[osgeo4w-dev] [osgeo4w] #819: Cannot import both pyarrow and osgeo in OSGeo4W shell

[OSGeo4W]

#819: Cannot import both pyarrow and osgeo in OSGeo4W shell
-------------------+---------------------------
Reporter:  jontwo  |      Owner:  osgeo4w-dev@…
    Type:  defect  |     Status:  new
Priority:  normal  |  Component:  Package
 Version:          |   Keywords:
-------------------+---------------------------
 The latest version of dask was causing an import error, but on further
 investigation it turns out that pyarrow and GDAL cannot be installed at
 the same time.

 Repro case: importing on the command line, both libraries can be imported
 individually, but not together. You get a different error depending on the
 import order.


 {{{

 c:\>python -c "import pyarrow"

 c:\>python -c "import osgeo"

 c:\>python -c "import pyarrow;import osgeo"
 Traceback (most recent call last):
   File "C:\OSGeo4W\apps\Python39\lib\site-packages\osgeo\__init__.py",
 line 30, in swig_import_helper
     return importlib.import_module(mname)
   File "C:\OSGeo4W\apps\Python39\lib\importlib\__init__.py", line 127, in
 import_module
     return _bootstrap._gcd_import(name[level:], package, level)
   File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
   File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
   File "<frozen importlib._bootstrap>", line 986, in
 _find_and_load_unlocked
   File "<frozen importlib._bootstrap>", line 666, in _load_unlocked
   File "<frozen importlib._bootstrap>", line 565, in module_from_spec
   File "<frozen importlib._bootstrap_external>", line 1173, in
 create_module
   File "<frozen importlib._bootstrap>", line 228, in
 _call_with_frames_removed
 ImportError: DLL load failed while importing _gdal: The specified
 procedure could not be found.

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "<string>", line 1, in <module>
   File "C:\OSGeo4W\apps\Python39\lib\site-packages\osgeo\__init__.py",
 line 35, in <module>
     _gdal = swig_import_helper()
   File "C:\OSGeo4W\apps\Python39\lib\site-packages\osgeo\__init__.py",
 line 32, in swig_import_helper
     return importlib.import_module('_gdal')
   File "C:\OSGeo4W\apps\Python39\lib\importlib\__init__.py", line 127, in
 import_module
     return _bootstrap._gcd_import(name[level:], package, level)
 ModuleNotFoundError: No module named '_gdal'

 c:\>python -c "import osgeo;import pyarrow"
 Traceback (most recent call last):
   File "<string>", line 1, in <module>
   File "C:\OSGeo4W\apps\Python39\lib\site-packages\pyarrow\__init__.py",
 line 65, in <module>
     import pyarrow.lib as _lib
 ImportError: DLL load failed while importing lib: The specified procedure
 could not be found.

 }}}

 System information:


 QGIS version
 3.34.4-Prizren
 QGIS code revision
 decd43dc
 Qt version
 5.15.3
 Python version
 3.9.18
 GDAL/OGR version
 3.8.4
 PROJ version
 9.3.1
 EPSG Registry database version
 v10.098 (2023-11-24)
 GEOS version
 3.12.1-CAPI-1.18.1
 SQLite version
 3.41.1
 PDAL version
 2.6.0
 PostgreSQL client version
 16.1
 SpatiaLite version
 5.1.0
 QWT version
 6.1.6
 QScintilla2 version
 2.13.4
 OS version
 Windows 10 Version 2009
-- 
Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/819>
OSGeo4W <http://trac.osgeo.org/osgeo4w>
OSGeo4W is the Windows installer and package environment for the OSGeo stack.