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Deep copy of a dict in python
I would like to make a deep copy of a dict in python. Unfortunately the .deepcopy() method doesn't exist for the dict . How do I do that?
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New line in text area
...hought macOS, being Unix-based, would still have that issue. But you’re for sure right, the difference is more general.
– SeizeTheDay
Sep 3 '19 at 14:34
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Vsphere 6 集群上 安装 oracle rac 遇到的共享磁盘故障 - 数据库(内核) - ...
...失了，oracle 肯定启动不了
使用脚本重新绑定
for i in b c;
do
echo "KERNEL==\"sd*\", BUS==\"scsi\", PROGRAM==\"/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/\$name\", RESULT==\"`/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sd$i`\", NAM...
Django: Set foreign key using integer?
Is there a way to set foreign key relationship using the integer id of a model? This would be for optimization purposes.
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Confused about __str__ on list in Python [duplicate]
...ting an object uses str(); printing a list containing an object uses str() for the list itself, but the implementation of list.__str__() calls repr() for the individual items.
So you should also overwrite __repr__(). A simple
__repr__ = __str__
at the end of the class body will do the trick.
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“Keep Me Logged In” - the best approach
My web application uses sessions to store information about the user once they've logged in, and to maintain that information as they travel from page to page within the app. In this specific application, I'm storing the user_id , first_name and last_name of the person.
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Can I use Objective-C blocks as properties?
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{
// need to release the block since the property was declared copy. (for heap
// allocated blocks this prevents a potential leak, for compiler-optimized
// stack blocks it is a no-op)
// Note that for ARC, this is unnecessary, as with all properties, the memory management is handled ...
How to calculate the SVG Path for an arc (of a circle)
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Expanding on @wdebeaum's great answer, here's a method for generating an arced path:
function polarToCartesian(centerX, centerY, radius, angleInDegrees) {
var angleInRadians = (angleInDegrees-90) * Math.PI / 180.0;
return {
x: centerX + (radius * Math.cos(angleInRad...
How can I select rows with most recent timestamp for each key value?
...amp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields.
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How to list all users in a Linux group?
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Unfortunately, there is no good, portable way to do this that I know of. If you attempt to parse /etc/group, as others are suggesting, you will miss users who have that group as their primary group and anyone who has been adde...