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How does `scp` differ from `rsync`?
...able on a Unix-like system, so you prevent an annoying "command not found" now and then.
– Rafa
May 6 '14 at 21:58
3
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What is the good python3 equivalent for auto tuple unpacking in lambda?
...s, key=lambda p: (lambda x,y: (x*x + y*y))(*p))
update Python 3.8
As of now, Python 3.8 alpha1 is available, and PEP 572- assignment expressions are implemented.
So, if one uses a trick to execute multiple expressions inside a lambda - I usually do that by creating a tuple and just returning the...
Should I implement __ne__ in terms of __eq__ in Python?
...e other side, not self == other is (assuming the operand's __eq__ doesn't know how to compare the other operand) implicitly delegating to __eq__ from the other side, then inverting it. For weird types, e.g. the SQLAlchemy ORM's fields, this causes problems.
– ShadowRanger
...
print call stack in C or C++
... we can reach native speeds with compile code, but I'm lazy to test it out now: How to call assembly in gdb?
main.cpp
void my_func_2(void) {}
void my_func_1(double f) {
my_func_2();
}
void my_func_1(int i) {
my_func_2();
}
int main() {
my_func_1(1);
my_func_1(2.0);
}
main.gdb
...
When and why are database joins expensive?
... on you) and are indignantly setting hand to keyboard to tell me that you know for a fact that denormalisation is faster, sorry but you're living in one of the special cases - specifically, the case where you process all of the data, in-order. It's not a general case, and you are justified in your s...
How to select from subquery using Laravel Query Builder?
...misspelt the name, it should have been selectSub. I've updated my response now.
– Sasa Blagojevic
Sep 26 '18 at 7:39
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What is the difference between declarative and procedural programming paradigms?
...er the time when developers needs to use command lines to add two numbers? Now you can get SUM of two or more numbers with just a simple function. So in my perspective, if there is no "Get me a cup of tea" command, you need to created it. When the next person will try to use, it will be there. That'...
How to copy DLL files into the same folder as the executable using CMake?
...se CMake for generating the Visual Studio files of our sources in our SVN. Now my tool requires some DLL files to be in the same folder as the executable. The DLL files are in a folder alongside the source.
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Python - List of unique dictionaries
... this is overkill; @gnibbler's solution would be faster and easier.
EDIT: Now there is a comment from André Lima explicitly saying that if the ID is a duplicate, it's safe to assume that the whole dict is a duplicate. So this answer is overkill and I recommend @gnibbler's answer.
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How do I fix the “You don't have write permissions into the /usr/bin directory” error when installin
...following content:
:gemdir:
- ~/.gem/ruby
install: -n /usr/local/bin
Now you can run your command normally without the -n flag.
Enjoy!
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