如何在树莓派上安装 python 3 和 setuptools？答案

【问题标题】：How to install python 3 and setuptools on raspberry pi?如何在树莓派上安装 python 3 和 setuptools？
【发布时间】：2014-01-02 16:48:43
【问题描述】：

我想安装you-get 但失败了。首先，当我根据项目的 README 文件运行make install 时，我得到了这个错误：

pi@raspberrypi ~/you-get $ make install
python3 setup.py bdist_egg
Traceback (most recent call last):
  File "setup.py", line 15, in <module>
    from setuptools import setup, find_packages
ImportError: No module named setuptools
make: *** [bdist_egg] Error 1

我猜是因为没有安装python的setuptool，所以根据this，我运行命令，但仍然有上述错误。

然后我尝试了sudo easy_install pip 和pip install you-get，但得到了这个错误：

pi@raspberrypi ~ $ sudo pip install you-get
Downloading/unpacking you-get
  Downloading you-get-0.3.24.tar.gz (51kB): 51kB downloaded
  Running setup.py egg_info for package you-get

Installing collected packages: you-get
  Running setup.py install for you-get

    SyntaxError: ("unqualified exec is not allowed in function 'decipher' it contains a nested function with free variables",)

Successfully installed you-get
Cleaning up...

我想看看是不是真的失败了，所以我运行you-get -V，然后得到了这个错误：

pi@raspberrypi ~ $ you-get -V
Traceback (most recent call last):
  File "/usr/local/bin/you-get", line 8, in <module>
    load_entry_point('you-get==0.3.24', 'console_scripts', 'you-get')()
  File "build/bdist.linux-armv6l/egg/pkg_resources.py", line 318, in load_entry_point
  File "build/bdist.linux-armv6l/egg/pkg_resources.py", line 2221, in load_entry_point
  File "build/bdist.linux-armv6l/egg/pkg_resources.py", line 1954, in load
  File "/usr/local/lib/python2.7/dist-packages/you_get/__init__.py", line 3, in <module>
    from .common import *
  File "/usr/local/lib/python2.7/dist-packages/you_get/common.py", line 9, in <module>
    from urllib import request, parse
ImportError: cannot import name request

我猜是因为python的版本，在树莓派上默认的python版本是2.7，但是you-get软件需要python 3，所以我安装了python3并运行：

pi@raspberrypi ~ $ python3 /usr/bin/you-get
python3: can't open file '/usr/bin/you-get': [Errno 2] No such file or directory

pi@raspberrypi ~ $ whereis you-get
you-get: /usr/local/bin/you-get

pi@raspberrypi ~ $ python3 /usr/local/bin/you-get
Traceback (most recent call last):
  File "/usr/local/bin/you-get", line 5, in <module>
    from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

那我不知道接下来该怎么办了。

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