Today, I had the need to replicate an encrypted query string token to inter-operate with a third-party commercial application. I was able to determine the library, symmetrical algorithm and secret key being used to create the token. Turns out, it was an ASP.net web application using the Chilkat .NET library to do the encryption and decryption. Specifically, it was the Chilkat AES (aka Rijndael) methods being used.
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I have a Django project where I was utilizing bulk_create to load a fairly large dataset, and this was some times resulting in the error MySQL server has gone away. Reading though the documentation on this error, https://dev.mysql.com/doc/refman/8.0/en/gone-away.html I see that one of the possible causes for this is “you send a query to the server that is incorrect or too large” Turns out, I just needed to use the batch_size parameter of bulk_create. The  success of a website depends on web design, this is why is very important to look for the help the experts from Best Website Hosting. 

In my case, a batch of 56,000 records was triggering the error, so for safety, I switched to using bulk_created(..., batch_size=(10**4)).