Python – get different values ​​from multiple files to write to a single file

I have 5 * .dat files here:

Each of them has several parameters. However, we only focus on two lines:



For every file xx and yy are different values. For example xx is 0.1, 0.3, 0.4, ... and yy is -15.95.. or -13.45... and so on.

We want to extract xx and yy from different files and collect them in a text file. The mentioned text file in a desired situation contains two columns as:

0.3    -14.335415618223263
0.4    -17.957315618223263
0.7    -12.554415618223263
1.0    -10.997315618223263

It is difficult for us because we cannot extract values ​​if they are between different parameters.
How can we write code in Python to achieve such a goal?

magento2 – Product attributes cannot be updated after a bulk import in M2.3.4 (single or bulk product attributes)

I uploaded some products using the import option on my M2.3.4 site hosted on the web server. If I need to change / update some attributes now, I can't do that because I cannot save my changes. I have gone through various posts but cannot find a solution.
My cron are doing well. I have a ps aux | grep (c) made onsumer & the results are;

> gadgetwi  614593  0.1  0.0 517400 94428 ?        S    13:51   0:01
> /opt/alt/php72/usr/bin/php /home/gadgetwi/public_html/bin/magento
> queue:consumers:start product_action_attribute.update --single-thread
> --max-messages=10000 gadgetwi  614596  0.1  0.0 517400 94424 ?        S    13:51   0:01 /opt/alt/php72/usr/bin/php
> /home/gadgetwi/public_html/bin/magento queue:consumers:start
> --single-thread
> --max-messages=10000 gadgetwi  614598  0.1  0.0 517396 93472 ?        S    13:51   0:01 /opt/alt/php72/usr/bin/php
> /home/gadgetwi/public_html/bin/magento queue:consumers:start
> exportProcessor --single-thread --max-messages=10000 gadgetwi  614600 
> 0.1  0.0 517400 93604 ?        S    13:51   0:01 /opt/alt/php72/usr/bin/php /home/gadgetwi/public_html/bin/magento
> queue:consumers:start codegeneratorProcessor --single-thread
> --max-messages=10000 gadgetwi  655587 17.5  0.0 501876 78844 ?        R    14:07   0:00 /opt/alt/php72/usr/bin/php
> /home/gadgetwi/public_html/bin/magento cron:run --group=consumers
> --bootstrap=standaloneProcessStarted=1 (gadgetwi@webhosting2042 public_html)$ php bin/magento queue:consumers:start exportProcessor

One observation: If I run in the CLI (PHP Bin / Magento Queue: Consumer: Start ExportProcessor), I get no results. Basically nothing happens.
Most of the solutions that people used to offer are about cron, and in my case, I don't know how to fix it. The basic ones like max-message = 10000 already exist.

Any insight into my problem would be greatly appreciated.

Thanks a lot

mysql5.6 – The MySQL server has disappeared: Two APIs, a single database, one API triggers the error, the other does not

I have two bottle-quiet APIs. Both work well.
API1 is only for reading the database, API2 deals with update / insert. Both access the same database.

API1 doesn't work every morning and I have to restart it every time (once in the morning). Error is – MySQL server is gone.
API2 always works and does not give an error.

I used to think wait_timeout (8 hours by default) could be the reason why API1 throws this error. But why does API2 work then?
(I am using a class for database operations and I have a connection string in the init method. Also, I am not closing any of the database connections. I will edit them very soon to correct them, and only provide the information here to get the exact information for this error)

Question – Why does only API1 report this error while API2 never?

PS – I asked this about the stackoverflow, but it was recommended to post it here as I never found an answer here that was republished

postgresql – PSQL: Multiple lines against single lines with JSON

What is the best way to do this?

  • On the TV show page, I have to get all the progress from all episodes in this TV show
  • I have to get continue_watching on the homepage
  • In Episode, I have to progress the episode.
  • Some TV shows have more than 100 episodes


10      | 5       | 12           | ---

10      | 10         | 15
10      | 11         | 20
10      | 12         | 95


10      | 5       | {"10":15, "11":20, "12": 95} | 12           | ---

In posgresql I can get the individual progress with:

SELECT progress -> & # 39; 10 & # 39; as progress …

I think the best method is the first one, but it will produce many lines and this could slow the DB down?

