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Pandas percentage of total with groupby
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how to use sed, awk, or gawk to print only what is matched?
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...建议先去看看.开始配置我们来配置一个filter表的防火墙.(1)查看本机关于IPTABLES的设置情况[root@tp ~]...如果你的IPTABLES基础知识还不了解,建议先去看看.
开始配置
我们来配置一个filter表的防火墙.
(1)查看本机关于IPTABLES的设置情...
Python unittests in Jenkins?
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174
sample tests:
tests.py:
# tests.py
import random
try:
import unittest2 as unittest
exce...
How to change border color of textarea on :focus
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.input:focus {
outline: none !important;
border:1px solid red;
box-shadow: 0 0 10px #719ECE;
}
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How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
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while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
Intrigued by this question about infinite loops in perl: while (1) Vs. for (;;) Is there a speed difference? , I decided to run a similar comparison in python. I expected that the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the c...
Extract elements of list at odd positions
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Solution
Yes, you can:
l = L[1::2]
And this is all. The result will contain the elements placed on the following positions (0-based, so first element is at position 0, second at 1 etc.):
1, 3, 5
so the result (actual numbers) will be:
2, 4, 6
Exp...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...ddress" attribute or change it to one of the following IPs:
bind-address="127.0.0.1"
or
bind-address="0.0.0.0"
commenting out "skip-networking"
If there is a "skip-networking" line in your MySQL config file, make it comment by adding "#" sign at the beginning of that line.
change "wait_time...