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Locking a file in Python
.../ DOS systems.
try:
# Posix based file locking (Linux, Ubuntu, MacOS, etc.)
import fcntl, os
def lock_file(f):
fcntl.lockf(f, fcntl.LOCK_EX)
def unlock_file(f):
fcntl.lockf(f, fcntl.LOCK_UN)
except ModuleNotFoundError:
# Windows file locking
import msvcrt, os...
Using a dictionary to count the items in a list [duplicate]
...he silliness of some of the other users suggesting to import new libraries etc.
– ntk4
Sep 23 '16 at 5:56
you could si...
git recover deleted file where no commit was made after the delete
...
The output tells you what you need to do. git reset HEAD cc.properties etc.
This will unstage the rm operation. After that, running a git status again will tell you that you need to do a git checkout -- cc.properties to get the file back.
Update:
I have this in my config file
$ git config a...
MySQL: Fastest way to count number of rows
...note that if you need the data anyway and only want a count for pagination/etc. it is more efficient to get the data then count the rows in your program.
– Tyzoid
Aug 1 '13 at 20:16
...
CocoaPods and GitHub forks
...lity I added here:
https://github.com/getaaron/TTTAttributedLabel
In order to use this in a Cocoapods project, I:
Push my changes to my fork
Configure my Podfile to get the changes & update
Once you've pushed your changes to your fork, get the SHA of your last commit. You can do this ...
List comprehension vs. lambda + filter
...terator object, so you'd have to pass your filter method call to list() in order to build the filtered list. So in python 2:
lst_a = range(25) #arbitrary list
lst_b = [num for num in lst_a if num % 2 == 0]
lst_c = filter(lambda num: num % 2 == 0, lst_a)
lists b and c have the same values, and wer...
what's the meaning of '=?' in angularJS directive isolate scope declaration?
..._EXPRESSION exception. You can avoid this behavior
using =? or =?attr in order to flag the property as optional.
It should trigger the expected error on every digest that affects the scope property:
parentSet = parentGet.assign || function() {
// reset the change, or we will throw this exceptio...
Receiving login prompt using integrated windows authentication
... Windows 10 (1803 and later?) also require this
configuration setting in order to authenticate locally.
This one took me awhile because everyone else's comments here failed to help me. I found this article and it fixed it!
...
Can I convert long to int?
...he unchecked keyword (as shown in this answer and @ChrisMarisic's comment, etc.) is not needed, and int myIntValue = (int)myLongValue is exactly equivalent. However do note that regardless of whether you use the unchecked keyword or not, you're getting the non-mathematical rude truncation behavior d...
PHP - concatenate or directly insert variables in string
...tuations when you want to embed object properties, multidimentional arrays etc.
That is, generally when reading embedded vars, you cannot be instantly 100% sure of the final behavior of what you are reading.
You frequently need add crutches such as {} and \, which IMO adds confusion and makes concat...