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ubuntu 14.04在python3中安装一个包含pip（或pip3）的包
我是python的新手，我在安装软件包时遇到问题。我已经看过类似的问题，但很难说它是否相关并且是最新的。
我不知道我需要做些什么才能使其工作。
pip --version
The program 'pip' is currently not installed. You can install it by typing:
sudo apt-get install python-pip
pip3 --version
pip 1.5.4 from /usr/lib/python3/dist-packages (python 3.4)
我有几个版本的python，最新的;
python3
Python 3.4.3 (default, Oct 14 2015, 20:28:29)
[GCC 4.8.4] on linux
当我试图安装一个软件包
pip3 install copy
Downloading/unpacking copy
Could not find any downloads that satisfy the requirement copy
Cleaning up...
No distributions at all found for copy
Storing debug log for failure in /home/ben/.pip/pip.log
我在类似计算器的问题看见了，那人去了日志，并公布这一点。
------------------------------------------------------------
/usr/bin/pip3 run on Thu Aug 18 20:25:27 2016
Downloading/unpacking copy
Getting page https://pypi.python.org/simple/copy/
Could not fetch URL https://pypi.python.org/simple/copy/: 404 Client Error: Not Found
Will skip URL https://pypi.python.org/simple/copy/ when looking for download links for copy
Getting page https://pypi.python.org/simple/
URLs to search for versions for copy:
* https://pypi.python.org/simple/copy/
Getting page https://pypi.python.org/simple/copy/
Could not fetch URL https://pypi.python.org/simple/copy/: 404 Client Error: Not Found
Will skip URL https://pypi.python.org/simple/copy/ when looking for download links for copy
Could not find any downloads that satisfy the requirement copy
Cleaning up...
Removing temporary dir /tmp/pip_build_ben...
No distributions at all found for copy
Exception information:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 278, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/lib/python3/dist-packages/pip/req.py", line 1178, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File "/usr/lib/python3/dist-packages/pip/index.py", line 277, in find_requirement
raise DistributionNotFound('No distributions at all found for %s' % req)
pip.exceptions.DistributionNotFound: No distributions at all found for copy
其他答案这样说 “你需要获取的PyPI通过HTTPS，而不是HTTP。”但我并不真正了解这一点，或者我需要做些什么来解决这个问题。
所以我的问题是，我需要做什么才能安装python3版本的软件包？我需要安装点子，还是使用pip3更好？
[我无法在PyPI上找到一个包'copy']（https://pypi.python.org/pypi/copy/）。你确定这是你想要安装的软件包吗？ –
像@NilsWerner说的，你的问题是你正在尝试安装的软件包不存在。这使问题的其余部分没有意义。 – edwinksl