无法在 Ubuntu 服务器中更新熊猫答案

【问题标题】：Can't update pandas in Ubuntu server无法在 Ubuntu 服务器中更新熊猫
【发布时间】：2018-02-24 11:47:48
【问题描述】：

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，熊猫功能显然不起作用。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

【问题讨论】：

您是否检查过您的服务器上是否还有足够的空间？你可以试试pip --no-cache-dir install --upgrade pandas。
MemoryError 表示 python 已填满所有剩余的 RAM（这是唯一无法捕获的错误）。您应该停止占用大量 RAM 的进程，进行更新，然后重新启动进程。

标签： python pandas ubuntu pip

【解决方案1】：

Stackoverflow 充满了英雄：

您是否检查过您的服务器上是否有足够的空间？你可以尝试 pip --no-cache-dir install --upgrade pandas。 ——扬·泽塞维斯

MemoryError 表示 python 已填满所有剩余的 RAM（这是唯一无法捕获的错误）。您应该停止占用大量 RAM 的进程消费者，进行更新，然后重新启动您的流程。 – 杰兰德西

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！

【讨论】：