dst | Decorated Syntax Tree - manipulate Go source
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Decorated Syntax Tree - manipulate Go source with perfect fidelity.
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dst Examples and Code Snippets
def copy_v2(src, dst, overwrite=False):
"""Copies data from `src` to `dst`.
>>> with open("/tmp/x", "w") as f:
... f.write("asdf")
...
4
>>> tf.io.gfile.exists("/tmp/x")
True
>>> tf.io.gfile.copy("/tmp/x"
Community Discussions
Trending Discussions on dst
QUESTION
I use python 3.8 on archlinux. I use shutil.copytree to copy a folder into a usb key. When i check into the usb after copy, the folder is correctly copied, but i see that my usb key that has a ticking led is still writing. If i eject my usb key before the ticking is over and reconnect it, i see that the folders are not entirely copied. Means that my OS (archlinux) thinks that the copy is done, but it's not. Any ideas ?
...ANSWER
Answered 2021-Jun-15 at 13:30It seems like the copy has logically finished, but hasn't been fully written to the physical USB flash drive. That is to say, your OS has cached some of the data from the copy, and will actually write it to the drive at a later time, but definitely before the drive is unmounted.
To check if this is the case, you can check (either within Python or through some other program) if the copy has completed once the code has moved on past shutil.copytree
. If it has, then the issue is almost certainly that the USB flash drive was not safely ejected.
You should be able to solve this by unmounting (i.e. safely ejecting) the USB flash drive before removing it.
QUESTION
I know there are some other questions (with answers) to this topic. But no of these was helpful for me.
I have a postfix server (postfix 3.4.14 on debian 10) with following configuration (only the interesting section):
...ANSWER
Answered 2021-Jun-15 at 08:30Here I'm wondering about the line [in s_client]
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
You're apparently using OpenSSL 1.0.2, where that's a basically useless relic. Back in the days when OpenSSL supported SSLv2 (mostly until 2010, although almost no one used it much after 2000), the ciphersuite values used for SSLv3 and up (including all TLS, but before 2014 OpenSSL didn't implement higher than TLS1.0) were structured differently than those used for SSLv2, so it was important to qualify the ciphersuite by the 'universe' it existed in. It has almost nothing to do with the protocol version actually used, which appears later in the session-param decode:
QUESTION
I looked at others answers like Backup and restore SQLite database to sdcard and Restoring SQLite DB file etc. but i still dont see the restoring of database when i uninstall and reinstall app and restore backup. Here is the code I have currently.
...ANSWER
Answered 2021-Jun-03 at 20:36You issue could well be that the database is using WAL (Write-Ahead logging) as opposed to journal mode.
With WAL changes are written to the WAL file (database file name suffixed with -wal and also another file -shm). If the database hasn't been committed and you only backup/restore the database file. You will lose data.
- When fully committed, the -wal file will be 0 bytes or not exist, in which case it is not needed.
From Android 9 the default was changed from journal mode to WAL.
Assuming that this is your issue you have some options:-
- Use Journal mode (e.g. use the SQLiteDatabase disableWriteAheadLogging method)
- Backup/Restore all 3 files (if they exist)
- Fully Commit the database and then backup (closing the database should fully commit) and delete/rename the -wal file and -shm file before restoring.
Option 3 would be the recommended way as you then gain the advantages of WAL.
Here's an example of fully checkpointing (a little over the top but it works):-
QUESTION
How SSL works is well know as it's quite widely used and described well every where. In short - SSL involves
- Verifying server authenticity by client by verifying the servers X.509 certificate.
- Then arriving at a symmetric key using diffie-hellman key exchange algorithm.
But I am not sure what happens withsecurity.protocol=SASL_SSL
. Clients and Server communication of few technologies like Kafka etc rely on this security protocol as one of the option. Here I am worried about the point 1 above. If i get a wrong broker address (as a trick ) from some one, does SASL_SSL verify the server certificate or not is my question. If it does, then I can be sure that the received broker is not genuine and my application will not publish or subscribe to messages from this server and my data is safe.
Edit 1: Following @steffen-ullrich answer and comments And little more dig, i see below. Looks like the certificate validation is happening when used through chrome and probably its loaded in the cacerts
too. So the java code is able to authenticate the server.. so seems ok..
Edit 2: Right the certificates DST and ISRG are preloaded in the JDK 11 cacerts, so the client is able to authenticate the server as commented by Stephen.
