SimionBaws.ro

PIP - upgrade all packages from requirements.txt (interactively)

2017-04-26T15:23:00.005+03:00

pip-upgrader

An interactive pypi pip requirements upgrader. Because upgrading requirements, package by package, is a pain in the ass. It also updates the version in your requirements.txt file.

Purpose

This cli tools helps you interactively(or not) upgrade packages from requirements file, and also update the pinned version from requirements file(s).
If no requirements are given, the command attempts to detect the requirements file(s) in the current directory.
Quick preview:

Installation

pip install pip-upgrader

Usage

Activate your virtualenv (important, because it will also install the new versions of upgraded packages in current virtualenv)

CD into your project. Then:

$ pip-upgrade

Arguments:

requirements_file(s)          The requirement FILE, or WILDCARD PATH to multiple files. (positional arguments)
--prerelease                  Include prerelease versions for upgrade, when querying pypi repositories.
-p <package>                  Pre-choose which packages tp upgrade. Skips any prompt.
--dry-run                     Simulates the upgrade, but does not execute the actual upgrade.
--skip-package-installation   Only upgrade the version in requirements files, don't install the new package.
--skip-virtualenv-check       Disable virtualenv check. Allows installing the new packages outside the virtualenv.
--use-default-index           Skip searching for custom index-url in pip configuration file(s).

Examples:

pip-upgrade             # auto discovers requirements file. Prompts for selecting upgrades
pip-upgrade requirements.txt
pip-upgrade requirements/dev.txt requirements/production.txt

# skip prompt and manually choose some/all packages for upgrade
pip-upgrade requirements.txt -p django -p celery
pip-upgrade requirements.txt -p all

# include pre-release versions
pip-upgrade --prerelease

Final notes

If you encounter any bugs, please open an issue and it will be magically resolved :)
TODO:
support for local caches (index-url) from ~/.pip/pip.conf (ex: devpi)
support for `package>=0.1.0` (only works for `package==0.1.0`)
Have fun! :)

Contributing

Clone the repository, create a virtualenv, then run:

pip install -e .[test]
py.test

This command will :

run tests
print coverage report
print pep8 errors

Installed Percona Server / Mysql 5.7 and cannot start without root password.

2016-05-18T10:46:00.004+03:00

To fix this:

Make sure your data dir is empty.
mysqld --initialize-insecure --datadir=/path-to-datadir --user=youruser
Done. Now you have root user with no password

Mac OSX AirDrop not working (not seeing people or not seen) - HOW TO FIX

2016-05-18T10:44:00.001+03:00

AirDrop does not work all the time. Either you cannot see other people, or other people can't see you. To fix this issue, do these steps:

Turn off Bluetooth on your Mac
sudo rm /Library/Preferences/com.apple.Bluetooth.plist
Turn Bluetooth back on

Fixed :)

Fix - Updated from OSX El Capitan Gold Master to Final Release, andbeta update keeps showing in AppStore

2015-10-01T09:46:00.001+03:00

So, if you installed OSX Beta or GoldMaster versions, your account enrolled for pre-release updates.

Now, you installed OSX El Capitan from app store (final release, 10.11) but in AppStore -> Updates, Developer Beta keeps whowing you to update to version 10.11.1. This is because your account has now enrolled to pre-release updates.

To fix this, go to System Preferences ->
AppStore
You can see there is a setting called "Your computer is set to receive pre-release Software Update seeds".
Click "Change" and then "Do not show pre-release Updates".

Done. You can now refresh the Updates tab in AppStore.
Everything is clean.

OSX Disk Utility Erasing/Formatting stuck at "Unmounting disk ...", "Couldn't unmount disk"

2015-06-15T10:23:00.001+03:00

If you are trying to format/erase a disk and disk utility/diskUtil is stuck at "unmounting disk", probably "fsck_hfs" is stuck in a loop, trying to repair it before mounting.

I've seen solutions where you must boot from an external operating system, bla blah. Too complicated and time consuming.

To fix this fast and easy, start formatting, wait for "unmounting disk" message to appear, then go to Terminal, find the process with the following command

ps ax | grep fsck_hfs

You'll get something like

simion@Simions-MacBook-Pro:~$ ps ax | grep fsck_hfs
 3693   ??  U      1:32.61 /System/Library/Filesystems/hfs.fs/Contents/Resources/./fsck_hfs -y /dev/disk2s2
 3984 s000  S+     0:00.00 grep fsck_hfs

Then ... kill the process with

sudo kill 3693

Then it should continue automatically with formatting the drive.

