760 questions
0
votes
1
answer
59
views
Passing multiple callable to odeint
I want to write a python script for the following mechanical system :
Where
Which can be rewritten as below :
For example, we define the following Python function to solve this kind of ODE problem.
...
- 119
0
votes
1
answer
118
views
Does python 3.12 allows to append items from the list to tuple, I am trying this but getting error TYPEERROR: 'tuple' object is not callable
Please find the below code, once I execute this code I am getting 'tuple' object is not callable error please give the solution, thanks in advance.
`mytuple = ("apple", "banana", &...
- 1
0
votes
2
answers
88
views
How can a Callable return a value from a predefined void callback?
I am using a data-related API interface which has a key void callback function that is automatically invoked to mark the end of some IO operations. I want to make the class Callable<String> and ...
- 318
-1
votes
1
answer
103
views
Make a `Callable` of my `Runnable` in Java
I have some tasks defined as Runnable objects. I want to invoke those tasks by using the invokeAll or invokeAny methods on ExecutorService.
The problem is that those methods take a collection of ...
- 336k
0
votes
0
answers
126
views
CompletableFuture supplyAsync, thenApplyAsync, thenAcceptAsync working incorrect
I made Async CompletableFuture so that I would first make a payment and then sleep for 10 minutes. And this was repeated endlessly. But sleep once doesn't work anymore
public class PaymentWorker ...
-1
votes
1
answer
76
views
Spring Boot Asynchronous Controller via Callable not working
I want to make an endpoint that is asynchronous with Spring Boot.
I want to avoid Futures and thus @Async because it forces the use of futures.
I read and applied the code from this article : https://...
- 39
-1
votes
2
answers
108
views
How to pass a callable object as runnable object? Can we type cast Callable to Runnable?
How is the below structure possibly working?
Please explain.
Thanks in advance.
public abstract class AbstractCallableClass {
protected abstract V getCallable();
public void passRunnable() {
...
- 1
0
votes
0
answers
230
views
Haversine, module not callable
I want to use a function from haversine.
I installed the Haversine package (terminal: pip install haversine) but I can't run it.
import gurobipy as gp
from gurobipy import GRB
import random
import ...
0
votes
0
answers
13
views
'int' is not callable on my Object with a custom Function
I'm learning Objects & Classes and am doing some practice. I've essentially done the exact same thing before but now with different names for my Classes and Objects. Here's my code (the error ...
- 1
-2
votes
1
answer
140
views
Best way to call common methods from a Callable class?
I use java classes of type Callable (up to 200 in parallel), which call a method of a tool class (centralizing common methods), and I notice that if this method is not 'synchronized', I get errors.
I'...
- 47
0
votes
3
answers
130
views
C++17: pass multiple callable objects together with their parameters
I would like to write a function (C++17 if that matters) that accepts multiple callable objects together with their arguments and executes them in a loop. I would also like to avoid any intermediate ...
- 1,137
0
votes
1
answer
131
views
How to apply a (potentially) different callable to each row in a pandas DataFrame
I have a number of DataFrames, each with the same number of rows. input_df contains input data, param_df contains the parameters used for calculations, and output_df contains output data. One of the ...
- 3
2
votes
2
answers
144
views
How to access $this in the context of a callable outside of class scope?
class foo {
function bar(callable $callable) {
$callable();
}
function printStr() {
echo "hi";
}
}
$foo = new foo();
$foo->bar(function () {
$this-&...
- 61
1
vote
1
answer
2k
views
OpenAI is not callable
When I try to run the following code:
import os
from langchain.llms import OpenAI
from apikey import apikey
import streamlit as st
os.environ["OPENAI_API_KEY"] = apikey
st.title("...
- 31
8
votes
1
answer
360
views
How do you create a callable variable to call a class method with arguments?
I'm trying to create a callable variable for a class method.
class Person {
method walk(Str $direction) {
say "Walking $direction";
}
}
I can create a callable variable for ...
- 1,815
-1
votes
1
answer
147
views
Transform a non callable function into a callable function
To explain: I use optuna on 5 classifier who are store in a dictionary.
To select one model, I use this:
models={"CatBoostClassifier":CatBoostClassifier,"DecisionTreeClassifier":...
- 1
1
vote
0
answers
56
views
Can we pass a basic operator "<" as a callable argument? [duplicate]
My low-level routine needs a argument, to specify it should compare data with LessThan(<) or GreatThan(>) operator.
