[osgeo4w-dev] [osgeo4w] #598: Fiona can't be imported into python37, DLL error

OSGeo4W trac_osgeo4w at osgeo.org
Mon Mar 4 03:38:43 PST 2019

#598: Fiona can't be imported into python37, DLL error
Reporter:  Andreas Müller  |      Owner:  osgeo4w-dev@…
    Type:  defect          |     Status:  new
Priority:  major           |  Component:  Package
 Version:                  |   Keywords:  python3 fiona geopandas gdal
 i falsely posted this on issues.qgis.org, and i think it should be
 addressed here:

 I installed fiona along with qgis3 and python3 via osgeo4w-setup.exe but
 it throws an exeption:

     Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:06:47) [MSC v.1914 32
 bit (Inte
     l)] on win32
     Type "help", "copyright", "credits" or "license" for more information.
     >>> import fiona
     Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
     File "C:\OSGeo4W\apps\Python37\lib\site-packages\fiona\__init__.py",
 line 87,
     in <module>
     from fiona.collection import BytesCollection, Collection
     File "C:\OSGeo4W\apps\Python37\lib\site-packages\fiona\collection.py",
 line 9,
     in <module>
     from fiona.ogrext import Iterator, ItemsIterator, KeysIterator
     ImportError: DLL load failed: Das angegebene Modul wurde nicht

 This is often reported as a version conflict with gdal.

Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/598>
OSGeo4W <http://trac.osgeo.org/osgeo4w>
OSGeo4W is the Windows installer and package environment for the OSGeo stack.

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