错误libtorch_python.so：无法打开共享对象文件：没有这样的文件或目录

Question

我正在尝试实施fastai pretrain语言模型，它需要火炬才能工作。运行代码后，我遇到了一些关于import torch._C的问题

我在我的linux，python 3.7.1上运行它，通过pip：torch 1.0.1.post2，cuda V7.5.17。我收到这个错误：

Traceback (most recent call last):
  File "pretrain_lm.py", line 7, in <module>
    import fastai
  File "/home/andira/anaconda3/lib/python3.7/site-packages/fastai/__init__.py", line 1, in <module>
    from .basic_train import *
  File "/home/andira/anaconda3/lib/python3.7/site-packages/fastai/basic_train.py", line 2, in <module>
    from .torch_core import *
  File "/home/andira/anaconda3/lib/python3.7/site-packages/fastai/torch_core.py", line 2, in <module>
    from .imports.torch import *
  File "/home/andira/anaconda3/lib/python3.7/site-packages/fastai/imports/__init__.py", line 2, in <module>
    from .torch import *
  File "/home/andira/anaconda3/lib/python3.7/site-packages/fastai/imports/torch.py", line 1, in <module>
    import torch, torch.nn.functional as F
  File "/home/andira/anaconda3/lib/python3.7/site-packages/torch/__init__.py", line 84, in <module>
    from torch._C import *
ImportError: libtorch_python.so: cannot open shared object file: No such file or directory

所以我试着运行这一行：

from torch._C import *

并得到相同的结果

ImportError: libtorch_python.so: cannot open shared object file: No such file or directory

我检查了/home/andira/anaconda3/lib/python3.7/site-packages/torch/lib，只有libcaffe2_gpu.so和libshm.so文件，我也找不到libtorch_python.so。我的问题是，实际上libtorch_python.so是什么？我已经阅读了一些文章，并且大多数人都谈到了未定义的符号，不能打开共享对象文件：没有像我这样的文件或目录。我是蟒蛇和火炬的新手，所以我非常感谢你的回答。

Answer 1

我的问题解决了。我正在卸载我的火炬两次pip uninstall torch; pip uninstall torch，然后重新安装它回来pip install torch==1.0.1.post2