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What does 'stale file handle' in Linux mean?
...ory. Through another terminal, I delete that directory and restore it back from an identical backup. When I try to vim a file from the first terminal, in the same directory, why do I get an error about a stale file handle? What does it mean? (On a side note, I have found that it is possible to byp...
Full screen in WPF application
...le dimensions.
I'd like my application to run in full screen independently from its dimensions.
2 Answers
...
Concatenating Files And Insert New Line In Between Files
...is has the distinct flaw that there will be empty lines either at the end (from the first alternative) or in the beginning (second alternative). You can easily guard against this with awk 'FNR==1 && NR > 1 ...' instead, though.
– tripleee
Feb 16 '16...
Why is the order in dictionaries and sets arbitrary?
...s,
How CPython's hash set is stored in memory and
How numbers get hashed
From the top:
A hash set is a method of storing random data with really fast lookup times.
It has a backing array:
# A C array; items may be NULL,
# a pointer to an object, or a
# special dummy object
_ _ 4 _ _ 2 _ _ 6
W...
Service Temporarily Unavailable Magento?
... I've faced the same problem after unsuccessful install of a module from magento connect. Deleting the file worked.
– Mohammad Faisal
Jul 19 '14 at 5:38
...
Eclipse, regular expression search and replace
...
search = (^.*import )(.*)(\(.*\):)
replace = $1$2
...replaces ...
from checks import checklist(_list):
...with...
from checks import checklist
Blocks in regex are delineated by parenthesis (which are not preceded by a "\")
(^.*import ) finds "from checks import " and loads it to $1 (...
Import SQL dump into PostgreSQL database
...
@Dazz You have to do this command from your command prompt (Start -> Run -> cmd) , not from the postgres prompt.
– Jacob
Jul 27 '11 at 10:48
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How to get back to the latest commit after checking out a previous commit?
...arly, origin is the default name of the remote that a repository is cloned from, but there's nothing special about it.
– Phil Miller
Feb 3 '12 at 21:54
3
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Why is “if not someobj:” better than “if someobj == None:” in Python?
...An empty string is false."
False, 0, (), [], {} and "" are all different from None, so your two code snippets are not equivalent.
Moreover, consider the following:
>>> False == 0
True
>>> False == ()
False
if object: is not an equality check. 0, (), [], None, {}, etc. are all...
How to check that an element is in a std::set?
...his works with more containers but requires std::begin and std::end
// from C++0x, which you can get either:
// 1. By using a C++0x compiler or
// 2. Including the utility functions below.
return contains(std::begin(container), std::end(container), value);
// This works pre-C+...