错误：“python setup.py egg_info”安装 osmnx 失败，错误代码为 1”

Question

I'm trying to install a really important python package osmnx for python 3.7. Below is what I got. I searched on this for the afternoon and tried updating the setuptools but it didn't work.

Microsoft Windows [Version 10.0.17134.590] (c) 2018 Microsoft Corporation. All rights reserved.

C:\\Users\\jelly>pip install osmnx Collecting osmnx Using cached https://files.pythonhosted.org/packages/94/1f/88209842ca41ef8b6a547838bb5872ca03b505a1493927fd17a98cd8e38d/osmnx-0.9-py2.py3-none-any.whl Requirement already satisfied: matplotlib>=2.2 in

c:\\users\\jelly\\appdata\\roaming\\python\\python37\\site-packages (from osmnx) (3.0.3) Collecting Rtree>=0.8.3 (from osmnx) Using cached https://files.pythonhosted.org/packages/33/0d/0bcb0fdd759570e85697189f675fa462131e5636482f2832288bbe4bb6f7/Rtree-0.8.3-py3-none-any.whl Requirement already satisfied: pandas>=0.23 in d:\\program files (x86)\\python37-32\\lib\\site-packages (from osmnx) (0.24.1) Requirement already satisfied: networkx>=2.2 in d:\\program files (x86)\\python37-32\\lib\\site-packages (from osmnx) (2.2) Collecting geopandas>=0.4 (from osmnx) Using cached https://files.pythonhosted.org/packages/f0/5d/916b7268ef551fa9647ce12220e9a68006374f1ce5b0ddaf1cd0df2880b7/geopandas-0.4.1-py2.py3-none-any.whl Requirement already satisfied: requests>=2.21 in d:\\program files (x86)\\python37-32\\lib\\site-packages (from osmnx) (2.21.0) Collecting Shapely>=1.6 (from osmnx) Using cached https://files.pythonhosted.org/packages/a2/fb/7a7af9ef7a35d16fa23b127abee272cfc483ca89029b73e92e93cdf36e6b/Shapely-1.6.4 .post2.tar.gz Complete output from command python setup.py egg_info: Traceback (most recent call last): File "", line 1, in File "C:\\Users\\jelly\\AppData\\Local\\Temp\\pip-install-2g0vnj5r\\Shapely\\setup.py", line 80, in from shapely._buildcfg import geos_version_string, geos_version, \\ File "C:\\Users\\jelly\\AppData\\Local\\Temp\\pip-install-2g0vnj5r\\Shapely\\shapely_buildcfg.py", line 200, in lgeos = CDLL("geos_c.dll") File "d:\\program files (x86)\\python37-32\\lib\\ctypes__init__.py", line 356, in init self._handle = _dlopen(self._name, mode) OSError: [WinError 126] The specified module could not be found

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in C:\\Users\\jelly\\AppData\\Local\\Temp\\pip-install-2g0vnj5r\\Shapely\\

Answer 1

The OSMnx documentation recommends installing with conda. If you prefer to use pip, you need to make sure you install all the C extension dependencies on your system first (which is really difficult and time consuming on windows; for example the error you're getting says you haven't installed the geos dependency). I recommend using conda to install it like:

conda config --prepend channels conda-forge
conda create -n ox --strict-channel-priority osmnx

Answer 2

Please see the final solution here for any other osmnx users. A million thanks to Professor Boeing. https://github.com/conda-forge/osmnx-feedstock/issues/42