Convenience | .NET Core 5/Angular11/NG-ZORRO 权限管理系统 工作流系统 | Identity Management library
kandi X-RAY | Convenience Summary
kandi X-RAY | Convenience Summary
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Convenience
Convenience Key Features
Convenience Examples and Code Snippets
description = try_get(response, lambda x: x['result']['video'][0]['summary'], compat_str)
video = try_get(response, lambda x: x['result']['video'][0], dict) or {}
description = video.get('summary')
duration = float_or_none(video.get('durationMs'),
def all_to_all_v3(communicator, t, group_assignment=None, timeout_seconds=None):
"""Exchanges tensors mutually.
Args:
communicator: the resource `tf.Tensor` returned from
`initialize_communicator`.
t: a `tf.Tensor`. The first dimen
public static ArrayList convolutionFFT(
ArrayList a, ArrayList b) {
int convolvedSize = a.size() + b.size() - 1; // The size of the convolved signal
padding(a, convolvedSize); // Zero padding both signals
padding(b
def fc_layer(x, num_units, name, use_relu=True):
"""
Create a fully-connected layer
:param x: input from previous layer
:param num_units: number of hidden units in the fully-connected layer
:param name: layer name
:param use_r
Community Discussions
Trending Discussions on Convenience
QUESTION
I have a custom UITextView class that initializes a new TextView. The delegate of this class is itself as I need code to run when the text is changed, the delegate method runs. Here is that class.
...ANSWER
Answered 2021-Jun-15 at 04:34// This is the instance that you should assign secondDelegate for
textField = TextView(hintText: "Type a message")
// Not this one, this one never gets added as a subview
let test = TextView()
test.secondDelegate = self
// The fix is here
textField.secondDelegate = self
self.addSubview(textField)
QUESTION
I'd like to write some unit tests of our mongo code using mongomock as the backend. However, Flask-PyMongo adds a convenience class (find_one_or_404
) on top of the Collection class that means that I can't do a straight-up MongoMock substitution. Any attempts at monkeypatching this function onto the Collection class don't seem to be working (I assume it has something to do with the overridden __getattr__
- every time I try I get TypeError: 'Collection' object is not callable
on db.collection_name.find_one_or_404({})
). What are my options here, besides just not using this function?
ANSWER
Answered 2021-Jun-14 at 16:53The answer was "mocks all the way down" in absentia of a better idea
QUESTION
I have a class that creates a custom UITextView and initializes it with hint text. The problem that I am having is that when I try to set the delegate of the UITextView inside of the initializer, the delegate functions are not called. I am also not completely sure if the textView class should be the delegate. Below is the custom UITextView class:
...ANSWER
Answered 2021-Jun-13 at 21:49My guess is that you aren't actually calling the initializer that you mean to be.
For example, if you call TextView()
, your convenience init
will not be called. It will, however, if you call TextView(hintText: "")
or any other variations of the initializer that you've created.
Secondly, although it's not directly related to the above issue, I question why you're creating another TextView
and assigning it to be the delegate. Why not just assign the delegate to self
?
QUESTION
I'd like to use git submodules to track subprojects. I'd also like to have the subprojects' code directly contained in the parent repo, for convenience. Is it possible to inline a submodule such that the parent repo contains a snapshot of the child repo's content at the submodule's commit?
...ANSWER
Answered 2021-Jun-13 at 17:17Not with submodules. Submodules are always separate repositories.
Try git subtree
. It allows exactly that — to inline a repository inside another. Then you can decide if want to push changed files back to the source repository.
QUESTION
I have a statistics.py
file which has some methods for the class Statistics. Here is how it looks:
ANSWER
Answered 2021-Jun-12 at 12:15Do the same thing that you do for self.__avg
but instead for a self.__max
/ self.__min
- keep the current max/min in a instance variable.
On adding a new value via self.add(..)
check if the new value is bigger as your current and set your self.__max
- do the same for minimal value.
You can init your instance variables to None
to start with.
QUESTION
I am programming a basic fps app on Xcode using Swift. The error comes in my Bitmap.swift file, which is meant to store pixels in a 2D array so that there's a way to represent an entire image in the app.
The code goes as follows:
...ANSWER
Answered 2021-Jun-12 at 04:51You have both a class
and a struct
named Bitmap
. I'm guessing the class
is erroneous, given your description of how you intend to use it.
Remove the class
wrapped around the struct
and remove convenience
, which is not used for struct
s:
QUESTION
It is known that asm volatile ("" ::: "memory")
can serve as a compiler barrier to prevent compiler from reordering assembly instructions across it. For example, it is mentioned in https://preshing.com/20120625/memory-ordering-at-compile-time/, section "Explicit Compiler Barriers".