Like this:
using CompOp_f = std::function<bool( double, double )>;
...
- 2,059
5
votes
2
answers
512
views
Differences between Protocol.__call__ vs Callable?
I have a function
def run_thing(cb: Callback) -> Result:
w: Widget = make_widget()
res: Result = cb(w)
return res
I can imagine two ways to define the Callback type.
# Option 1: Callable
# ...
- 4,645
0
votes
0
answers
84
views
Java Callable Attempts to Complete Prematurely
I have a method that is called with multi threading and runs to around 99% completion. At this point it runs the next method which needs the first method to of finished running before attempting as it ...
-1
votes
1
answer
351
views
Need help for CompletableFuture or Callable Future
I am facing issue for finding out which will be the best way for my below scenario.
I wanted to call 1 API by using multiple threads at a time and wanted to merge their response to make a list.
First ...
- 457
0
votes
0
answers
152
views
"Callable[list, Dict]: has too many arguments in its declaration; expected 2 but 3 argument(s) declared" when using Typeguard runtime type checker
Context
The (typed) get_next_actions function below returns a (typed) function, called actions_0 (or None). The actions_0 function takes in 3 arguments, and returns a Dict.
from typing import ...
- 2,738
1
vote
1
answer
363
views
Vaadin abnormal memory consumption (memoryLeak?)
for a project I'm working on (Spring Boot 2.7.9 + Vaadin 14.9.7) I'm experiencing a strange heap memory usage.
Attached to this post you can find the first objects by top memory usage in my ...
0
votes
1
answer
29
views
I have created a module named get_squares. I have import the module successfully but when I try to run it I get the error "Module object not Callable"
The file get_squares.py includes the following function:
def get_squares(numbers):
squares = [number**2 for number in numbers]
print(squares)
I can import the module get_squares but when trying to ...
0
votes
0
answers
261
views
How to declare callable variable in python without typing module?
Since version 3.9 python supports many native builtin types.
How to declare class variable that can be called in future according to PyLint rules without 'import types'?
In this example PyLint hints a ...
- 47
0
votes
1
answer
72
views
Creating objects and overriding their method constructors from java to kotlin
PaintBuilder.newBuilder()
.addString("Method: ", new Callable<String>() {
@Override
public String call() throws Exception {
return userMethod;
}
...
0
votes
1
answer
150
views
Python: Object not callable - runs in Notebook but not in PyCharm
EDIT: I could solve it (hopefully it does what I want). But I don't understand why it works now. I put my workaround at the bottom. Would be great, if somebody could enlighten me, why it works (or why ...
- 368
0
votes
0
answers
427
views
Not callable pylint error but no problems at runtime
I'm trying to debug a pylint error in an existing codebase. Here's a minimal reproducible example of the issue I'm seeing:
from cytoolz import curry
@curry
def get_generator(val):
if val == 0:
...
0
votes
1
answer
312
views
how to type a custom callable type in Python
I have a class called Foo:
class Foo:
def __init__(self, callable):
self.my_attr = "hi"
self.callable = callable
def __call__(self, *args, **kwargs):
# call ...
0
votes
2
answers
76
views
How to write isEven() function as callable function?
I am learning PHP using reviewing some complete PHP projects. (I know that this is a bad way, but my goal is not to be a PHP programmer!) Anyway, I faced with the following function that is weird a ...
- 99
1
vote
3
answers
2k
views
python typing: callback protocol and keyword arguments
For example, mypy accepts this:
class P(Protocol):
def __call__(self, a: int)->int: ...
def call(a: int, f: P)->int:
return f(a)
def add_one(a: int)->int:
return a+1
call(1,...
- 4,361
2
votes
1
answer
404
views
How to return value from Callable with CountDownLatch?
I want to use CountDownLatch with Callabe interface. I have Person class implements Callable interface which has CountDownLatch and Integer, Person#call() method returns integer value and within ...
- 33
2
votes
1
answer
159
views
How to interface this DFS code with a Boost Graph DFS?
Background
I have defined formatting operations on trees that work pretty well when they are used a pre/in/post order operators with the following structure and DFS definition (it works also on k-ary ...
- 1,046
3
votes
1
answer
133
views
Delphi: Using generics to accept any "callable" (e.g. procedure, procedure of object, lambda)
In C++ duck typing there is the concept of a callable, e.g. a symbol that can be called like a function. I'd like to emulate this with Delphi generics.
I have a problem where I need a procedure that ...