Note that you must do this before disk utility gives the error message "Could not unmount disk".

Aplicatia Bancomate pentru Android (În curand și pe IOS)

2015-03-08T03:45:00.001+02:00

Această aplicație vă ajută să gasiți ușor și rapid bănci și bancomate (atm-uri) în toată România.

Important: momentan lucrează doar cu anumite bănci, pentru a asigura corectitudinea datelor. Baza de date este în continuă dezvoltare, si vom adăuga bănci noi în perioada ce urmează.

Specificații:
- Afișeaza cele mai apropiate bancomate și bănci din locația dumneavoastră, sau in orice alt punct pe hartă
- Locațiile bancomatelor sunt actualizate zilnic, din surse oficiale, in mod automat (dacă apar bancomate noi, sau se desființeaza bancomate vechi, noi vom ști primii)
- Opțiune de navigare catre un bancomat ales
- Opțiune de căutare adresă / locație
- În cazul băncilor (sucursalelor) este afișat și un număr de telefon
- Filtru în funcție de banca aleasă
- Acoperire in toata Romania
- Pentru eficiența transferului de date/baterie, sunt afișate cele mai apropiate 30 bancomate/sucursale din locația curentă sau locația aleasă de dumneavostră, calculele fiind efectuate pe server.

Ce deosebește această aplicatie față de celelalte aplicații din acest domeniu?
Contine doar acele bancomate ale căror coordonate pe hartă sunt obtinute din surse oficiale (banci). Bancile care nu oferă coordonate exacte ale bancomatelor nu sunt implementate momentan (geocodarea adresei ar putea fi imprecisă, acest subiect va fi tratat în următoarea versiune). Deci cu noi mergeți la sigur!
În plus, baza de date este actualizata zilnic, in mod automat, pentru fiecare bancă în parte.

Băncile implementate în momentul de față (coordonate din surse oficiale):
- Banca Transilvania
- Raifeissen Bank
- BRD groupe societe generale
- ING Romania
- Bancpost
- Alpha Bank
- Euronet (Banca Carpatica)
- OPT Bank
- Unicredit Tiriac Bank
- Piraeus Bank
- Banca Romanească
În acest moment exista peste 6000 de bancomate în baza de date, pentru aceste bănci.
Bănci ce vor fi implementate (prin geocodarea adresei) în perioada ce urmează:
- BCR - Banca Comerciala Romana (80% finalizat)
- Garanti Bank
- BCR
- CEC Bank
- CreditEurope Bank
- Libra Bank
- Pro Credit Bank
- Leumi Bank
- Millenium Bank
- Marfin Bank

[gallery columns="2" ids="449,450,451,452,453,454,455,456"]

Aplicatia Bancomate pentru Android

Improve font rendering for IntelliJ IDEA / Pycharm in Ubuntu

2014-11-26T17:25:00.001+02:00

Stock font rendering in Pycharm / Intelliji IDEA is horrible on Ubuntu. To improve it, change the following:

First of all, we need to install Infinality fonts:

sudo add-apt-repository ppa:no1wantdthisname/ppa
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install fontconfig-infinality

sudo /etc/fonts/infinality/infctl.sh setstyle linux
sudo gedit /etc/profile.d/infinality-settings.sh
# and set
USE_STYLE="UBUNTU"

Installed the patched OpenJDK with fontfix:

sudo apt-add-repository -y ppa:no1wantdthisname/openjdk-fontfix
sudo apt-get update
sudo apt-get install openjdk-7-jdk

In $IDEA_HOME/bin/*.vmoptions add the following: (PS: $IDEA_HOME is the path to IntelliJIdea or Pycharm)

-Dawt.useSystemAAFontSettings=lcd
-Dswing.aatext=true
-Dsun.java2d.xrender=true

and in ~/.profile add

export PYCHARM_JDK=/usr/lib/jvm/java-1.7.0-openjdk-amd64"

or whatever the installed java path is.

Reboot.

Start the IDE and enjoy perfect fonts.

Ubuntu - Fix large fonts for Google Chrome in Address Bar and Bookmarks bar

2014-11-24T10:32:00.001+02:00

Since version 35, chrome switched to Aura framework and does not follow GTK theme anymore. This leads to large font size in address bar, and bookmarks bar.

