arguments

问题 Hi i want to pass image from view to api using request,with url. here is my code: def processImage(request): image=request.FILES['image'] params = {'image': image } url='http://127.0.0.1:8000/idealweight/' outPut_Data=requests.post(url,params=params) //i also tried this img=image and then passed: outPut_Data=requests.post(url,img) but did not worked.and this gives error in imgFinalPro few arguments passed. I am calling this imgFinalPro function And here I want to receive the image: def

问题 I am writing an application that is supposed to open a certain process on the click of a button. However, the user has the ability to add new buttons. I'm using the following code for the action that occurs that starts the process on button click: private void StartProcess(string path) { ProcessStartInfo StartInformation = new ProcessStartInfo(); StartInformation.FileName = path; Process process = Process.Start(StartInformation); process.EnableRaisingEvents = true; } private void ClickFunc

问题 I have been reading quite a bit about inheritance, but I can't seem to grasp why this gives me an error (using Python 2.7.x). class A(object): def __init__(self, value): super(A, self).__init__() print 'First %s' % value class B(object): def __init__(self, value): super(B, self).__init__() print 'Second %s' % value class Log(A, B): def __init__(self, a, b): A.__init__(self, a) B.__init__(self, b) print 'Log' x = Log(1000, 2222) // Error: __init__() takes exactly 2 arguments (1 given) #

问题 What is the difference between: CREATE PROCEDURE [dbo].[MyProcedure] @MyArgument INT NULL and CREATE PROCEDURE [dbo].[MyProcedure] @MyArgument INT = NULL I used the first one, and it worked fine in SQL Server 2016. But SQL Server 2012 did not accept it. Both works on SQL Server 2016, and I am using the second one now without problem. But it would be interesting to know the difference. Thanks! 回答1: They don't do the same thing. The second one defines a default value for the case that the

问题 I have the following Python code: data = ['1', '4.6', 'txt'] funcs = [int, float, str] How to call every function with data in corresponding index as an argument to the function? Now I'm using the code: result = [] for i, func in enumerate(funcs): result.append(func(data[i])) map(funcs, data) don't work with lists of functions ( Is there builtin function to do that simpler? 回答1: You could use zip* to combine many sequences together: zip([a,b,c,...], [x,y,z,...]) == [(a,x), (b,y), (c,z), ...]

问题 I've read that you can pass arguments to a .msi file, but I have no idea how to do it correctly. I've tried the following, where $ArgumentList is an array. $ArgumentList = @("/i .\NSClient v67.msi", "/norestart", "/quiet", "/l*v '$directory'", "token=$token", "host=$_host", "mode=$mode") Start-Process "msiexec" -ArgumentList $ArgumentList -Wait -NoNewWindow This is part of my script, where I'm trying to install NetSkope on my machine by executing a command. In theory, the command should look

问题 I've read that you can pass arguments to a .msi file, but I have no idea how to do it correctly. I've tried the following, where $ArgumentList is an array. $ArgumentList = @("/i .\NSClient v67.msi", "/norestart", "/quiet", "/l*v '$directory'", "token=$token", "host=$_host", "mode=$mode") Start-Process "msiexec" -ArgumentList $ArgumentList -Wait -NoNewWindow This is part of my script, where I'm trying to install NetSkope on my machine by executing a command. In theory, the command should look

问题 This question already has answers here : How to specify multiple return types using type-hints (3 answers) Closed last year . I have a Python function which accepts XML data as an str . For convenience, the function also checks for xml.etree.ElementTree.Element and will automatically convert to str if necessary. import xml.etree.ElementTree as ET def post_xml(data: str): if type(data) is ET.Element: data = ET.tostring(data).decode() # ... Is it possible to specify with type-hints that a

问题 In some Java methods I see that an Interface argument is required. Since an Interface cannot be instantiated, does that mean that an object of every class that implements this interface can be passed as argument? For example in the setOnClickListener method of the ListView class in Android, setOnItemClickListener(AdapterView.OnItemClickListener listener) the OnItemClickListener interface (nested in the AdapterView abstract class) is needed as an argument. What kind of object is required to be

问题 In my xamarin forms application I have a tabbedpage with behind it a viewmodel. This viewmodel behind injects a service with dependency injection. That service is scoped. It should be scoped for the tabbedpageviewmodel. But the tabs should also make use of that scoped service. How can I achieve this? Should I pass the service to the tabbedpages-viewmodels? Singleton is not an option, because I work with notifications, the tabbedpageviewmodel can accur multiple times in the navigationstack,