sio | Go implementation of the Data At Rest Encryption | Encryption library
kandi X-RAY | sio Summary
kandi X-RAY | sio Summary
It is a common problem to store data securely - especially on untrusted remote storage. One solution to this problem is cryptography. Before data is stored it is encrypted to ensure that the data is confidential. Unfortunately encrypting data is not enough to prevent more sophisticated attacks. Anyone who has access to the stored data can try to manipulate the data - even if the data is encrypted.
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QUESTION
I'm stuck on a problem with writing a parser in Haskell that I hope someone can help out with!
It is a bit more complicated than my usual parser because there are two layers of parsing. First a language definition is parsed into an AST, then that AST is transformed into another parser that parses the actual language.
I have made pretty good progress so far but I'm stuck on implementing recursion in the language definition. As the language definition is transformed from AST into a parser in a recursive function, I can't work out how it can call itself if it doesn't exist yet.
I'm finding it a bit hard to explain my problem, so maybe an example will help.
The language definition might define that a language consists of three keywords in sequence and then optional recursion in brackets.
...ANSWER
Answered 2021-Jun-10 at 18:53I believe you can use laziness here. Pass the final parser as a parameter to transformSyntaxExprToParser
, and when you see a Recurse
, return that parser.
QUESTION
I have been looking for Python curve fitting with constraints. One of the option is to use lmfit module and another option is to use penalization to enforce the constraints. I have following code in which I am trying to enforce a+b=3.6
as the constraint. In other words, y=3.6
when x=1
and x
is always >=1
in my case.
ANSWER
Answered 2021-May-18 at 02:59If I understand your question correctly, you want to model some data with
QUESTION
I would like to improve the socketio.event
decorator to make it print the event fired and its parameters.
I have a Manager
class which has a self.sio: socketio.Server
attribute. I try to define a new decorator as a Manager
method such as it returns a function decorated by self.sio.event
and which also prints its data. I have tried this solution, but it does not work :
ANSWER
Answered 2021-May-16 at 10:34I think something like this should work for you:
QUESTION
So I've got a bluetooth connection from an arduino reading a joystick and sending the axis readout over bluetooth to my raspberry pi (4b running ubuntu 20.10). I've confirmed it's receiving this data too.
Now I try to run this bluetooth communcication in a separate process using the python multiprocessing module. to access the data from the arduino, I give the function a queue from the parent main process to put the data in there. Then in the main function I continuously try to read from this queue and process the data there.
The queue in the parent process always remains empty, however, and as such I can't process the data any further.
How can I get the data from the bluetooth process back to the main process?
...ANSWER
Answered 2021-Apr-30 at 16:19At thelizardking34's suggestion, I relooked at the global stuff I'd been messing with and after correcting it, the code as now given in the question works.
Thanks to thelizardking34!
QUESTION
PROBLEM: charset utf-8 is broken? Even if the code is correct? Please check attached picturespicture, I can't paste it here, so you have to use a link. The first image how it look graphically and for a second I used XVI32 and show you hex difference. Why it happens and how can I prevent it? I think that checking it with XVI32 shows if I am serious.
https://pasteboard.co/JWgM1iz.png https://pasteboard.co/JWlUcIc.png
PROBLEM: charset utf-8 is broken? Even if the code is correct? Please check attached picture, I can't paste it here, so you have to use a link. https://pasteboard.co/JWgM1iz.png
- UTF-8 charset loads in the old file.
- The "dirtiness" of the code and spaces are irrelevant in this case because before it worked, even if I add a code like on the beauty contest, the effects are the same. I left this on purpose, so you can see it worked before. After the file "crash" it is irrelevant what I will do - the effect remains the same - at least partially CSS is not loading. Sometimes a weird characters appear- a proof of another charset in the use.
- I am aware of a fact that if a char set will switch to another than utf-8, the space can become a non-breaking space and break the whole page. It could happen but it is still not a cause. If I remove all spaces and problem already occured- it won't help it.
- In notepad++ utf-8 is visible at the bottom of the screen for both files. In one old file -it works. Results above the code. In the new file - it doesn't. The code is copied from one file to another.
- If in the old file I will cut the content, paste it to excel (I was generating files in excel)and paste back - it stops working.
- If the old file I will copy as a whole in a folder - the code works.
- I was testing it in opera and chrome, firefox. Old file works, file with a pasted code - doesn't.
- I kept the only minimum of the code because was irrelevant. If for example in the working file I will cut everything below a line title and paste back- it still works. If I cut back everything with a charset - it stops to work - forever. No jokes.
- If I copy a working code to excel and paste back to empty html file - it won't work.
- Visual studio code, notepad++ the same results.
I spend on trying to solve this like easily 10-12h. My hands are tied until I will understand what is the cause. I don't even believe what is happening. I am losing my mind. Even Slaanesh can't help me, maybe you can.
...ANSWER
Answered 2021-Apr-07 at 11:20charset
is not a valid attribute of
QUESTION
ANSWER
Answered 2021-Apr-18 at 16:08The thing is, the CSS class name changes every reload, so sometimes is c7
, on reload is c1
and so on.
This example will search for CSS class name that contains "red" color (as your desired text is) and then uses this class name to find your text:
QUESTION
I have an issue using a decorator from a imported package in a class I created. I created two classes and a main()
. An instance of class A
is created in main()
and an instance of class B
is created in class A
. Class B
needs to update attributes of the instance created in main()
. Furthermore, I need to use decorators from the imported package.
I don’t know how to get around the inability to reference the attributes of the the instance created in main()
from the decorated confirm_connect
function in the instance of class B
. The only way I have made it work is to declare the instance created in main()
as global
and remove all the self
references in class B
. However, making it global
causes other issues in my application. (Making the instance of socketio
as global
within class B
is tolerable, but I prefer not having it either.)
The function confirm_connect
receives a message from the server. If I define the function as def conform_connect(self, data)
, I get the error message connect_confirm() missing 1 required positional argument: 'data'/
. If I remove self
from the declaration, then I get the error NameError: name 'self' is not defined
.
Here is my script. How can I make my script do what I need it to do?
...ANSWER
Answered 2021-Mar-22 at 00:43If you understand how decorators work, then you understand that
QUESTION
In a makefile, what is the difference between
...ANSWER
Answered 2021-Mar-14 at 16:43The exec
command is useful for specific cases when writing scripts. One such example is when we want an application to run without access to a shell process after execution. You can read more about those use cases here.
For the situation you gave, there is no practical difference between exec python
and python
, other than not being able to return to your shell after python is finished executing with the exec
command. You're better off just using python
.
QUESTION
I'm trying to send data to server from client but I get bad namespace error.
I searched for the error but didn't find any solution... Can anyone point out what mistake I've done.
server side (app.py)
...ANSWER
Answered 2021-Jan-16 at 07:20I got this working by having the connect
handler invoked in server.
QUESTION
I'm trying to make a basic test of a nodejs server with a python client on Raspberry Pi. This has been much more difficult than I would have imagined to get right. Very simple in the end.
Here's the server:
...ANSWER
Answered 2021-Feb-23 at 18:30Ok, working now with a couple of minor edits. I didn't have the message, 'msg', correct in the send_msg function so I fixed that.
I also installed: pip install socketio-client but I don't know if that was necessary. Anyway, now it sends a message from python to nodejs and nodejs sends a message back to python.
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