DEV Community: Hodunov

Fixed: slow internet on WSL 2 on Ubuntu 22.04 LTS on Windows 11

Hodunov — Sat, 30 Apr 2022 15:08:02 +0000

When upgrading from Windows 10 to Windows 11, you can certainly run into a lot of problems. One of them is the really slow internet speed in Ubuntu 22.04 LTS in WSL 2.

To solve this problem, you will need to follow a short instruction.

TL;DL: if it seems easier and faster to you - reinstall the WSL feature.

A possible solution for Windows 10 is described in the instructions here - https://townsyio.medium.com/wsl2-how-to-fix-download-speed-3edb0c348e29 .
The solution is to change the vEthernet adapter (WSL) settings.
But in my case, it was not on the list of available.
The solution from the github issue helped me:

Run PowerShell as administrator and run the following command, it will disable vEthernet (WSL):

Disable-NetAdapterLso -Name "vEthernet (WSL)"

In the WSL terminal, run the commands:

sudo echo "[network]" > /etc/wsl.conf
sudo echo "generateResolvConf = false" >> /etc/wsl.conf
sudo rm /etc/resolv.conf
sudo echo "nameserver 8.8.8.8" > /etc/resolv.conf
sudo chattr +i /etc/resolv.conf

And then turn off WSL in the PowerShell terminal: wsl --shutdown

Recursive XML parsing using ElementTree module in Python

Hodunov — Tue, 13 Jul 2021 21:06:19 +0000

Working with files in python is not a difficult task.

Suppose you have the task of converting an xml file coming to you into a python dictionary. And then do some manipulation with it at your discretion.

How do you handle this task with as little code as possible? We are lazy, right?
By using recursion, of course.
Let's see how to do it without using any external libraries. Python has a nice ElementTree XML API



import xml.etree.ElementTree as ET


def xml_to_dict_recursive(root):
    """
    Recursively walk through the root and turn it into a dict.
    :param root: <class 'xml.etree.ElementTree.Element'>
    :return: dict
    """
    for children in root.iter():
        if len(children) == 0:
            return {root.tag: root.text.strip()}
        else:
            return {root.tag: list(map(xml_to_dict_recursive, children))}


def convert_xml_file_to_dict(file):
    """Process the kml file and return the dictionary."""
    tree = ET.parse(file)
    root = tree.getroot()
    return xml_to_dict_recursive(root)


with open('note.xml') as file:
    xml_dict = convert_xml_file_to_dict(file)

Easier than leaving office on Friday!
Python is a wonderful language for working with data.