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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
Recently I am using Python module os, when I tried to change the permission of a file, I did not get the expected result. For example, I intended to change the permission to rw-rw-r--,
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Determining Whether a Directory is Writeable
...or the user executing the script? Since this will likely involve using the os module I should mention I'm running it under a *nix environment.
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How to detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor? [duplicate]
If there's some cross-platform C/C++ code that should be compiled on Mac OS X, iOS, Linux, Windows, how can I detect them reliably during preprocessor process?
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Python subprocess/Popen with a modified environment
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I think os.environ.copy() is better if you don't intend to modify the os.environ for the current process:
import subprocess, os
my_env = os.environ.copy()
my_env["PATH"] = "/usr/sbin:/sbin:" + my_env["PATH"]
subprocess.Popen(my_comm...
Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
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You can use the os/signal package to handle incoming signals. Ctrl+C is SIGINT, so you can use this to trap os.Interrupt.
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func(){
for sig := range c {
// sig is a ^C...
Python recursive folder read
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Make sure you understand the three return values of os.walk:
for root, subdirs, files in os.walk(rootdir):
has the following meaning:
root: Current path which is "walked through"
subdirs: Files in root of type directory
files: Files in root (not in subdirs) of type other ...
微博为什么限制140字(附短信70字限制考) - 创意 - 清泛网 - 专注C/C++及内核技术
...了吗 (update:它已经复活了)”开始把140字沿用至今，成为一个不成文的规定，没什么特别的就不需要改，倒是网易在这一点上走了个歪路。
当然不只我一个纠结过这个问题，这篇关于中文微博140字的博文分析原因可能是“一方面...
How to get an absolute file path in Python
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>>> import os
>>> os.path.abspath("mydir/myfile.txt")
'C:/example/cwd/mydir/myfile.txt'
Also works if it is already an absolute path:
>>> import os
>>> os.path.abspath("C:/example/cwd/mydir/myfile.txt")
'C:...
十年磨一“饼” 一个70后连续创业者的心路历程 - 资讯 - 清泛网 - 专注C/C+...
十年磨一“饼” 一个70后连续创业者的心路历程打造“卷饼界的星巴克”是作者的梦想，他总结了在团队管理上最有感触的7点心得，分享给同样在创业路上乐此不疲的你们！文章开头还是先介绍下自己，我的名字叫“燕翔”，...
为什么我们程序员写不出好代码？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...换时间，才能再重新投入到编码工作上，你很有可能需要一个小时的过渡。
2.回复所有的电子邮件
如果会议已经够糟糕的了，那么没完没了的邮件可能更让人头疼。经过几个小时的来回讨论，最终却没有个结果。
3.衡量生产...