python - 无法在 Ubuntu 服务器中更新 Pandas

Question

我正在尝试更新 pandas 库，因为我制作了一些 html 文件，这些文件可以在具有来自最新版本 pandas 的功能的计算机上运行，​​并且当我将 html 文件上传到托管该网站的 ubuntu 服务器时，pandas 功能显然不起作用。我安装了 pip 9.0.1，当我尝试更新 pandas 时，出现以下错误(对不起，代码墙):

 Collecting pandas
   Downloading pandas-0.20.3-cp27-cp27mu-manylinux1_x86_64.whl (22.4MB)
     99% |████████████████████████████████| 22.4MB 64.9MB/s eta 
 0:00:01Exception:
 Traceback (most recent call last):
   File "/usr/local/lib/python2.7/dist-packages/pip/basecommand.py", line 
 215, in main
     status = self.run(options, args)
   File "/usr/local/lib/python2.7/dist-packages/pip/commands/install.py", 
 line 335, in run
     wb.build(autobuilding=True)
   File "/usr/local/lib/python2.7/dist-packages/pip/wheel.py", line 749, in 
 build
     self.requirement_set.prepare_files(self.finder)
   File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 
 380, in prepare_files
     ignore_dependencies=self.ignore_dependencies))
   File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 
 620, in _prepare_file
     session=self.session, hashes=hashes)
  File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 821, 
 in unpack_url
     hashes=hashes
   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 659, 
 in unpack_http_url
     hashes)
   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 882,                               
 in _download_http_url
     _download_url(resp, link, content_file, hashes)
   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 603,                                    
 in _download_url
     hashes.check_against_chunks(downloaded_chunks)
   File "/usr/local/lib/python2.7/dist-packages/pip/utils/hashes.py", line                     
 46, in check_against_chunks
     for chunk in chunks:
   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 571, 
 in written_chunks
     for chunk in chunks:
   File "/usr/local/lib/python2.7/dist-packages/pip/utils/ui.py", line 139, 
 in iter
     for x in it:
   File "/usr/local/lib/python2.7/dist-packages/pip/download.py", line 560, 
 in resp_read
     decode_content=False):
   File "/usr/local/lib/python2.7/dist-
 packages/pip/_vendor/requests/packages/urllib3/response.py", line 357, in 
 stream
     data = self.read(amt=amt, decode_content=decode_content)
   File "/usr/local/lib/python2.7/dist-
 packages/pip/_vendor/requests/packages/urllib3/response.py", line 314, in 
 read
     data = self._fp.read(amt)
   File "/usr/local/lib/python2.7/dist-
 packages/pip/_vendor/cachecontrol/filewrapper.py", line 63, in read
     self._close()
   File "/usr/local/lib/python2.7/dist-
 packages/pip/_vendor/cachecontrol/filewrapper.py", line 50, in _close
     self.__callback(self.__buf.getvalue())
   File "/usr/local/lib/python2.7/dist-
 packages/pip/_vendor/cachecontrol/controller.py", line 275, in 
 cache_response
     self.serializer.dumps(request, response, body=body),
   File "/usr/local/lib/python2.7/dist-
 packages/pip/_vendor/cachecontrol/serialize.py", line 87, in dumps
     ).encode("utf8"),
 MemoryError

Answer 1

Stackoverflow 处处都是英雄:

Did you check if you have enough space left on your server? You can try pip --no-cache-dir install --upgrade pandas. – Jan Zeiseweis

MemoryError means python has filled all RAM left (this is the only uncatchable error). You should stop processes that are heavy RAM consumers, make your update and then restart your processes. – jlandercy

我同时做了这两件事，而且效果很好，我的网站又按预期运行了!