...ANSWER
Answered 2021-Jun-13 at 02:57What you are asking is related to another configuration please read the following description.
ssl.endpoint.identification.algorithm The endpoint identification algorithm used by clients to validate server host name. The default value is https. Clients including client connections created by the broker for inter-broker communication verify that the broker host name matches the host name in the broker’s certificate. Disable server host name verification by setting ssl.endpoint.identification.algorithm to an empty string. Type: string Default: https Importance: medium
QUESTION
In CameraX Analysis, setTargetResolution(new Size(2560, 800), but in Analyzer imageProxy.getImage.getWidth=1280 and getHeight=400, and YUVToByte(imageProxy.getImage).length()=768000。In Camera, parameter.setPreviewSize(2560, 800) then byte[].length in onPreviewFrame is 3072000(equales 768000*(2560/1280)*(800/400))。How can I make CameraX Analyzer imageProxy.getImage.getWidth and getHeight = 2560 and 800, and YUVToByte(ImageProxy.getImage).length()=3072000? In CameraX onPreviewFrame(), res always = null, in Camera onPreviewFrame(), res can get currect value, what's the different between CameraX and Camera? And what should I do in CameraX?
CameraX:
...ANSWER
Answered 2021-Jun-13 at 01:15With regards to the image analysis resolution, the documentation of ImageAnalysis.Builder.setTargetResolution()
states that:
The maximum available resolution that could be selected for an ImageAnalysis is limited to be under 1080p.
So setting a size of 2560x800 won't work as you expect. In return CameraX seems to be selecting the maximum ImageAnalysis
resolution that has the same aspect ratio you requested (2560/800 = 1280/400).
QUESTION
Is it possible to achieve the same Python operation in Javascript using TensorflowJs?
...ANSWER
Answered 2021-Jun-10 at 14:09So far I have settle with having the following, using opencvJs:
QUESTION
I use the following docker run command to bring up the container
...ANSWER
Answered 2021-Jun-08 at 01:49You docker-compose
has syntax error, after write the yaml, you could go to yamllint to verify your syntax.
For your case, driver_opts
& driver
definition is for reused across multiple services, it should be defined under the top-level volumes key like next;
QUESTION
I am working with OpenCV and inside there is the function goodFeaturesToTrack to apply ShiTomasi method to find corners.
We know that Shi-Tomasi is based on finding eigenvalues so there is even a function in OpenCV to calculate the minimal eigenvalue of gradient matrices for corner detection called cornerMinEigenVal
in case you want to do your own implementation:
ANSWER
Answered 2021-Jun-07 at 16:00Short answer: There is no such function in OpenCV that calculate MinEigenVals for sparse points. However, you can implement one from HarrisResponses() with just small modifications.
The HarrisResponses()
function is used to calculate Harris score for sparse points (it's static in OpenCV, so you can't call it directly).
Look through the code of calcMinEigenVal() and calcHarris(), and you will find that the only difference between them is how they use values from the cov
matrix:
QUESTION
I'm trying to configure a canary rollout for a demo, but I'm having trouble getting the traffic splitting to work with linkerd. The funny part is I was able to get this working with istio and i find istio to be much more complicated then linkerd.
I have a basic go-lang service define like this:
...ANSWER
Answered 2021-Jun-03 at 05:06After reading this: https://linkerd.io/2.10/tasks/using-ingress/ I discovered you need to modify your ingress controller with a special annotation:
QUESTION
I'm trying to automate moving files from one windows directory to another, having the origin and destination directories in a config file.
I've gotten it to work if there is only 1 line in the config file containing the paths. The shutil command also works if I hardcode the paths in the script, but that's not the idea. I need to loop through a list of directories and run the code per origin and destination
This is the entry in the .conf file:
...ANSWER
Answered 2021-Jun-02 at 12:22With some changes, I was able to fix your code and get it working on my computer.
- Use
strip()
to remove the Windows style newline at the end of line and extra white space. This assumes that while your directory names might contain spaces, they won't end or start with a space. - Instead of doing
chdir
tosource_path
, I open it in place. This allows me to use relative paths instead of exclusively absolute ones, and there's really no need to change the dir anyway. As a result, the files insource_path
are referred to viaos.path.join(source_path, f)
. - Put a try/except around
listdir
to handle the case where the directory does not exist. - Test that
dest_dir
exists and is a directory, to avoid various problems. - I tested this script and it works on my Windows 10 machine with Python 3.9.5 called from PowerShell. It works with one or multiple lines, and the paths can use
\\
or just\
.
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