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How far can memory leaks go?
...y processes when they exit." Not strictly true. For example, on (at least) Linux, SysV semaphores and other IPC objects are not cleaned up on process exit. That's why there's ipcrm for manual cleanup, linux.die.net/man/8/ipcrm .
– sleske
Mar 18 '13 at 9:07
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What Every Programmer Should Know About Memory?
... memory: how CPU cache works, what are physical and virtual memory and how Linux kernel deals that zoo. Probably there are outdated API references in some examples, but it doesn't matter; that won't affect the relevance of the fundamental concepts.
So, any book or article that describes something f...
Fast way of finding lines in one file that are not in another?
... a file that was generated in Windows against a file that was generated in Linux and it seemed like comm wasn't working at all. It took me a while to figure out that it's about the line endings: even lines that look identical are considered different if they have different line endings. The command ...
Concatenating two one-dimensional NumPy arrays
...oncatenate(a1, a2, a3) or numpy.concatenate(*[a1, a2, a3]) if you prefer. Python's fluid enough that the difference ends up feeling more cosmetic than substantial, but it's good when the API is consistent (e.g. if all the numpy functions that take variable length argument lists require explicit seq...
What is tail call optimization?
... an iterative loop. You can prefer imperative style. Many languages (Java, Python) doesn't provide TCO, then you have to know that a functional call costs memory... and the imperative style is prefered.
– mcoolive
Nov 7 '16 at 12:41
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How does JavaFX compare to WPF? [closed]
... to Silverlight other than I've had trouble getting Silverlight to work on Linux, but did get JavaFX working on Linux.
Here's another related question.
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rreplace - How to replace the last occurrence of an expression in a string?
Is there a quick way in Python to replace strings but, instead of starting from the beginning as replace does, starting from the end? For example:
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How to set the matplotlib figure default size in ipython notebook?
I use "$ipython notebook --pylab inline" to start the ipython notebook. The display matplotlib figure size is too big for me, and I have to adjust it manually. How to set the default size for the figure displayed in cell?
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Asking the user for input until they give a valid response
...er enters data that can't be parsed.
while True:
try:
# Note: Python 2.x users should use raw_input, the equivalent of 3.x's input
age = int(input("Please enter your age: "))
except ValueError:
print("Sorry, I didn't understand that.")
#better try again... Re...
How do I provide a username and password when running “git clone git@remote.git”?
... you can also type 'space' at the beginning of the line so that linux won't store the command in history
– Nicolas Zozol
Feb 17 '16 at 8:36
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