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Element-wise addition of 2 lists?
...
Use map with operator.add:
>>> from operator import add
>>> list( map(add, list1, list2) )
[5, 7, 9]
or zip with a list comprehension:
>>> [sum(x) for x in zip(list1, list2)]
[5, 7, 9]
Timing comparisons:
>>> list2 = [4, 5,...
Executing multiple commands from a Windows cmd script
... near the beginning of the EXE file). If you start a GUI-based application from the command line it always appears to end immediately since it is completely detached from the command-line. If you start a command-based program from a GUI program (like Explorer) it will always show a new command line....
When do you use map vs flatMap in RxJava?
...another.
flatMap transform one event to zero or more event. (this is taken from IntroToRx)
As you want to transform your json to an object, using map should be enough.
Dealing with the FileNotFoundException is another problem (using map or flatmap wouldn't solve this issue).
To solve your Excepti...
How do I execute a string containing Python code in Python?
...re concerned with using exec at all (unless you know the code string comes from a trusted source).
– bruno desthuilliers
Dec 2 '19 at 17:00
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Prevent direct access to a php include file
...called ".htaccess" in the directory you don't want to be accessible:
Deny from all
If you actually have full control of the server (more common these days even for little apps than when I first wrote this answer), the best approach is to stick the files you want to protect outside of the director...
Break or return from Java 8 stream forEach?
...n using external iteration over an Iterable we use break or return from enhanced for-each loop as:
13 Answers
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Is there a way to remove the separator line from a UITableView?
... You can change the view by implementing tableView:viewForHeaderInSection: from the UITableViewDelegate protocol.
– Bart Jacobs
Jul 27 '13 at 7:48
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Difference between private, public, and protected inheritance
...d inheritance. Let's consider a class Base and a class Child that inherits from Base.
If the inheritance is public, everything that is aware of Base and Child is also aware that Child inherits from Base.
If the inheritance is protected, only Child, and its children, are aware that they inherit fro...
How do I use vimdiff to resolve a git merge conflict?
...EMOTE) is how the file looked in your source branch (where you are merging from). The middle buffer (BASE) is the common ancestor of the two (so you can compare how the left and right versions have diverged from each other).
I may be mistaken on the following point. I think the source of the merge ...
Multiprocessing: How to use Pool.map on a function defined in a class?
... to circumvent this. It appears to work, even for recursive use of parmap.
from multiprocessing import Process, Pipe
from itertools import izip
def spawn(f):
def fun(pipe, x):
pipe.send(f(x))
pipe.close()
return fun
def parmap(f, X):
pipe = [Pipe() for x in X]
proc ...