Argon2 | Argon2 Bindings for .NET | Binary Executable Format library
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Argon2 Bindings for .NET 5
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QUESTION
I am trying to build an app from a python file (Mac OS) using the py2app extension. I have a folder with the python file and the "setup.py" file.
- I first tested the app by running
python setup.py py2app -A
in the terminal and the dist and build folder are successfully created and the app works when launched. - Now when I try to build it non-locally by running the command
python setup.py py2app
in the terminal, there are various "WARNING: ImportERROR" messages while building and finally aerror: [Errno 2] No such file or directory: '/opt/anaconda3/lib/python3.8/site-packages/rtree/lib'
error.
How can I fix this? I've tried to delete anaconda fully as I don't use it but it seems to still want to run through it. Additionally, I have tried to run the build command using a virtual environment but I end up having even more import errors.
*I Left out a lot of the "skipping" and "warning" lines using "..." for space
ANSWER
Answered 2022-Mar-13 at 16:13The error error: [Errno 2] No such file or directory: '/opt/anaconda3/lib/python3.8/site-packages/rtree/lib'
was caused by py2app trying to build the program bundle using a non-existent interpreter. This means that even if you try to uninstall a manager like Anaconda, it still has option logs somewhere on your mac.
The fix:
- Open the terminal and type the command
type -a python
.
- You will see similar lines
QUESTION
I'm learning databases, trying to create a user and his two-factor authentication codes. Where one User
can have multiple TwoFa
And so, there are 2 tables, User
and TwoFa
user.ts
...ANSWER
Answered 2022-Mar-11 at 16:38You're trying to create a user associated with a new TwoFa instance that has the same primary key value.
If you indicate include
in create
that means you want to create a user along with a TwoFa
record and that's not what you want to get.
If you just want to create a TwoFa
record and associate it with an existing user then just indicate UserId
without include
option:
QUESTION
Trying to (re)install Jupyter's nbextension via the following steps in terminal
- pip install jupyter_contrib_nbextensions
- jupyter contrib nbextension install --user
- install --user jupyter nbextension enable varInspector/main
Step 1 = runs and i am able to launch notebooks via "jupyter notebook" in terminal just fine.
Step 2 = fails with
...ANSWER
Answered 2022-Mar-01 at 17:47So in case anyone comes across similar for any reason with me encountering this probably due getting a new machine and IT doing their voodoo magic transferring my old stuff to this new machine.
Anyhow, there were a bunch of things I still needed to install after I got my new machine and i am not able to exactly pin point what caused issues from my question but in the end I was able to resolve. Follow me there below ...
Checking out my python.exe files I found 2 paths. First one added as environment variable
- C:\Users-----\AppData\Local\Programs\Python\Python310
- C:\Users----\AppData\Roaming\Python\Python310\
Second one not added. Adding roaming version to path variables did not solve the issue and gave additional errors instead:
Fatal error in launcher: Unable to create process using '"C:\Program Files\Python310\python.exe"
So
I uninstalled python (done that before didnt help doing just that alone)
Deleted all environment variables pointing to python (here is what environment variables are just in case - https://www.computerhope.com/issues/ch000549.htm)
Uninstalled python extension from VS code (https://marketplace.visualstudio.com/items?itemName=ms-python.python)
Deleted Python folders mentioned in the two paths above
Then reinstalled python (clicked add to path during installation)
Reinstalled VS code python extension
Everything works now.
Best of luck
QUESTION
Background
I am trying to plot an image noise using pytorch, however, when I reach to that point, the kernel dies. I am attempting the same code at Google Colab where I do get results
Result at Google Colab
Result at Jupyter
I do not think that it has something to do with the code itself, but I am posting the function to plot the grid:
...ANSWER
Answered 2022-Feb-28 at 22:25After a few days I was able to find the solution
Firstly, my code needed to be fixed to correctly call the params needed with the proper name
QUESTION
I'm new to NodeJs, and I'm following the full-stack tutorial made by Ben Awad https://www.youtube.com/watch?v=I6ypD7qv3Z8&t=7186s.
After setting up my server and everything works fine. I added express-session for session storage and linked it with Redis using Redis-connect and Redis client.
This is my index.ts:
...ANSWER
Answered 2022-Feb-21 at 18:33The problem is redis. With newer versions it saves the keys differently.
If you want to use the same code as Ben, you have to use legacyMode:
QUESTION
I am running to an error that says "Invalid ELF header" for a package called "argon2". When uploading my code to AWS Lambda through the serverless framework. The code runs perfectly when running locally.