However, all the articles I can find only mention the fact that asm volatile ("" ::: "memory")
can serve as a compiler barrier without giving a reason why the "memory"
clobber can effectively form a compiler barrier. The GCC online documentation only says that all the special clobber "memory"
does is tell the compiler that the assembly code may potentially perform memory reads or writes other than those specified in operands lists. But how does such a semantic cause compiler to stop any attempt to reorder memory instructions across it? I tried to answer myself but failed, so I ask here: why can asm volatile ("" ::: "memory")
serve as a compiler barrier, based on the semantics of "memory"
clobber? Please note that I am asking about "compiler barrier" (in effect at compile-time), not stronger "memory barrier" (in effect at run-time). For convenience, I excerpt the semantics of "memory"
clobber in GCC online doc below:
...The
"memory"
clobber tells the compiler that the assembly code performs memory reads or writes to items other than those listed in the input and output operands (for example, accessing the memory pointed to by one of the input parameters). To ensure memory contains correct values, GCC may need to flush specific register values to memory before executing theasm
. Further, the compiler does not assume that any values read from memory before anasm
remain unchanged after thatasm
; it reloads them as needed. Using the"memory"
clobber effectively forms a read/write memory barrier for the compiler.
ANSWER
Answered 2021-Jun-11 at 23:37If a variable is potentially read or written, it matters what order that happens in. The point of a "memory"
clobber is to make sure the reads and/or writes in an asm
statement happen at the right point in the program's execution.
Any read of a C variable's value that happens in the source after an asm
statement must be after the memory-clobbering asm
statement in the compiler-generated assembly output for the target machine, otherwise it might be reading a value before the asm statement would have changed it.
Any read of a C var in the source before an asm
statement similarly must stay sequenced before, otherwise it might incorrectly read a modified value.
Similar reasoning applies to assignments to (writes of) C variables before/after any asm
statement with a "memory"
clobber. Just like a function call to an "opaque" function, one who's definition the compiler can't see.
No reads or writes can reorder with the barrier in either direction, therefore no operation before the barrier can reorder with any operation after the barrier, or vice versa.
Another way to look at it: the actual machine memory contents must match the C abstract machine at that point. The compiler-generated asm has to respect that, by storing any variable values from registers to memory before the start of an asm("":::"memory")
statement, and afterwards it has to assume that any registers that had copies of variable values might not be up to date anymore. So they have to be reloaded if they're needed.
This reads-everything / writes-everything assumption for the "memory"
clobber is what keeps the asm
statement from reordering at all at compile time wrt. all accesses, even non-volatile
ones. The volatile
is already implicit from being an asm()
statement with no "=..."
output operands, and is what stops it from being optimized away entirely (and with it the memory clobber).
Note that only potentially "reachable" C variables are affected. For example, escape analysis can still let the compiler keep a local int i
in a register across a "memory"
clobber, as long as the asm statement itself doesn't have the address as an input.
Just like a function call: for (int i=0;i<10;i++) {foobar("%d\n", i);}
can keep the loop counter in a register, and just copy it to the 2nd arg-passing register for foobar every iteration. There's no way foobar can have a reference to i
because its address hasn't been stored anywhere or passed anywhere.
(This is fine for the memory barrier use-case; no other thread could have its address either.)
Related:
- How does a mutex lock and unlock functions prevents CPU reordering? - why opaque function calls work as compiler barriers.
- How can I indicate that the memory *pointed* to by an inline ASM argument may be used? - cases where a
"memory"
clobber is needed for a non-emptyasm
statement (or other dummy operands to tell the asm statement which memory is read / written.)
QUESTION
I added a shiny header dropdown menu button. It will open contents when its button clicked, and close contents if click the button again or click outside of contents. Here is what I would like to achieve:
- When click the dropdown menu button, show the contents and also increase the main page's padding-top to 40px.
- When I click the dropdown menu button again or click anywhere outside of contents, the main page's padding-top is going back to 20px.
This can achieve mostly, but there is one thing still needed to be fixed:
- when we click outside of contents, it will not go to the if else loop. So it will not change paddings. In other words, if we close the content by clicking outside the contents, the paddings will not change until we click the dropdown button again.
How to improve this, or is there a better way? Alternatively, we can avoid closing contents by clicking anywhere outside.
I apologize I am not able to make a reproducible example. Please help at you convenience. Thank you in advance!
...ANSWER
Answered 2021-May-13 at 04:53QUESTION
I am creating a text-based game for a school project. I am a novice and found a pretty good YouTube tutorial. I am following along in the beginning pretty closely so that I may understand better. I've entered this code almost identical to what the tutorial has stated and the code in the tutorial works but mine does not. What am I doing wrong? My output is as follows...
...ANSWER
Answered 2021-Jun-10 at 21:43You are not calling the function intro
in the last line. Instead, you are printing the function object. Change the last line to:
QUESTION
Langid.py is a popular language detection library.
Inside the library's langid.py
file, there's a peculiar way that encodes the binary inside the Python code
ANSWER
Answered 2021-Jun-10 at 19:21You can sort of reverse engineer the serialization process by simply looking at how they decode it.
It is apparent that the operations b64decode
-> decompress
-> loads
are happening. Furthermore, the object that is pickle loaded clearly seems to be a list of lists, numpy arrays, or a mix of other python objects.
From this, if we arrange the operations in opposite, then maybe dumps
-> compress
and b64encode
may have been used?
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