hao | 使用 Vue 写的导航网站 - A simple navigation site project | Command Line Interface library
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A simple navigation site project.
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QUESTION
Ni Hao, I am trying to read cryptocurrencies price in python. I tried to install cryptocompare module, but using the following codes in Anaconda prompt did not work:
...ANSWER
Answered 2021-Mar-10 at 09:22Try with pip
QUESTION
I am trying to create a two column layout in Flutter which has a ListView on the left and three containers in a column on the right. The problem I have is that the containers on the right need to be able to expand as the data changes, which eventually causes a RenderFlex overflow.
With the SingleChildScrollView, the column scroll OK, but once it goes over the viewport constraints, I get the error. I have set the height of the row using a MediaQuery, but this does not seem to have an effect. The sample code below simulates the situation... Click the add button in the AppBar to increase the size of the text in the containers.
...ANSWER
Answered 2021-Feb-03 at 00:12QUESTION
I would like to classify all the three phrases as Chinese, 'zh'
using fastText.
ANSWER
Answered 2021-Jan-15 at 09:23I do not think this is a fair assessment of the FastText model. It was trained on much longer sentences than you are using for your quick test, so is a sort of train-test data mismatch. I would also guess that most of the Chinese data that the model used at the training time were not in Latin script and there it might have problems with it.
There exist other models for language identification:
langid.py uses simple trigram statistics.
langdetect is a port of an old open-source project by Google that uses a simple ML model over character statistics.
Spacy has a language detection extension.
Polyglot toolkit for multilingual NLP also has language detection.
However, I would suspect that all of them will have problems with such short text snippets. If this is really how your data look like, then the best thing would be training your own FastText model with the training data matching your use case. For instance, if you are only interested in detecting Chinese, you can classify into two classes: Chinese and non-Chinese.
QUESTION
So I am currently working on understanding how to Receive Side Scaling (RSS) Offloads work inside DPDK (Data Plane Development Kit). So basically from my understanding depending on which offload you have selected, it calculates a Hash value and uses that to place your packet for processing on a specific Queue, which is binded to a specific CPU Core.
So I have 2 Queries regarding this:
When I use RSS offload of
**ETH_RSS_IPV6_EX**
, I am unable to get a Hash value other than Zero, meaning the packet is considered invalid in accordance to the RSS Offload selected, even though my Mellanox card supports this offload. I have sent the following Scapy packet but still hash is coming to be 0:sendp(Ether(dst="AA:AA:BB:BB:CC:DD")/IPv6(dst="a:a:a:a:a:a:a:b",src="a:a:a:a:a:a:a:c",nh=60)/IPv6ExtHdrDestOpt(nh=43,options=HAO(hoa="a:a:a:a:a:a:a:d"))/IPv6ExtHdrRouting(nh=59,type=2,addresses=["a:a:a:a:a:a:a:e"]),iface="enp4s0f0",count=1)
. (On which packets to manipulate I got this resource from https://docs.microsoft.com/en-us/windows-hardware/drivers/network/rss-hashing-types#ndis_hash_ipv6_ex, but I believe there might be a difference between these RSS Offloads and the ones DPDK has.) What does this EX term mean in the RSS Offload.Apart from that, can someone point me to a resource that explains the RSS Offloads, one at a time, that are inside the DPDK, some of them being the following (If you have an understanding of these, providing a jest of them can also be helpful):
...
ANSWER
Answered 2020-Nov-27 at 07:51As explained in the comments, ETH_RSS_IPV6_EX
is a generic place holder. Not all drivers support the same. So depending upon PMD, driver and firmware extended features
like RSS based on SRC-IP/DST-IP or some part of fields will be supported. example ETH_RSS_IPV6_TCP
will be used if IPV6 has TCP in it and ETH_RSS_IPV6_TCP_EX
will use if TCP is extended header.
note: igb and ixgbe supports _EX
while i40e does not, you check intel NIC. DPDK mail thread discussion. Hence do not expect every NIC will has same features set for RSS
QUESTION
I have learned that synchronized in static method and Class are the same thing, they are both class level lock.
Then I try to write a demo program:
...ANSWER
Answered 2020-Sep-08 at 01:15See JVM Specification §17.1 - the VM sees the 'synchronized' keyword and does the monitorenter
implicitly. There are 2 ways to obtain the lock on an object in java bytecode: Either via a synchronized
keyword, or via a MONITORENTER
bytecode, it's as simple as that.
QUESTION
I am creating a little helper tool. It is a timer decorator (not so special) for measuring the execution times of any method.
It prints the calculated execution time on the console with useful informations.
...ANSWER
Answered 2020-Jun-21 at 21:22Try to use func.__qualname__
instead of func.__name__
.
Try to use func.im_class.__name__
to get the name of the class.
Reference: PEP 3155
QUESTION
I am trying to figure out how to create a list of date:vessel tuple combinations from the following data:
- A list of vessels
- A list of vessel arrival dates
- A list of dates in a planning timelines
The (vessel, date) needs to contain all possible vessel:date combinations in the date horizon FROM the vessel arrival date (A vessel cannot leave before it has arrived).
Desired output: Example
...ANSWER
Answered 2020-Jun-17 at 17:22Let's try this:
QUESTION
I was trying to save two files to GCP Storage using the following commands in a Jupyter Notebook:
...ANSWER
Answered 2020-Jun-16 at 01:24QUESTION
so i got this object that i pass as data to my react native flatlist
...ANSWER
Answered 2020-Jun-01 at 03:35forEach
only returns undefined
, no matter what you return in the function.
You could find the element first, and then render it conditionally:
QUESTION
I don't want the button to generate words on click I want the list to be toggle through the list of words whilst the page is loaded, like if it were a short animation clip! here is what i got so far
JS
...ANSWER
Answered 2020-May-07 at 06:42To have a function run on a timer, you can use the setInterval
function described here: https://www.w3schools.com/jsref/met_win_setinterval.asp
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