMAIL PROTECTED]
530/221-0440 x108
530/221-6963 Fax
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