However, it grabs font size settings from org.gnome.desktop.interface "font-name" property. To fix this, run the following command:

gsettings set org.gnome.desktop.interface font-name 'Ubuntu 10'
# or
gsettings set org.gnome.desktop.interface font-name 'Ubuntu 11'
# depending on your preferences

You must restart chrome for this to work.

Django `CheckboxSelectMultiple` with `ModelMultipleChoiceField` generates too many queries (solution)

2014-09-13T14:57:00.001+03:00

If you use django.forms.ModelMultipleChoiceField with the default widget (django.forms.widgets.SelectMultiple ), all's good.

However, if you need to generate checkboxes for your choices, and use django.forms.widgets.CheckboxSelectMultiple you'll notice that the field will generate alot of queries (one for each element in the queryset), which is really really bad. I personally ended up with hundred of queries.

Fix: add cache_choices=True to your django.forms.ModelMultipleChoiceField

Example:

Good practice:

test = forms.ModelMultipleChoiceField(
        queryset=MyModel.objects.all(),
        cache_choices=True,
        widget=forms.CheckboxSelectMultiple)

Bad practice:

test = forms.ModelMultipleChoiceField(
        queryset=MyModel.objects.all(),
        widget=forms.CheckboxSelectMultiple)

South migrations and MariaDB

2014-08-22T18:33:00.001+03:00

If you're working on a Django project along with other members of your team and you're using MariaDB (while the others are using MySQL) you're gonna have a bad time. Everytime you'll run migrations generated on a machine with other database than yours you'll get a strange exception and Google wouldn't give you too many hopes about solving it.

The exception, django.db.transaction.TransactionManagementError: Transaction managed block ended with pending COMMIT/ROLLBACK is caused by leave_transaction_management method in django/db/backends/__init__.py and its source seems to be an incompatibility between MariaDB and MySQL (even if the former is just a fork of the other one).

So you want a fix? I couldn't find any, but I fixed this by compiling MySQL from AUR (I'm using Manjaro, which is based on Arch Linux). Even if it's not really a solution maybe you're coming here from Google and maybe this will help you to solve your issue: Arch/Manjaro uses MariaDB and South seems to not like it very much.

Command/Shortcut to Lock Screen with "away message prompt" in Linux Mint 17 / Cinnamon

2014-06-24T12:50:00.001+03:00

If you want to have a shortcut with for locking the screen, but with prompt for lock message, here's what you need to do:

Go to Settings -> Keyboard, then click on Keyboard shortcuts tab

Click on Add custom shortcut button, and enter the following command:

python /usr/lib/cinnamon-screensaver-lock-dialog/cinnamon-screensaver-lock-dialog.py

example:

Click Add and then assign it a shortcut.
For example, the default lock screen shortcut is Ctrl+Alt+L. For the one with prompt, you can assign Ctrl+L.

You're done.
When you want to lock your screen with a custom "away" message, just press the shortcut you assigned (Ctrl + L)

Install Skype 4.3 in Arch Linux / Manjaro

2014-06-19T00:46:00.001+03:00

Hi there,

Skype just released version 4.3 for linux. You can read this article from OMG Ubuntu! to see what's new in 4.3

Long story short:

native notifications

UI improvements (new toolbar, better login screen, design changes)

floating widget for Call

cloud based Group Chat

support for PulseAudio 3.0 and 4.0

Currently, the AUR "multilib/skype" package is not upgraded to 4.3. If you don't wish to wait, here's what you must do:

Download Skype -> http://www.skype.com/go/linux (Choose "Dynamic" from distribution dropdown)

Extract the archive
```
cd Downloads

tar -xjf skype-4.3.*
```

Move the contents of the extracted folder to /opt/skype
```
sudo mkdir /opt/skype

sudo mv skype-4.3.*/* /opt/skype
```

Edit /usr/bin/skype , and change the exec command path to exec "/opt/skype/skype" "$@"

#!/bin/bash

LIBDIR="/usr/lib32"

if [[ -e "$LIBDIR/libv4l/v4l2convert.so" ]]; then
        export LD_PRELOAD="${LD_PRELOAD:+$LD_PRELOAD:}$LIBDIR/libv4l/v4l2convert.so"
fi

if [[ -e "/usr/share/skype/lib/libQtWebKit.so.4" ]]; then
        export LD_PRELOAD="${LD_PRELOAD:+$LD_PRELOAD:}/usr/share/skype/lib/libQtWebKit.so.4"
fi

# exec "$LIBDIR/skype/skype" "$@"  # (old one)
exec "/opt/skype/skype" "$@"

Sublime slack - preformatted text

2014-06-09T22:24:00.001+03:00

Changelog in 1.4.5: Whenever you send a code selection (ctrl+alt+u), it is preformatted.

