matthewhegarty

Performance improvements for bulk import

I implemented for my own use case - not fully tested - use at your own risk

This is how I improved performance of django-import-export when importing a large set of new rows.

• Thinkpad T470 i5 processor (Ubuntu 18.04)
• 20,000 new rows to be inserted
• total import duration 5.4 seconds

satishgunjal

import subprocess

try:
    output = subprocess.check_output(['sudo', 'iwgetid'])
    print("Connected Wifi SSID: " + output.split('"')[1])
except Exception, e:
    print e

kentbrew

How to Change your Chrome Default Language

Open up a Terminal window. (If you have never seen Terminal before, go to Spotlight Search and type "Terminal.")

In the Terminal box, try this:

defaults read com.google.Chrome AppleLanguages

If you see this:

Epillepsy

import Foundation
import UIKit
//MARK: For Swift 3
class IPCameraView: UIView, URLSessionDataDelegate {
    
    var imageView:UIImageView
    
    var url: URL?
    var endMarkerData: NSData
    var receivedData: NSMutableData

gunjanpatel

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

homme

// MIT license (c) andelf 2013


import (
	"net/smtp"
	"errors"
)

type loginAuth struct {
  username, password string