- 431
1
vote
0
answers
239
views
Why does this error occur when I remove these unused variables? Matplotlib animation: self._frames[0].save( > IndexError: list index out of range
I am animating a 360 rotation of a figure to get a full view of the 3D graph, saving it as a GIF. The problem lies within my function that updates the viewing angle of the figure, which is an input to ...
- 11
0
votes
0
answers
44
views
Python: Passing a function with arguments as argument of another function
In the code below, inside WKB, I'm trying to pass the function "integrand" as an argument of the function int_gauss (like this: int_gauss(integrand(E,x0,m1,x),xp,wp)) and it returns me an ...
2
votes
4
answers
767
views
chaining callables in C++
I come from the python world where I could define a chain of operations and call them in a for loop:
class AddOne:
def __call__(self, x, **common_kwargs):
return x+1
class Stringify:
...
- 1,587
1
vote
1
answer
845
views
Does callable also gets executed in a thread?
When we pass a runnabble to an executorService like
Future future = executorService.submit(runnable);
// As here executorService maps the object into instance of
new FutureTask(runnable);
and after ...
- 95
1
vote
1
answer
120
views
Facing issue while using invokeAll to fetch Future object in ExecutorService
Facing below error while fetching Future object by using invokeAll Method. Iam trying to implement ExecutorService to call parallelly.
ERROR>>>>>>>>>>>>>>>&...
- 157
0
votes
1
answer
179
views
How to make a struct that uses Callable (callAsFunction()) works with protocol?
I'm trying to make the callAsFunction() works when working directly with protocol or dependency injection, but it seems like the protocol instance is not aware of the Callable feature. I tried adding ...
- 3,013
4
votes
4
answers
40k
views
How to fix TypeError: 'str' object is not callable?
pic
Try to simplfy the my question here, so used a,b, & c instead.
Even though I copied the tutorial's answer and run it through Colaboratoy, it still show TypeError:'str' object is not callable.
...
- 51
0
votes
1
answer
220
views
Should I use Thread and .join or Callable along with Future and .get?
I am writing a simple thread that simply run a process and reads the InputStream.
While reading the input, if it finds a certain string it sets a boolean to true.
Then when I need to check that ...
- 930
0
votes
1
answer
127
views
How to wait until for few callable tasks complete and then execute
I want to execute some processors in two threads.. few of them are independent and could run anytime but few of them have dependency.. whenver order of execution reaches to that processor i want to ...
- 105
0
votes
0
answers
173
views
TypeError: 'str' object is not callable
This is my code:
import scapy.all
from scapy.all import *
def create_ip_packet(my_req):
ip_packet = IP(dst=my_req)
return ip_packet
my_req is a simple string as "www.google.com"
...
- 33
1
vote
1
answer
95
views
Dynamically call staticmethod in Python
I have a python object that has various attrs, one of them is check=None.
class MenuItem:
check: bool = True
During the __init__() process, it parses it's own attrs and looks if they are callable....
- 1,073
1
vote
1
answer
46
views
How to multiply value's occurence time by the key to get the new value?
The goal:
I want to coune the letters in a sentence, and pprint it as a dictionary, where the value is the occurence of the letters in the sentence, not just its time.
import pprint
from collections ...
0
votes
1
answer
3k
views
TypeError: 'Series' object is not callable in Python?
I am performing model selection in Python. Unfortunately, I got error "TypeError: 'Series' object is not callable". I don't understand what this means and how I could solve this issue. Any ...
- 231
1
vote
0
answers
36
views
Mockito - verify a method with Callable<> as parameter [duplicate]
I have a following class:
public class Task {
public <V> V run(Callable<V> callable) {
//...
callable.call()
}
}
And I have a class that uses the above:
public ...
- 103
0
votes
1
answer
209
views
I get this error called 'Button' is not callable:
This is the code:
class ticket_launcher(discord.ui.View):
def __init__(self) -> None:
super().__init__(timeout=None)
@discord.ui.Button(label='Create a ticket', style = ...
0
votes
0
answers
54
views
Assert MagicMock inside of callable parameter
In order to prevent calls to external resources. For example via requests.get while running unit tests I want to have a function that looks like this:
def call_external_resource(call: typing.Callable[[...
- 105
-1
votes
1
answer
277
views
When is start method invoked by ExecutorService in Java?
I'm learning about ExecutorService in a simple Spring Boot project. And I know that ExecutorService uses submit method to submit tasks and it will uses different threads for every task. And I don't ...
- 1,118