Python Classes

A short intro on classes in Python with code snippets and notes taken from the python docs

Class: a blue print for an instance
Instance: a constructed object of the class
Type: indicates the class the instance belongs to
Attribute: any object value : object.attribute
Method: a "callable attribute" defined in the class

Flask pe Raspberry cu Postgres, nginx si uwsgi

Raspberry Arch Linux pe ARM. Install guide here

Se presupune ca sistemul e conectat la internet.

pacman -S nginx python2-virtualenv python-virtualenv uwsgi-plugin-python,uwsgi-plugin-python2 python2-setuptools python2-pip posgtresql bash-completion gcc pithon-pip vim htop atpo sudo nload minicom links tcpdump git tmux ntpd zsh

VLAN-uri

Am vrut sa am doua sisteme sa comunice prin switch pe vlan-uri separate.
Ar fi doua optiuni.

1. SVI pe switch
2. SVI pe linux.

Findca sw-ul nu este gbit  si raspberry la fel , ma lasa cu desktop-ul cu functia de router.
In sensul acesta trebuie sa facem in felul urmator:

Keeping track of notes - notepad on steroids

You may like Zimwiki .

It's a wiki based program that's bare bones, but has the basics: font format, headers, bullet lists, number lists, to do boxes.

Connecting a switch to GNS3

Connecting a switch to GNS3
VLANs
MAC Table overflow

Haskell Introducere, Liste, uplu, functii, tipuri polimorfice, supraincarcare.

Tipurile de baza:

·        Bool – valori logice

Contine valorile logice False si True.

·        Char – caractere

Contine toate caracterele disponibile de la tastatura precum ‘a’, ‘_’, ‘V’, precum si un numar de caractere de control precum ‘\n’, ‘\t’.

·        String – siruri de caractere

Acest tip contine toate secventele de caractectere, precum “abc”, “1+2=3” si sirul vid “”.

·        Int – numere intregi intre -2³¹ si 2³¹ -1

·        Integer – numere intregi cu precizie infinita

·        Float - single-precision floating-point numbers

Haskell - Defining custom data types

• allows us to add structure to the values in our programs
• defining our own types also imrpoves the safety of our code
• haskell will not allow us to accidentally mix values of two values that are structurally similar but have different names.

-- file: ch03/BookStore.hs
data BookInfo = Book Int String [String]
                deriving (Show)

1. The BookInfo after the data keyword is the name of our new type. We call BookInfo a type constructor. 
2. The Book that follows is the name of the value constructor (sometimes called a data constructor)
3. After Book, the Int, String, and [String] that follow are the components of the type.