Example:

Django get current user globally in the project

2014-05-23T11:00:00.001+03:00

Sometimes, you will need to get the current authenticated user in models, or other parts of your app.

To achieve this, you must create this middleware and add it to MIDDLEWARE_CLASSES in project settings:

try:
    from threading import local, current_thread
except ImportError:
    from django.utils._threading_local import local

_thread_locals = local()


class GlobalUserMiddleware(object):
    """
    Sets the current authenticated user in threading locals

    Usage example:
        from app_name.middleware import get_current_user
        user = get_current_user()
    """
    def process_request(self, request):
        setattr(
            _thread_locals,
            'user_{0}'.format(current_thread().name),
            request.user)

    def process_response(self, request, response):

        key = 'user_{0}'.format(current_thread().name)

        if not hasattr(_thread_locals, key):
            return response

        delattr(_thread_locals, key)

        return response


def get_current_user():
    return getattr(
        _thread_locals,
        'user_{0}'.format(current_thread().name),
        None)

Usage example:

from myapp.middleware import get_current_user

user = get_current_user()

Invalidate template fragment cache in Django 1.5

2014-05-21T16:23:00.001+03:00

Django 1.5 does not have a utility method to delete template fragment cache, with arguments.

In order to achieve this, you must create a custom method:

from django.core.cache import cache
from django.utils.hashcompat import md5_constructor
from django.utils.http import urlquote


def invalidate_template_fragment(fragment_name, *variables):
    args = md5_constructor(u':'.join([urlquote(var) for var in variables]))
    cache_key = 'template.cache.{0}.{1}'.format(fragment_name, args.hexdigest())
    cache.delete(cache_key)

Example usage:

{% cache 259200 key_name model_instance.pk %}
    ... cached content here ...
{% endcache %}

// note that "model_instance.pk" is optional argument. You can use as many as you need

... and delete the cache:

invalidate_template_fragment('key_name', model_instance.pk)

In django 1.6+ you can do this more easy:

from django.core.cache import cache
from django.core.cache.utils import make_template_fragment_key

key = make_template_fragment_key('key_name', [model_instance.pk])
cache.delete(key)

Sublime Slack 1.4.3 Changelog

2014-04-30T11:53:00.001+03:00

Fixed some bugs

Implemented avatar support. By default the avatar icon is this :

but you can change it with settings:

{
    "team_tokens": {
        "Team 1": "team-1-token-goes-here",
        "Team 2": "team-2-token-goes-here",
    },
    "username": "ST",
    "avatar_url": "http://simionbaws.ro/icons/sublime-48.png",
    "show_plaform_and_name": true
}

Result:

Ubuntu 14.04 ctrl+alt+del shutdown dialog

2014-04-25T09:08:00.001+03:00

Currently , in Ubuntu 14.04 if you press Ctrl+Alt+Del, it pops out the logout or lock dialog.
Many of us were used to have the shutdown/restart dialog prompted on Ctrl+Alt+Del.

Here's how you get the shutdown dialog:

open System Settings -> Keyboard, click on the second tab "Shortcuts", and then click on the "+" icon to add a new shortcut.

Give it a name (ex: "Shutdown dialog") and in the command field enter gnome-session-quit --reboot .

After creating the shortcut, you need to assign it a keybind. Click on "Disabled" in the right side of the shortcut, then press "Ctrl+Alt+Del". A conflict dialog will show up. Click on "Reassign".

