interfacer | Multi-level command line Python framework | Command Line Interface library
kandi X-RAY | interfacer Summary
kandi X-RAY | interfacer Summary
Interfacer is a multi-level command line support library, heavily inspired by Cobbler’s command line structure, only a lot cleaner. To use it, just write an example script like the one in example_bin and some modules like the ones in example_modules. Interfacer is also a thin abstraction around optparse at the lowest level, which simplifies how easy it is to write new command line tools. Explore the source in lib to understand how it works.
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Top functions reviewed by kandi - BETA
- List available modules .
- List subcommands .
- Parse options .
- Initialize the module .
- Load CLI modules .
- Find a module path
- Register the module .
- Run the action .
- List of subcommands .
interfacer Key Features
interfacer Examples and Code Snippets
Community Discussions
Trending Discussions on interfacer
QUESTION
Earlier I had a good understanding of variance in interfaces. Now I'm a little confused with the variance in delegates in variant interfaces. Methods, properties, indexers, and events can be defined in interfaces. The signature of methods, properties and indexers in the variant interface is direct. And the events are reversed.
I don’t understand why a value-returning method works in a covariant interface, but a similar signature for a delegate does not work. A contravariant delegate that should not return anything works. The same goes for the contravariant interface.
Code below:
...ANSWER
Answered 2021-May-31 at 07:19The rule is that the types of events must be input-safe. This is the same as method parameters. This makes sense, because when you declare events in interface decelerations, you're essentially declaring a pair of add and remove accessors, that look something like this:
QUESTION
I am trying to add a third-party .NET Framework 3.5 DLL with a WinForms control to my unmanaged Visual C++ MFC application. Therefore, I have built a C# com-interop-wrapper DLL, which is registered as an ActiveX control.
It is working well, but exiting the MFC container application leads to an access exception every time.
Exception thrown at 0x7B7E13C7 (mscorwks.dll) in MFCApplication2.exe: 0xC0000005: Access violation reading location 0xDDDDDDE5.
The error occurs only, if I add an interface for events, i.e. if I add the attribute ComSourceInterface. The underneath example would work well without the line [ComSourceInterfaces(typeof(IUserControlEvents))].
Here is the minimal example:
...ANSWER
Answered 2021-Apr-20 at 15:22What happens is .NET holds references to some native COM pointers (provided by MFC) because there are bidirectional connections established (events).
If MFC objects referenced by .NET are deleted first, when .NET wants to release its references (when garbage collection happens which is not deterministic), it's too late and it calls IUnknown->Release() on rogue pointers.
The solution is to call a .NET provided native method: CoEEShutDownCOM but how to call it depends on the .NET Framework version. Here is a helper method that handles both cases:
QUESTION
I think is something that I miss theoretically from the passing by reference topic but I can't find a way to read the ID without using the support networkInterfaceReference
ANSWER
Answered 2021-Apr-25 at 17:00If you want the 2nd way to work:
QUESTION
I am trying to write an extremely simple function that just accepts a pointer to os.File and returns its number of lines.
Here is my function
...ANSWER
Answered 2021-Mar-14 at 20:18The suggestion said to use io.Reader, not *io.Reader. Interfaces typically contain pointers already, so there's rarely a need to use a pointer to an interface.
QUESTION
I have the following abstract class
...ANSWER
Answered 2021-Feb-25 at 12:05Store a smart pointer within Container so that it controls the lifetime of the referred object:
QUESTION
In the following, the method Obtain() works, but the GetAs() method would be neater for callers.
However, I can't figure out how to pass an interface as a generic parameter and obtain its GUID.
Declaration:
...ANSWER
Answered 2021-Jan-12 at 09:38You have to use typeinfo via GetTypeData(TypeInfo(I)).GUID.
Keep in mind though this might return an empty guid if you did not declare any for the given interface you are using while the non generic approach simply would not compile.
QUESTION
Java class : This is the method where i created the dropdownchoice object for select menu and add it to the form. In this method adding the projects list to the billableProjectsList
...ANSWER
Answered 2020-Nov-19 at 22:44What is
QUESTION
I am having difficulty accomplishing this. My child component has the following:
ChildComonponent
...ANSWER
Answered 2020-Sep-30 at 23:23Update this line:
QUESTION
I'm working on Wicket 8.* migration when I struggle on onRequestHandlerResolved() under IRequestCycleListener method conversion.
As per my structure of logic in my code wicket 7.15.0
...ANSWER
Answered 2020-Sep-19 at 12:25It should be something like this:
QUESTION
In my code I register to receive signals when USB devices are inserted.
...ANSWER
Answered 2020-Sep-17 at 09:58What D-Bus bindings are you using?
I find the pydbus bindings to be far easier to work with in Python. For example:
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Install interfacer
You can use interfacer like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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