Development on MacOS Big Sur version 11.4
Image of the error I am getting
I've researched a little bit on the error and people are saying to use Docker to compile the packages and then send to Lambda. I haven't worked with Docker much and wanted to explore other options before attempting the docker solution.
Any guidance or help would be much appreciated! I've been stuck on this bug for over a day or two.
...ANSWER
Answered 2021-Sep-24 at 19:59What is going on?
The package you are using (argon2
) contains bindings to a C implementation of the argon2 algorithm. In other words, the package itself wraps a library written in C, and makes it accessible inside your node.js environment.
That C package is also shipped with your package, and compiled (or downloaded) when you run npm install argon2
. That means that after installing argon2, there is a binary shared library on your file system, that is interfacing with your node environment. Because you are installing on MacOS, the binary will be compiled (or downloaded) for Mac. This means you end up with a MACH-O file (which is the format executables for macOS come in) instead of an ELF file (which is format Linux uses for executables).
Now your Lambda (which runs Linux under the hood) effectively complains, that the executable you've built on your Mac is not a Linux executable.
How do you fix this?
In simple terms, you need a way to npm install
that will build or download the argon2 version for Linux. There are two different ways to achieve this. Pick one:
npm install
on Linux
Pretty much as the title says, download and build your dependencies under Linux. You can use a Virtual Machine, or a Docker container to do that. Another option would be to use the AWS build SaaS product (AWS CodeBuild) to do this.
npm install --target_arch=x64 --target_platform=linux --target_libc=glibc
on Mac
Thankfully argon2 comes with support for node-pre-gyp. They effectively provide you with prebuild binaries, which means that you can just pull the linux binaries end do not have to compile them yourself. To do that, thow away your node_modules folder and run npm install --target_arch=x64 --target_platform=linux
. This will download the Linux files, instead of the macOs files. You can then push everything into your lambda. Please note that this means your application will not run locally anymore, since your mac cannot run the Linux executable (you would have to npm install
again, leaving out the two parameters to get back to the MacOS version).
Please note that there might be packages apart from argon2 that do not support MacOS, in which case you would have to take the first option.
QUESTION
I am trying to deploy my first web app on Heroku however I am getting a PyObjc error while pushing the code. I am doing this on a Mac Machine. This predictive application is developed using Flask. I do not know why this error is occurring as I do not have the PyObjc in my requirements.txt
...ANSWER
Answered 2022-Feb-04 at 21:42applaunchservices
appears to be Apple-only:
Simple package for registering an app with apple Launch Services to handle UTI and URL. See Apple documentations for details.
I suspect you don't need that, either. Did you create your requirements.txt
from a pip freeze
? There's likely a bunch of stuff in there you don't need.
I suggest you review that file and remove anything you aren't directly depending on. pip
will find transitive dependencies (dependencies your dependencies depend on) and install them automatically.
Prune that file, commit, and redeploy.
QUESTION
I have the following Angular and Node JS as follows
Interceptor
...ANSWER
Answered 2022-Feb-04 at 15:41The problem is most likely happening because your trying to add the Authorization header before the user is logged-in.
In that situation authToken
is undefined
and you are assigning it to the header anyways.
You could solve it just adding a guard in your intercept method to first check if you have an authToken before attaching it to the request.
QUESTION
I am trying to use a GD function: imagettfbbox()
, but it is undefined. I have compiled my own build of PHP with argon2 support since I am on Ubuntu 21.10.
I am configuring as such:
...ANSWER
Answered 2022-Jan-26 at 00:03--enable-gd-native-ttf
is deprecated as per the image documentation:
To enable support for native TrueType string function add --enable-gd-native-ttf. (This option has no effect and has been removed as of PHP 7.2.0.)
Also --with-gd
was replaced with --enable-gd
.
QUESTION
Argon2 v1.3 is the algorithm used by python module argon2-cffi
.
In the documentation they state the following:
"argon2-cffi implements Argon2 version 1.3, as described in in: Argon2: the memory-hard function for password hashing and other applications."
Yet this document does not specify the actual use of any "flavour" (i/d/id), it just explains the differences.
What "flavour" is used by argon2-cffi
by default? Is there a way to specify the "flavour" you want to use?
ANSWER
Answered 2022-Jan-19 at 14:25Judging from the return value of the hash
function in class PasswordHasher
from argon2-cffi
, it appears it can be concluded that the hybrid "flavour" is used by default.
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