Now, when pressing Ctrl + Alt + Del, you will have this dialog shown:

Alternatively, you want to have all the "quit" options in one dialog (lock, suspend, restart, shutdown) you can replace the command with gnome-session-quit --power-off and get this result:

Wine - Diablo 3 via Battle.net launcher error on Ubuntu 14.04

2014-04-24T14:26:00.001+03:00

This error occurs on ubuntu 14.04 when trying to run Diablo III from battle.net launcher:

Wine - Diablo 3 via Battle.net launcher error: Please try again after logging on as an administrator

To avoid this error, you must launch Diablo 3 using the following command:

setarch i386 -3 -L -B -R wine '/path/to/Diablo III.exe' -launch -opengl

Alternatively, if you want to create a shortcut, run:

sudo gedit /usr/share/applications/diablo.desktop

and paste the following content (don't forget to update the path to diablo .exe file, and the icon file)

[Desktop Entry]
Name=Diablo III
Comment=Run Blizzard Diablo III via Wine
Exec=setarch i386 -3 -L -B -R wine '/path/to/Diablo III.exe' -launch -opengl
Icon=/path/to/d3.png
Terminal=false
Type=Application
Categories=Application;

You can download the icon file here: https://dl.dropboxusercontent.com/u/99980406/2014/04/d3.png , save it somewhere and point the location in diablo.desktop file created previously.

Fix ugly Skype theme on Ubuntu 14.04

2014-04-19T12:52:00.001+03:00

Because Skype is a 32bit app and the GTK theme engine is not installed by default for 32bit, skype uses Clearlooks theme instead of the ubuntu's gtk Ambiance theme.

To fix this, install the following:

sudo apt-get install gtk2-engines-murrine:i386 gtk2-engines-pixbuf:i386

Before:

[caption id="attachment_293" align="alignnone" width="620"] Before fixing skype[/caption]

After:

[caption id="attachment_292" align="alignnone" width="620"] After[/caption]

Ubuntu 14.04 installing external .deb fails "Package operation Failed"

2014-04-10T14:02:00.001+03:00

For some reason, installing external .deb files from ubuntu software center fails. The bug is reported on launchpad.

It doesn't really matter why it is not working, because the Ubuntu Software Center itself is slow and heavy.

The workaround given on launchpas is to use "dpkg -i <file.deb>" but the issue with this is that it does not resolve dependencies.

My recommendation is to use "Gdebi" as an alternative. It's extremly fast and lightweight, and it comes with a command line tool, and a GUI tool.

Once you install Gdebi (sudo apt-get install gdebi ), edit the default applications file:

sudo gedit /usr/share/gnome/applications/defaults.list

find the following lines:

application/x-deb=ubuntu-software-center.desktop
application/x-debian-package=ubuntu-software-center.desktop

and replace with

application/x-deb=gdebi.desktop
application/x-debian-package=gdebi.desktop

Ubuntu 14.04 lock screen asking password twice

2014-04-10T13:44:00.001+03:00

So, everyone loves the new Ubuntu 14.04 lock screen, which looks exactly as the login screen.

But there is an issue with it. If you lock your screen manually (Ctrl + Alt + L) and leave your computer a couple of minutes (untill it locks the screen automatically), when you unlock it, it will ask for your password twice.

Workaround: Go to Settings -> Brightness and Lock -> Lock [OFF] (switch it to off).

Sublime Slack 1.4.0 released

2014-03-18T03:11:00.001+02:00

Changelog:

1. File upload

current open file

right click in sidebar, on file

enter file path manually

Screenshots:

2. API errors (example: 'invalid_auth') are sent to user with an alert.

Sublime Slack 1.3.3 bugfixes

2014-03-17T15:58:00.001+02:00

Fixed some critical bugs:

after selecting a receiver from dropdown, sublime does not freeze anymore. Instead, it shows a loader in the status bar while sending the message.

fixed multiple teams name duplicate.

Please update by running "Package Control: Upgrade/Overwrite Packages"

Details: https://github.com/simion/sublime-slack-integration

Sublime Slack 1.3.2 changelog

2014-03-16T23:32:00.001+02:00

Changes:

When sending messages from input, the message can begin with @user, #channel or .group to skip channel/user/group selection

New message from input will have autofilled the last @user #channel or .group used (for quick chatting, if you want to keep replying from sublime while you see received messages in chrome notifications)

Added some fancy loaders when grabbing data from api (channels/groups/users) and when sending message

Details: https://github.com/simion/sublime-slack-integration

Sublime Slack 1.3 released

2014-03-15T23:30:00.001+02:00

Changelog:

support multiple tokens (teams)

send private messages to users

send messages to groups (private channels)

To update your plugin instantly, run "Package Control: Upgrade/Override all packages".

Details: https://github.com/simion/sublime-slack-integration