小编emc*_*cek的帖子

一些包是使用与 PyPI 上包的名称不同的字符串导入的，例如：

$ pip list | grep -i "yaml\|qt"  
PyYAML      3.13               
QtPy        1.5.2

• pyyaml (pip install pyyaml)，但导入 yaml
• qtpy (pip install qtpy)，是的，导入是 qtpy 但包是 QtPy

一些工具无法处理，例如 sphinx：

$ make html
WARNING: autodoc: failed to import module 'wireshark' from module 'logcollector.plugins'; the following exception was raised:
No module named 'qtpy'

我现在不记得了，但是对于扫描requirements.txt文件并打印yaml未安装包的警告的工具也是如此（但它是，它的名称是 pyyaml）。

我尝试使用以下命令编译 python3.6：

emc@belvedere:~/py36/Python-3.6.0rc1> ./configure --prefix=/home/emc/py36 --with-system-expat --with-system-expat --with-system-ffi --disable-ipv6 && make && make install

编译成功我可以开始解释了：

emc@belvedere:~/py36/bin> ./python3.6
Python 3.6.0rc1 (default, Dec 14 2016, 13:08:45) 
[GCC 4.8.1 20130909 [gcc-4_8-branch revision 202388]] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 

但：

emc@belvedere:~/py36/bin> pip3.6 
Traceback (most recent call last):
  File "/home/emc/py36/lib/python3.6/site-packages/pip/_vendor/requests/packages/__init__.py", line 27, in <module>
    from . import urllib3
  File "/home/emc/py36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py", line 8, in <module>
    from .connectionpool import (
  File "/home/emc/py36/lib/python3.6/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py", line 7, in <module>
    from socket import error …

我需要来自COLOUR_*的打印值(即CadetBlue)随机变量*我试过"

echo $COLOUR_${NUMBER}
echo "$COLOUR_${NUMBER}"

和许多其他人都没有工作.

我有打击:

#!/bin/bash
NUMBER=$[ ( $RANDOM % 9 )  + 1 ]
echo $NUMBER

COLOUR_1=AliceBlue
COLOUR_2=AntiqueWhite
COLOUR_3=AntiqueWhite1
COLOUR_4=AntiqueWhite2
COLOUR_5=AntiqueWhite3
COLOUR_6=AntiqueWhite4
COLOUR_7=BlanchedAlmond
COLOUR_8=BlueViolet
COLOUR_9=CadetBlue

echo $COLOUR_$NUMBER