Deficiencies of accuracy score are well known. It is simple but often misleading metric. Accuracy answers the question how often a model is correct (say model is correct 82% of the time). But it fails to capture practical implications of class imbalance. If you want to reliably capture classification performance…

TL;DR Prefer dict() over {} when keys are simple literals that are valid Python identifiers. With dict() we avoid noisy apostrophes around keys. Rationale Get less visual noise by avoiding repetitive apostrophes. This is especially beneficial when dealing with dictionaries where keys are naturally simple, like HTTP/URL params. Consider which param list…

TL;DR Since Python 3.3 it is possible and practical to avoid __init__.py clatter and its implicit package initialization. Prefer the new namespace packages (no __init__.py) over regular packages (with __init__.py) where possible. Rationale The __init__.py was originally introduced to Python to explicitly mark directory as Python package. The intention was to avoid…

Desired setup The desired setup is what we call “should just work”: We want to use official Mullvad Daemon and Mullvad GUI Mullvad to auto-connect once Internet connection is established by NetworkManager Mullvad to auto-reconnect when Internet connection changes (like, you moved to another WiFi) — roaming Mullvad to use its own…

The verification code just won’t come to my email. Being locked out of my DigitalOcean account I wasted many hours of my life with pointless trial and error. Yes, my mailbox is working perfectly fine. In fact I do receive other DigitalOcean e-mails. Yes, I verified spam million times, as…

This article is not sponsored and contains no referral links to any products. I acquired all mentioned hardware wallets at my own cost. TL;DR: BitBox02 is a quality and well balanced hardware wallet good for general public and small-to-medium funds. There are some controversial design choices. …

It’s pretty well established DeFi is actually CeFi — centralized finance — as ultimately there are always some actors running the show from behind the curtains, at least in the Ethereum smart contracts world. There is tons of counter party risks involved. However, decentralization is just means to an end…

A pro-tip regarding connecting Ledger Nano S to your Electrum desktop wallet. If you face the following error: Failed to create a client for this device. Make sure it is in the correct state. error getting device info open failed Remember that you need to: Close Electrum wallet Run Ledger Live Install the Bitcoin app via Ledger Live Start the Bitcoin app on the Ledger — the Ledger should display “Use wallet to view accounts”

The hardest thing about backups is not preventing data loss but preventing data leakage, either by accident or by targeted attack. Requirements Here are my personal requirements for a backup solution: Locally encrypted. Solution must natively support modern authenticated encryption. Files metadata must also be encrypted. …