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How to reliably open a file in the same directory as a Python script
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I always use:
__location__ = os.path.realpath(
os.path.join(os.getcwd(), os.path.dirname(__file__)))
The join() call prepends the current working directory, but the documentation says that if some path is absolute, all other paths left of it are dro...
What are the differences between virtual memory and physical memory?
...r head around have to do with specific implementations of virtual memory, most likely paging. There is no one way to do paging - there are many implementations and the one your textbook describes is likely not the same as the one that appears in real OSes like Linux/Windows - there are probably subt...
Should I use `import os.path` or `import os`?
According to the official documentation , os.path is a module. Thus, what is the preferred way of importing it?
6 Answer...
Installing Java on OS X 10.9 (Mavericks)
I have installed the JDK on Mac OS X v10.8 (Mountain Lion). When I upgraded it to Mac OS X v10.9 (Mavericks) and ran java -version in the terminal, it showed:
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Why is the apt-get function not working in the terminal on Mac OS X v10.9 (Mavericks)?
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Mac OS X doesn't have apt-get. There is a package manager called Homebrew that is used instead.
This command would be:
brew install python
Use Homebrew to install packages that you would otherwise use apt-get for.
The page I li...
Reading a file line by line in Go
... From the docs: "ReadLine is a low-level line-reading primitive. Most callers should use ReadBytes('\n') or ReadString('\n') instead or use a Scanner."
– mdwhatcott
Mar 18 '14 at 23:20
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What is an OS kernel ? How does it differ from an operating system? [closed]
...System while for a programmer the Linux kernel itself is a perfectly valid OS depending on what you're trying to achieve. For instance embedded systems are mostly just kernel with very small number of specialized processes running on top of them. In that case the kernel itself becomes the OS itself....
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...
How to find the Windows version from the PowerShell command line
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Since you have access to the .NET library, you could access the OSVersion property of the System.Environment class to get this information. For the version number, there is the Version property.
For example,
PS C:\> [System.Environment]::OSVersion.Version
Major Minor Build Revisi...
Automatically creating directories with file output [duplicate]
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The os.makedirs function does this. Try the following:
import os
import errno
filename = "/foo/bar/baz.txt"
if not os.path.exists(os.path.dirname(filename)):
try:
os.makedirs(os.path.dirname(filename))
except OS...