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The United States gives its people a single check. How is it that countries like Australia give people more every two weeks?

some complications with this guess:

– They also spend $ 600 more per week in unemployment benefits for four months.

– You are working on a second stimulus package with more checks, although Congress has not yet passed it

– 1500 Australian dollars = 923 US dollars

Amazon Web Services – Multiple Rails apps with Unicorn + Nginx could not run on a single AWS EC2 instance

I know this issue has been discussed several times, but I was out of luck and was unable to fix the problem.

I'm going Run multiple Rails apps on AWS EC2 instance With unicorn and Nginx.

I could run a Rails app

So the project continues and

Projects are in / home / ubuntu / work / app1 and / home / ubuntu / work / app2

/ etc / nginx / sites-available / default

upstream app1 {
 server unix:/home/ubuntu/work/app1/shared/sockets/unicorn.sock fail_timeout=0;
upstream app2 {
 server unix:/home/ubuntu/work/app2/shared/sockets/unicorn.sock fail_timeout=0;
server {
 listen 80;
 server_name localhost;
 root /home/ubuntu/work;
 access_log /home/ubuntu/work/log/nginx.access.log;
 error_log /home/ubuntu/work/log/nginx.error.log;

location /app1/ {
 root /home/ubuntu/work/app1/public;
 rewrite ^/app1/(.*)$ /$1 break;
 try_files /app1/$uri/index.html /app1/$uri.html /app1/$uri u/app1;
location /app2/ {
 root /home/ubuntu/work/app2/public;
 rewrite ^/app2/(.*)$ /$1 break;
 try_files /app2/$uri/index.html /app2/$uri.html /app2/$uri u/app2;

location u/app1 {
 proxy_pass http://app1;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 proxy_set_header Host $http_host;
 proxy_redirect off;
location u/app2 {
 proxy_pass http://app2;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 proxy_set_header Host $http_host;
 proxy_redirect off;

 error_page 500 502 503 504 /500.html;
 client_max_body_size 4G;
 keepalive_timeout 10;

Can someone help me?

Wallet – Use case for multiple entries in a single transaction

Is there a way to determine if a pair or more Bitcoin addresses belong to the same wallet based on a pair of addresses being used as input for a single transaction?


Assuming that all of the inputs to a transaction come from the same wallet, are often referred to as "common heuristics for having inputs". However, it is possible to create transactions with input from different wallets. Therefore, there is no way to use this heuristic with 100% accuracy. In many cases it can work, but in many cases it will fail.

Can I check whether the address pair input is not part of a larger transaction or fund draw transaction, for example from a blockchain explorer?

No, the transaction data that is sent to the network intentionally does not contain any information about which software / method was used to create the transaction. In some cases, "transaction fingerprint" can be used to make an assumption about this, but again, at best, this is a guess, false alarms can also be easily created.

In which case would multiple entries within a single transaction belong to different purses in addition to enhancement transaction and fundraw transaction?

Some examples:

  • Coinjoin transactions (e.g. wasabi wallet, join market)
  • Lightning network channels (2of2 multisig)
  • Other multisig purses (many possible situations)
  • Payjoin transactions (similar to coinjoins, but not many working implementations afaik)
  • etc

What is the means of single & # 39; | & # 39; Operator in php?

binary comparison instead of boolean. The same applies to & vs. &&.

bitwise, if both are true, it is true (1), otherwise it is false.

0b0001 | 0b0001 == 0b0001
0b0001 | 0b0000 == 0b0001
0b0000 | 0b0000 == 0b0000
0b0010 | 0b0001 == 0b0011 (3 decimal places)

Binary and bitwise must both be true (1) to get a true result, otherwise false (zero).

0b0001 & 0b0001 == 0b0001
0b0001 & 0b0000 == 0b0000
0b0000 & 0b0000 == 0b0000
0b0010 & 0b0001 == 0b0000

There is also xor where if both are true (1) the result is false (0), otherwise it behaves like single |

0b0001 ^ 0b0001 == 0b0000
0b0001 ^ 0b0000 == 0b0001
0b0000 ^ 0b0000 == 0b0000
0b0010 ^ 0b0001 == 0b0011

XOR is often used in bitmap graphics because it is an easy way to draw an inverse video sprite that cannot be drawn by simply XORING the sprite onto the back buffer.

If you are not familiar with binary operations, it probably doesn't make much sense.