I've been hosting a public Gitea instance for a few years now for personal projects. For now, I've decided to shut it down and move my public projects to Github.
I'm turning it down because I don't feel the maintenance is worth my time. I set up a public Git …
I was trying to remove trailing whitespace from some files with sed:
sed -i 's/[[:space:]]+$//g' some_file.py
But this left the file unmodified! For some reason, the pattern wasn't matching. I took a look at the man page and noticed the -E flag:
use extended regular expressions in …
My DVD and Blu-ray collection is stored on a 2 TB drive. When I buy a new Blu-ray, I rip it with MakeMKV and encode it with Handbrake, then store it on the drive. DVDs can be read directly by Handbrake. Then, I make this collection available on my LAN …
These are partly notes for myself, but I'll publish it in case it helps someone.
After installing Docker, I could no longer reach my VMs from outside the VM host (where I also wanted to run Docker).
My network configuration looks something like this:
... 2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP …
Today I encountered a surprising SQLAlchemy gotcha. In short, if you have a Query object and call
its order_by method on the same column more than once, the first ORDER BY is not superseded.
Here's an illustrative example. I'll include the boilerplate code (schema, etc.) at the end of the …
I was hoping to set up a read-only SD card with a ram-based filesystem on a Raspberry Pi. They're kind of notorious for becoming unbootable, and understandably so, after the power's been pulled a few times. I decided to play around on a Debian 10 VM …
I was having a hard time trying to wrap my head around how initramfs-tools works. Basically, this
is the infrastructure that a Debian system typically uses to generate the initramfs, the inital
in-memory, read-only filesystem used while the Linux kernel is booting (after the bootloader, but
before most of the …
I knew from way back when, in the Python 2 days, that xrange was better than
range because it was lazy (and range was kept around for backwards compatibility). All this
means is that range(1000000) doesn't allocate a list with a million integers. Python 3 came
around, and range …
I've made some approximation of this recipe a couple of times and have been happy with how it turned out.
The recipe itself is meant to serve as a loose guideline--you could substitute a lot of the ingredients and it would turn out fine. For example:
Here's the background: I had some structured data that I wanted to log to a database. That took the form of Python classes something like this:
class Message:
code = 0x00
endianness = '!'
payload_format = {
'device_address': 'L',
'packet_id': 'L',
'length': 'L',
'enable': 'L',
}
def __init__(self, **kwargs):
self.fields = kwargs
I wrote …