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Question

我在使用read_file函数时遇到了一些有关geopandas和fiona的问题。这是我的回溯：

df = gpd.read_file('/Users/danqing0703/github/Land-Use-Simulation/LBS_Data_Fetching/osm_api/singapore_roads.geojson')

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-3-0c9777b3c6b2> in <module>()
----> 1 boros = GeoDataFrame.from_file('nybb.shp')

/Users/danqing0703/anaconda/lib/python2.7/site-packages/geopandas/geodataframe.pyc in from_file(cls, filename, **kwargs)
    159 
    160         """
--> 161         return geopandas.io.file.read_file(filename, **kwargs)
    162 
    163     @classmethod

/Users/danqing0703/anaconda/lib/python2.7/site-packages/geopandas/io/file.pyc in read_file(filename, **kwargs)
      9     opening the file.
     10     """
---> 11     import fiona
     12     bbox = kwargs.pop('bbox', None)
     13     with fiona.open(filename, **kwargs) as f:

/Users/danqing0703/anaconda/lib/python2.7/site-packages/fiona/__init__.py in <module>()
     70 from six import string_types
     71 
---> 72 from fiona.collection import Collection, BytesCollection, vsi_path
     73 from fiona._drivers import driver_count, GDALEnv, supported_drivers
     74 from fiona.odict import OrderedDict

/Users/danqing0703/anaconda/lib/python2.7/site-packages/fiona/collection.py in <module>()
      5 import sys
      6 
----> 7 from fiona.ogrext import Iterator, ItemsIterator, KeysIterator
      8 from fiona.ogrext import Session, WritingSession
      9 from fiona.ogrext import (

ImportError: dlopen(/Users/danqing0703/anaconda/lib/python2.7/site-packages/fiona/ogrext.so, 2): Library not loaded: /usr/local/lib/libjpeg.8.dylib
  Referenced from: /usr/local/lib/libgdal.1.dylib
  Reason: Incompatible library version: libgdal.1.dylib requires version 13.0.0 or later, but libjpeg.8.dylib provides version 12.0.0

Answer 1

更新系统的libjpeg中断了fiona的动态链接。有两种方法可以解决这个问题：

我更喜欢：pip uninstall fiona，conda install fiona

如果你想坚持使用pip:pip uninstall fiona，pip install fiona

如需更详细的解释，请参阅我的回答：

import matplotlib.pyplot gives ImportError: dlopen(…) Library not loaded libpng15.15.dylib