yield keyword in Python

In Python, yield is an important keyword, which is closely related to generator (Generator) and lazy evaluation (Lazy Evaluation). yield allows a function to yield values during iteration without having to calculate them all at once. This feature is especially useful when working with large data sets or infinite sequences. 1. yieldKeyword 1.1 Basic concepts […]

[ES6 knowledge] Generator function and yield keyword

Article directory 1 Generator function 1.1 Overview 1.2 Execution mechanism 1.3 yield expression 1.3.1 Overview 1.3.2 Similarities and differences between `yield` expression and `return` statement 1.4 next() method parameters 1 Generator function 1.1 Overview ES6 newly introduces the Generator function, which can suspend the execution flow of the function through the yield keyword, providing the […]

Generator function and yield

Generator function and yield in ES6 The generator function is a function that solves asynchronous programming. The generator function returns an iterable object (that is, a traversable object). Formally, the Generator function declaration method is quite similar to that of an ordinary function, but it has two characteristics. First, there is an asterisk between the […]

python generator yield functions and expressions

1 python generator yield function and expression Python generators include generator functions and generator expressions. NO Generator Description 1 Generator function A function whose main body contains a yield statement and returns a generator object. Each time __next__() is called, a result is returned when the yield statement is executed and execution stops. The following […]

Query active bonds-query corresponding yield-calculate spread

Query active coupons: from apis.factor_handler import FactorHandlerAPI from apis.quant_handler import QuantHandlerAPI from apis.market_handler import MarketHandlerAPI import datetime import pandas as pd import numpy as np import re importsys import os #Hidden function print def initialize_hidden_prints(activated=True): original_stdout = None if activated: original_stdout = sys.stdout sys.stdout = open(os.devnull, ‘w’) return original_stdout def open_hidden_prints(original_stdout): sys.stdout.close() sys.stdout = original_stdout […]

Java implements financial formulas in excel tables: Duration/Xirr/Yield

By chance. The source code of others that I picked up is recorded here. Maybe it can still be used in the future. 1. Duration implementation import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class DurationFunction {<!– –> public static Double getDuration(String settlementStr,String maturityStr,Double coupon,Double yld,Double frequency,Integer basis) {<!– –> Date settlement = null; […]

12 Thread dormancy sleep, thread polite yield, use of Thread.join(), thread expired suspend(), resume() and stop()

Java multithreading common methods, expired methods thread sleep sleep Thread courtesy yield Use of Thread.join() Suspend(), resume() and stop() for thread expiration Thread sleep sleep sleep(long) specifies the number of milliseconds that the current thread blocks There is an exception in sleep InterruptException After the sleep time is up, the thread enters the ready state […]

Thread Introduction 3–Thread Politeness: Yield; Thread Mandatory Execution: join; Observe Thread Status: state; Get and Set Thread Priority: getPriority, setPriority; Daemon Thread: Daemon

Introduction to threads Thread courtesy Thread politeness: thread politeness is to change the thread in the active state to the thread in the ready state, and wait for the scheduling of the CPU again at the same time as other threads in the ready state. politeness may not be successful. Code Demonstration Understanding: Source code […]