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Arghya Saha

Arghya Saha

By profession a coder, who also loves trekking, biking, handstand, running marathons, doing long distance cycling, swimming, in short an outdoor person. "Everything is Impermanent, Be happy" 🙃

How to transfer files from EC2 to your local without ssh?

How to transfer files from EC2 to your local without ssh?

One of the most common situations while working with remote servers is to transfer huge files from the remote server to our local machine for better debugging. We all have gone through the issue where you cannot directly ssh into the remote machine, i.e. you have some kind of

How to add a default 404 error page in Django?

How to add a default 404 error page in Django?

404 is one of the most common errors for web applications to throw. But it is important to make sure that the end-user is not left hanging after a 404 error occurs, i.e. having no CTA (call to action) button available to the end-user. In the below example the

Show Output of shell command in realtime

Show Output of shell command in realtime

Python is a very powerful language that is used for automation. And a lot of times we create CLI tools using python. Python can be used to write a wrapper that would call Unix commands and we want to also see the output of those commands. Let us see how

How to query reverse foreign key relationship in Django queryset?

How to query reverse foreign key relationship in Django queryset?

TL;DR class Post(models.Model): content = models.TextField() class Comment(models.Model): comment_content = models.TextField() post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='comments_rel') created_at = models.DateTimeField(auto_add_now=True) # get all comments for a given post created in last 1 week last_

How to use a different delimiter for Python Template?

How to use a different delimiter for Python Template?

Python template is a super powerful feature that can help you to fill the placeholders on the fly. But by default, the delimiter used by python for the template is a dollar $ , though this is perfect, at times you might need to use dollar in your final string and that

How to fix any Django Migration issue in local?

How to fix any Django Migration issue in local?

Let us resolve any Django migration issue locally. Let us say you added a new field into the models.py file which caused the migration failure. The reason for migration failure can be anything, maybe a bad state of the database, or failure of old migration command, etc. I would

How to add custom security groups to beanstalk?

How to add custom security groups to beanstalk?

.ebextensions can help you attach custom security groups to the instance. * Create a new security group, make sure to name the security group appropriately. You can add your custom inbound and outbound rules to the configuration. Let us name it demo-security-group, make sure to use the Security Group Name and