tokio | Asyncio event loop written in Rust language | Reactive Programming library
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kandi X-RAY | tokio Summary
Asyncio event loop written in Rust language
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tokio Examples and Code Snippets
Lines of Code : 62License : Strong Copyleft (CC BY-SA 4.0)
Copyfor key in data:
data[key].apply(lambda x: convert_to_percentage(x)) # <<==
# should be:
for key in data:
data[key] = data[key].apply(lambda x: convert_to_percentage(x))
def convert_to_percentagefor key in data:
data[key]=data[key].astype("string")
#
#RangeIndex: 2 entries, 0 to 1
#Data columns (total 2 columns):
# # Column Non-Null Count Dtype
#--- ------ -------------- -----
# 0 col1 2data1 = {}
for k,v in data.items():
v1 = v.select_dtypes("O")
v = v.assign(**v1.applymap(remove_typos))
data1[k] = v
print(data1)
{'dataframe_1': col1 col2
0 John 10
1 Ashley -1, 'dataframdata = {k: v.replace([r'\+', '≤'], '', regex=True) for k, v in data.items()}
>>> data['dataframe_1']
col1 col2
0 John 10
1 Ashley -1
>>> data['dataframe_2']
col3 cs.start(h)
s.start(h())
use std::path::Path;
use tokio::fs::File;
// UA string to pass to ClientBuilder.user_agent
let &'static user_agent = "kattis-cli-submit";
let config = get_config().await?;
let client = reqwest::ClientBuilder::new()
.user_agent(usasync fn my_method(s: &str) -> Result {
// do something
}
#[pyfunction]
fn my_sync_method(s: String) -> PyResult {
let mut rt = tokio::runtime::Runtime::new().unwrap();
let mut contents = String::new();
rt.block_RUN apt-get install cargo
from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
colors = ["g", "w", "y", "b", "w", "g"]
texts = ["San Luis","Tupungato", "Tierra Alta", "Tokio", "Cordoba","Sierras de Cordoba"]
# a list of marker shapes
markers =countries1 = list(item['country'] for item in list1)
countries2 = list(item['country'] for item in list2)
compare1 = [country for country in countries1 if country not in countries2] # doesnt exist
compare2 = [country for country in countriCommunity Discussions
Trending Discussions on tokio
QUESTION
Hey, I am working on putting up a rocket rest api with a mongodb database.
I have been able to create a successful connection to the MongoDB Atlas and put the resulting client into the state management of rocket via the manage builder function like this:
ANSWER
Answered 2021-Jun-14 at 20:39This has been resolved. See above for the solution. It is marked with a header saying solution.
QUESTION
I know this question has been asked many times, but I still can't figure out what to do (more below).
I'm trying to spawn a new thread using std::thread::spawn and then run an async loop inside of it.
The async function I want to run:
...ANSWER
Answered 2021-Jun-14 at 17:28#[tokio::main] converts your function into the following:
QUESTION
ANSWER
Answered 2021-Jun-13 at 18:47In order to understand what's going on, I'll reformat the code a bit in order to make it more clear and explicit:
Your original code:
QUESTION
I would like to read a GRIB file downloaded from server using ecCodes library in Rust. However, my current solution results in segmentation fault. The extracted example, replicating the problem, is below.
I download the file using reqwest crate and get the response as Bytes1 using bytes(). To read the file with ecCodes I need to create a codes_handle using codes_grib_handle_new_from_file()2, which as argument requires *FILE usually get from fopen(). However, I would like to skip IO operations. So I figured I could use libc::fmemopen() to get *FILE from Bytes. But when I pass the *mut FILE from fmemopen() to codes_grib_handle_new_from_file() segmentation fault occurs.
I suspect the issue is when I get from Bytes a *mut c_void required by fmemopen(). I figured I can do this like that:
ANSWER
Answered 2021-Jun-12 at 13:291- Try changing
QUESTION
I am using reqwest, and am trying to send a request every 97 ms. But, I do not want to have to wait for the last request to happen or for it to be read.
I just want a request to send every 97 ms and to be sending the output at all times to stdout.
my (current) code is like this: (keys is an array with api keys)
ANSWER
Answered 2021-Jun-12 at 08:09You have already discovered that tokio::spawn is the correct tool for this task, since you essentially want to use some async code in a "fire-and-forget" way, without waiting for it in the main program flow. You just need a little adjustments to your code.
First, for the error you're quoting - it is due to the fact that you have to somehow handle the possible error during the request. You can simply add question marks after each await returning Result, but then you run into the following:
QUESTION
I want to create a actix-web server where I can provide my Search trait as application data in order to easily swap between multiple implementations or use mock implementation for testing. Whatever I try I can't get it to compile or when I get it to compile I get the following error when visiting the route in the web browser:
App data is not configured, to configure use App::data()
Here is what I have so far
...ANSWER
Answered 2021-Jun-11 at 18:37When adding the data to your App, you have to specify that you want it to be downcasted as a trait object. Data does not accept unsized types directly, so you have to first create an Arc (which does accept unsized types) and then convert it to a Data. We will use the app_data method to avoid wrapping the searcher in a double arc.
QUESTION
I am trying to use the binance_async library, tokio, and futures to make concurrent orders to Binance. (See notes at the end of this question.)
The binance_async functions I'm using return a
binance_async::error::Result> type. I am facing the following issue, illustrated in these 2 examples:
- Say I'm trying to do this:
ANSWER
Answered 2021-Jun-11 at 18:22binance_async uses futures 0.1, which is incompatible with the now standardized std::future::Future that tokio uses. You can convert a futures 0.1 future to a standard future by enabling the compat feature:
QUESTION
This is the continuation of `RefCell` cannot be shared between threads safely?, made a new Q for better presentation.
I made a minimal main with a Mutex, but now test_for_closure does not live long enough and is dropped here while still borrowed. What a ride! :)
Rust playground link: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=7bf56545350624e75aafa10524ea59ff
...ANSWER
Answered 2021-Jun-07 at 23:05There are two issues, first of all, Body only implements From<&'static str> but the given &str is bound to the lifetime on the MutexGuard, therefore the Body::from call fails with a lifetime error. You can work around this via foo.clone().
The second issue is about the multiple nested scopes which would require additional clone()s on the Arc> and move on the service_fn closure. The following compiles:
QUESTION
Suppose a loop on main like this:
...ANSWER
Answered 2021-Jun-06 at 14:51You can spawn lightweight tasks out of both futures, which will allow you to await them both without serializing them. It is conceptually similar to the solution you proposed, but doesn't use additional threads (it runs foo and bar on the normal executor threads, interleaving them with other futures as they await), and the channels created are one-shot channels highly optimized for this purpose.
QUESTION
I am new to rust and working on a tool which interacts with the Binance API. The API returns a response like so:
...ANSWER
Answered 2021-Jun-04 at 02:06Since it returns an array of arrays, you need to nest the types. bids: Vec> should work, but since you know each inner array will have two elements, you can make it more efficient with bids: Vec<[u64; 2]> - a dynamically-sized vector of fixed-size arrays, or bids: Vec<(u64, u64)>, a dynamically-sized vector of tuples. You'd also need to update asks similarly.
Your final code could look something like this:
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