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How can I time a code segment for testing performance with Pythons timeit?
...e and after the block you want to time.
import time
t0 = time.time()
code_block
t1 = time.time()
total = t1-t0
This method is not as exact as timeit (it does not average several runs) but it is straightforward.
time.time() (in Windows and Linux) and time.clock() (in Linux) are not precise eno...
Move all files except one
... For ZSH user, instead of using shopt (which will give command not found error), add this to your .zshrc: setopt extended_glob then the syntax for glob will also change accordingly. Thus use mv ~/path/to/source^(exception) ~/path/to/target/folder should do
– Alex Xiong
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6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...要动用C++的编译器g++才能编程通过。
hello1.c
#define _________ }
#define ________ putchar
#define _______ main
#define _(a) ________(a);
#define ______ _______(){
#define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
#define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _...
OS X: equivalent of Linux's wget
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edited Sep 3 '17 at 20:05
Mark Amery
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an...
Shell command to sum integers, one per line?
...od times. :)
– L S
Mar 7 '12 at 16:05
2
just used this for a: count all documents’ pages scrip...
What is a Python equivalent of PHP's var_dump()? [duplicate]
...ort.
– Paul Biggar
Dec 21 '09 at 18:05
yep, var_export in php and repr in python are somewhat related - that's if you ...
windows下捕获dump之Google breakpad_client的理解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ver进程要先于客户进程启动，否则客户进程就会因为管道连接不上而使用进程内dump捕获。
进程内、外dump捕获，都是异步而阻塞的，异步具体是说，进程内dump会让写dump、回调通知使用者写dump完成在另一个安全的线程中做；进...
How to check BLAS/LAPACK linkage in NumPy and SciPy?
... affairs?
– dmytro
Jan 19 '13 at 15:05
4
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What is /dev/null 2>&1?
... I usually just use > for that reason.)
2>&1 redirects standard error (2) to standard output (1), which then discards it as well since standard output has already been redirected.
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How to generate a random string in Ruby
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This spits out an error for me in Rails 4 and Ruby 2.1.1: NameError: undefined local variable or method length' for main:Object`
– kakubei
Nov 14 '14 at 14:52
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