Is there a built-in function/operator I could use to unpack values from a dictionary and assign it into instance variables? This is what I intend to do: c = MyClass() c.foo = 123 c.bar = 123 # c.foo == 123 and c.bar == 123 d = {'bar': 456} c.update(d) # c.foo == 123 and c.bar == 456 Something akin to dictionary update() which loa...
In python, I can do something like this: List=[3, 4] def Add(x, y): return x + y Add(*List) #7 Is there any way to do this or something similar in C#? Basically I want to be able to pass a List of arguments to an arbitrary function, and have them applied as the function's parameters without manually unpacking the List and callin...
im using maven-war-plugin and sometimes i get Unexpected end of ZLIB input stream when deploying to jboss, its because file is made in jboss directory and not moved/copied there, is there any way to fix it(using maven)? my configuration: <build> <plugins> <plugin> <artifactId>maven-war-plugin</artifactId> <configur...
I am developing a library that uses one or more helper executable in the course of doing business. My current implementation requires that the user have the helper executable installed on the system in a known location. For the library to function properly the helper app must be in the correct location and be the correct version. I wo...
EDIT: I am basically running into the following documented issue. I am using the maven assembly plugin to generate a jar file that includes my dependencies so that my project can be run from a single file. However, the jar file is not being built properly it seems. The below was an attempt to try and work around the issue. Has anyone ru...
Hi everyone, I created little download application with music player and now I want it to unpack archives, because quite often mp3s are packed in archive and you can play them before you unpack the archive. I found solution for .zip files on iPhone here on stackoverflow, but I'm wondering if there's a way to unpack .rar files, or other t...
I'm frequently using shift to unpack function parameters: sub my_sub { my $self = shift; my $params = shift; .... } However, many on my colleagues are preaching that shift is actually evil. Could you explain why I should prefer sub my_sub { my ($self, $params) = @_; .... } to shift? ...
I am a newbie to Python. Consider the function str.partition() which returns a 3-tuple. If I am interested in only elements 0 and 2 of this tuple, what is the best way to pick only certain elements out of such a tuple? I can currently do either: # Introduces "part1" variable, which is useless (part0, part1, part2) = str.partition(' ') ...
I'm using the os.path.split() function on a path in my program to get the filename and pathname of a file then passing them into another method, but my current solution seems rather ugly: path = os.path.split(somefile) some_class(path[0], path[1]) Is it possible to unpack the path tuple in a cleaner way within the call to some_class? ...
Hi, is there a javascript equivalent to unpack sequences like in python (a,b=(1,2))? Thanks in advance. ...
I'm attempting to upgrade the friendly_id gem in a rails project. I have removed the old gem from the vendor directory, installed the new gem from rubygems.org. When I type: rake gems:unpack I get the following response: ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions into the /usr/lib...
Let's say I have a method definition like this: def myMethod(a, b, c, d, e) Then, I have a variable and a tuple like this: myVariable = 1 myTuple = (2, 3, 4, 5) Is there a way I can pass explode the tuple so that I can pass its members as parameters? Something like this (although I know this won't work as the entire tuple is consid...
I have a tuple of tuples - for example: tupleOfTuples = ((1, 2), (3, 4), (5,)) I want to convert this into a flat, one-dimensional list of all the elements in order: [1, 2, 3, 4, 5] I've been trying to accomplish this with list comprehension. But I can't seem to figure it out. I was able to accomplish it with a for-each loop: myLi...
Suppose I have a tuple in a list like this: >>> t = [("asdf", )] I know that the list always contains one 1-tuple. Currently I do this: >>> dummy, = t >>> value, = dummy >>> value 'asdf' Is there a shorter and more elegant way to do this? ...
Hi, is to possible to "pack" arguments in python? I have the following functions in the library, that I can't change (simplified): def g(a,b=2): print a,b def f(arg): g(arg) I can do o={'a':10,'b':20} g(**o) 10 20 but can I/how do I pass this through f? That's what I don't want: f(**o) Traceback (most recent call last): ...
I am confused by the use of the ellipsis (...) in some functions, i.e. how to pass an object containing the arguments as a single argument. In Python it is called "unpacking argument lists", e.g. >>> range(3, 6) # normal call with separate arguments [3, 4, 5] >>> args = [3, 6] >>> range(*args) # call with argumen...