在写一个多线程类的时候调用报错
RuntimeError: thread.__init__() not called
代码如下:
class NotifyTread(threading.Thread):
def __init__(self, params):
threading.Thread.__init__(self) #here。。。。。。
self.params = params
def run(self):
print "start notify............"
time.sleep(10)
print notify_tran(self.params)
print "end notify.............."
在init中要先初始化Thread,然后在给参数赋值,就能解决了。
也就是不能缺少
threading.Thread.__init__(self)
这是一个使用的注意地方。

Pythonusesahybridmodelofcompilationandinterpretation:1)ThePythoninterpretercompilessourcecodeintoplatform-independentbytecode.2)ThePythonVirtualMachine(PVM)thenexecutesthisbytecode,balancingeaseofusewithperformance.

Pythonisbothinterpretedandcompiled.1)It'scompiledtobytecodeforportabilityacrossplatforms.2)Thebytecodeistheninterpreted,allowingfordynamictypingandrapiddevelopment,thoughitmaybeslowerthanfullycompiledlanguages.

Forloopsareidealwhenyouknowthenumberofiterationsinadvance,whilewhileloopsarebetterforsituationswhereyouneedtoloopuntilaconditionismet.Forloopsaremoreefficientandreadable,suitableforiteratingoversequences,whereaswhileloopsoffermorecontrolandareusefulf

Forloopsareusedwhenthenumberofiterationsisknowninadvance,whilewhileloopsareusedwhentheiterationsdependonacondition.1)Forloopsareidealforiteratingoversequenceslikelistsorarrays.2)Whileloopsaresuitableforscenarioswheretheloopcontinuesuntilaspecificcond

Pythonisnotpurelyinterpreted;itusesahybridapproachofbytecodecompilationandruntimeinterpretation.1)Pythoncompilessourcecodeintobytecode,whichisthenexecutedbythePythonVirtualMachine(PVM).2)Thisprocessallowsforrapiddevelopmentbutcanimpactperformance,req

ToconcatenatelistsinPythonwiththesameelements,use:1)the operatortokeepduplicates,2)asettoremoveduplicates,or3)listcomprehensionforcontroloverduplicates,eachmethodhasdifferentperformanceandorderimplications.

Pythonisaninterpretedlanguage,offeringeaseofuseandflexibilitybutfacingperformancelimitationsincriticalapplications.1)InterpretedlanguageslikePythonexecuteline-by-line,allowingimmediatefeedbackandrapidprototyping.2)CompiledlanguageslikeC/C transformt

Useforloopswhenthenumberofiterationsisknowninadvance,andwhileloopswheniterationsdependonacondition.1)Forloopsareidealforsequenceslikelistsorranges.2)Whileloopssuitscenarioswheretheloopcontinuesuntilaspecificconditionismet,usefulforuserinputsoralgorit


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

SublimeText3 English version
Recommended: Win version, supports code prompts!

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Dreamweaver Mac version
Visual web development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
