Heureka - Blog
The small success stories are the ones that count.
Link Diary Juli 2022
Videos, articles and other links I stumbled upon in june 2022, which I want to remember and share.
Python slow when concatenating strings
I was concatenating translation file contents to one string and observed rather long runtimes.
Turns out Python is not very efficient in this regard. So I reworked it to use a list.
- strings_test.py
import time start = time.time() str1 = "" for i in range(1,10000000): str1 += "A"*1000 print("Concat took: " + str(time.time() - start)) start = time.time() str1 = "" str2 = [] for i in range(1,10000000): str2.append("B"*1000) print("List collection took: " + str(time.time() - start)) start = time.time() str1 = "\n".join(str2) print("Final join took: " + str(time.time() - start))
Concat took: 4.820241689682007 List collection took: 0.9731082916259766 Final join took: 2.7453043460845947
Solved: Chrome does not store passwords anymore
For some reason my Chrome did not autofill stored passwords anymore.
The list of stored passwords was empty and even when I saved a new password, the next time it would not be autofilled.
Problem: maybe the local database broke.
Solution: Force to reload the list from the Cloud by removing the local database.
Under Linux that is:
cd ~/.config/google-chrome/Default mv ./Login\ Data-journal ./Login\ Data-journal.bak mv ./Login\ Data ./Login\ Data.bak
Credits: https://unix.stackexchange.com/questions/538482/chrome-does-not-save-my-passwords
Link Diary June 2022
Videos, articles and other links I stumbled upon in june 2022, which I want to remember and share.
i3: Disable all shortcuts when gaming
I was playing Biomutant and accidentally made it close several times because of the key bindings the game used in busy fight situations.
The use of Q W A S D E, Alt and Shift made me slip to the super key quite often. Super+Shift+Q in my case kills an application. Not so good while fighting.
Solution: modes.
When in a mode, new key bindings apply, which basically disables all usual bindings for the time being.
So I added a mode "play_game" with no bindings except the one to exit the mode (which is the same as how to enter).
I used the Scroll-Lock key which is very far from any key I might press.
bindsym Scroll_Lock mode "play_game"
mode "play_game" {
bindsym Scroll_Lock mode "default"
}