Pycharm安装pytroch（填坑记）

看了一篇关于FGSM文献，于是网上找了代码来复现，开心的打开Pycharm，然后将需要的包粘贴进去，运行的时候出现了一句话：

No module named 'torch'

自己仔细一看就发现是缺少了相关的包，然后网上找先关资料，结果就踩下了下面这篇文章的坑，这里我把地址放到下面

win10+Python37环境pip安装pytorch及pycharm中导入pytorch遇到的问题

按照他的方法我个人是没有尝试成功，于是在知乎上看到了一篇文章解决了我的问题，解决办法如下所示：

在Pycharm终端输入下面这句话：

pip install torch===1.2.0 torchvision===0.4.0 -f https://download.pytorch.org/whl/torch_stable.html

然后回车，等待一段时间，安装完成之后出现如下所示就说明你成功了：

可能我自己之前用了其他方法安装了出现如下所示(出现下面这些话不影响我们，我们直接忽略就可以)：

Exception:
Traceback (most recent call last):
  File "D:\Python\Anaconda3\lib\shutil.py", line 393, in _rmtree_unsafe
    os.rmdir(path)
OSError: [WinError 145] 目录不是空的。: 'C:\\Users\\AppData\\Local\\Temp\\pip-install-cx_d5000\\torch\\torch\\lib'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python\Anaconda3\lib\site-packages\pip\_internal\cli\base_command.py", line 143, in main
    status = self.run(options, args)
  File "D:\Python\Anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 410, in run
    wheel_cache.cleanup()
  File "D:\Python\Anaconda3\lib\site-packages\pip\_internal\utils\temp_dir.py", line 58, in __exit__
    self.cleanup()
  File "D:\Python\Anaconda3\lib\site-packages\pip\_internal\utils\temp_dir.py", line 81, in cleanup
    rmtree(self.path)
  File "D:\Python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 49, in wrapped_f
    return Retrying(*dargs, **dkw).call(f, *args, **kw)
  File "D:\Python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 212, in call
    raise attempt.get()
  File "D:\Python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 247, in get
    six.reraise(self.value[0], self.value[1], self.value[2])
  File "D:\Python\Anaconda3\lib\site-packages\pip\_vendor\six.py", line 693, in reraise
    raise value
  File "D:\Python\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 200, in call
    attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
  File "D:\Python\Anaconda3\lib\site-packages\pip\_internal\utils\misc.py", line 111, in rmtree
    onerror=rmtree_errorhandler)
  File "D:\Python\Anaconda3\lib\shutil.py", line 507, in rmtree
    return _rmtree_unsafe(path, onerror)
  File "D:\Python\Anaconda3\lib\shutil.py", line 386, in _rmtree_unsafe
    _rmtree_unsafe(fullname, onerror)
  File "D:\Python\Anaconda3\lib\shutil.py", line 386, in _rmtree_unsafe
    _rmtree_unsafe(fullname, onerror)
  File "D:\Python\Anaconda3\lib\shutil.py", line 386, in _rmtree_unsafe
    _rmtree_unsafe(fullname, onerror)
  File "D:\Python\Anaconda3\lib\shutil.py", line 395, in _rmtree_unsafe
    onerror(os.rmdir, path, sys.exc_info())
  File "D:\Python\Anaconda3\lib\site-packages\pip\_internal\utils\misc.py", line 123, in rmtree_errorhandler
    func(path)

PS：对了这里补充一句，如果你的Pycharm使用的是3.8版本的这句话可能不适合你，你可以点击File--->Settings--->Project Interpreter 

点击+，然后在输入框里面输入：pytorch

等待一下就可以安裝完成，至于安装 torchvision，我们需要再次回到终端安装，输入下面这句话：

pip install torchvision===0.4.0 -f https://download.pytorch.org/whl/torch_stable.html

这里可能会提示版本太低，你可以根据提示将torchvision===0.4.0改为torchvision===0.5.0 （大于0.4.0的都可以）

等待一下就可以安装完成了，亲测有效。