python3 fails to install caffe under anaconda
Python and Python3 are completely two languages
0x00 import caffe FAILED
The environment is Ubuntu 16 cuda 8.0 NVIDIA 361.77 Anaconda2. Yesterday, Caffe was inexplicably unavailable:
>>> import caffe Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/duchengyao/project/caffe/python/caffe/__init__.py", line 1, in <module> from .pycaffe import Net, SGDSolver, NesterovSolver, AdaGradSolver, RMSPropSolver, AdaDeltaSolver, AdamSolver File "/home/duchengyao/project/caffe/python/caffe/pycaffe.py", line 13, in <module> from ._caffe import Net, SGDSolver, NesterovSolver, AdaGradSolver, \ ImportError: /home/duchengyao/project/caffe/python/caffe/../../build/lib/libcaffe.so.1.0.0-rc3: undefined symbol: _ZN2cv8imencodeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKNS_11_InputArrayERSt6vectorIhSaIhEERKSB_IiSaIiEE</module></module></module></stdin>
All kinds of attempts were ineffective. After reinstalling Anaconda, the error disappeared and import caffe was successful.
0x01 import FAILED again after “$conda install opencv”
After installing Opencv with conda install opencv, the same error message appeared again, and the error disappeared after uninstalling .
The Opencv version installed by Conda is 2.4.10, and the version installed by system apt is 2.4.9.1. I tried to install version 2.4.9 from conda, but there were a lot of conflicts to deal with.
Finally, I had no choice but to switch to Anaconda3. After the environment was set up, it was really awkward to run the program because various libraries were incompatible. Finally I understand why the veterans joked that Python and Python3 are completely two different languages
0x02 Solution
The temporary solution is to abandon anaconda and install everything with apt The software package uses the system default Opencv and runs successfully.
Attachment: Chinese version of Python3 tutorial pdf
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