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MySQL “incorrect string value” error when save unicode string in Django
... automatically.
#! /usr/bin/env python
import MySQLdb
host = "localhost"
passwd = "passwd"
user = "youruser"
dbname = "yourdbname"
db = MySQLdb.connect(host=host, user=user, passwd=passwd, db=dbname)
cursor = db.cursor()
cursor.execute("ALTER DATABASE `%s` CHARACTER SET 'utf8' COLLATE 'utf8_unic...
Python: How would you save a simple settings/config file?
...host:::localhost:::<type 'str'>
x user:::root:::<type 'str'>
x passwd:::my secret password:::<type 'str'>
x db:::write-math:::<type 'str'>
Section: other
x preprocessing_queue:::["preprocessing.scale_and_center",
"preprocessing.dot_reduction",
"preprocessing.connect_lines"]::...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...t know what your postgres user's password is? Change it like this:
1) Run passwd as a superuser:
$ sudo passwd postgres
2) Enter your accounts password for sudo (nothing to do with postgres):
[sudo] password for starkers: myaccountpassword
3) Create the postgres account's new passwod:
Enter ...
vim 命令与快捷键 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...I：行首a:光标前A:行末o:光标后插入新行O:光标上插入新行定位h:leftj:downk:upl:right$:行尾0：行首H:...:set nu 设置行号
插入命令
i：光标后
I：行首
a:光标前
A:行末
o:光标后插入新行
O:光标上插入新行
定位
h:left
j:down
k:up
l:ri...
VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...度至今，如果要评选市面上最火的前三大行业，VR行业肯定位列其中。哪怕在去年年初，估计大部分人还不知道VR是虚拟现实的英文缩写，但时至今日，几乎人必谈VR，那么，这个虚拟现实，真的能够给从业者带来现实的财富吗？...
【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...
...</font>比较不同类别的值，例如不同情绪的天数。较高的柱表示较大的值。
<font class="text-color-8" color="#00bcd4">饼状图</font>最适合将部分与整体进行比较，比如一个月内不同情绪的比例，或者预算中不...
Reading specific lines only
...above:
>>> import linecache
>>> linecache.getline('/etc/passwd', 4)
'sys:x:3:3:sys:/dev:/bin/sh\n'
Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based.
If the file might be very large, and cause problems whe...
90后创业四年:曾经觉得不公 后来愿赌服输 - 资讯 - 清泛网 - 专注C/C++及内核技术
...品。
我现在在做一个音乐图片社交产品“听画”，它的定位和目标很清晰。我们掌握了一项技术，用人工智能的方法让机器创作出曲子来。用户在听画App上传一张照片，我们能用人工智能技术为每张照片配上属于它的原创音乐...
Bash script - variable content as a command to run
...
line=$((${RANDOM} % $(wc -l < /etc/passwd)))
sed -n "${line}p" /etc/passwd
just with your file instead.
In this example I used the file /etc/password, using the special variable ${RANDOM} (about which I learned here), and the sed expression you had, only di...
How do I connect to a MySQL Database in Python?
... user="john", # your username
passwd="megajonhy", # your password
db="jonhydb") # name of the data base
# you must create a Cursor object. It will let
# you execute all the queries you need
cur = db.cursor()
# Use all the S...