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How to check whether a file or directory exists?
...or directory exists
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { return true, nil }
if os.IsNotExist(err) { return false, nil }
return false, err
}
Edited to add error handling.
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Bundling data files with PyInstaller (--onefile)
... base_path = sys._MEIPASS
except Exception:
base_path = os.path.abspath(".")
return os.path.join(base_path, relative_path)
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NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...C++开发插件,示例环境：VS2013Update4参考资料[3]来做S1:新建一个空的C++DLL项目，nsMessageBoxPlugin.S2:复制C: Program File...Q 如何使用C++开发插件,示例
环境：VS2013Update4
参考资料[3]来做
S1:新建一个空的C++DLL项目，nsMessageBoxPlugin.
S2:复制...
Ubuntu下CodeBlock开发环境配置 - C/C++ - 清泛网 - 专注C/C++及内核技术
...行环境的配置：
这里笔者先以Qt4的开发配置为例，Qt是一个跨平台的C++应用程序框架，具有少编程、多创造、尽使用的特点，个人感觉功能比较强大，API使用比MFC简单，对Linux编程感兴趣的不妨试试（当然Linux下编程选择还是比...
Maximum Java heap size of a 32-bit JVM on a 64-bit OS
The question is not about the maximum heap size on a 32-bit OS, given that 32-bit OSes have a maximum addressable memory size of 4GB, and that the JVM's max heap size depends on how much contiguous free memory can be reserved.
...
Finding Number of Cores in Java
...ly available to the JVM (at startup I guess). Using CPU affinity the user/OS can restrict the number of "cores" a JVM sees. You can even do it on a running JVM but I'm not too sure how this influence availableProcessors().
– SyntaxT3rr0r
Jan 21 '11 at 16:17
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How to use “/” (directory separator) in both Linux and Windows in Python?
...
Use os.path.join().
Example: os.path.join(pathfile,"output","log.txt").
In your code that would be: rootTree.write(os.path.join(pathfile,"output","log.txt"))
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Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的优势。
最先将Nginx，Lua组合到一起的是OpenResty，它有一个ngx_lua模块，将Lua嵌入到了Nginx里面；随后Tengine也包含了ngx_lua模块。至于二者的区别：OpenResty是Nginx的Bundle；而Tengine则是Nginx的Fork。值得一提的是，OpenResty和Tengine均是...
How to get all of the immediate subdirectories in Python
...;dr:
Always use scandir:
list_subfolders_with_paths = [f.path for f in os.scandir(path) if f.is_dir()]
Bonus: With scandir you can also simply only get folder names by using f.name instead of f.path.
This (as well as all other functions below) will not use natural sorting. This means results w...
表格布局中添加一个按钮，然后Ctrl C + V复制按钮就会崩溃，MIT也一样。 - ...
表格布局中添加一个按钮，然后Ctrl C + V复制按钮就会崩溃，MIT也一样。