#koistudy 2

• Based on: Python 2.7, Flask, Jinja2, MongoDB, bcrypt

---

##Installing requirements

###Python modules

####Installing pip (on CentOS/RHEL/Fedora)

$ sudo yum install python-pip 

####Installing pip (on Ubuntu)

$ sudo apt-get install python-pip 

Note: Python 2.7.9 and after includes pip by default. ####Installing pip (on macOS)

$ curl https://bootstrap.pypa.io/ez_setup.py -o - | sudo python
$ sudo easy_install pip

####Installing Flask

$ sudo pip install Flask

####Installing PyMongo

$ sudo pip install pymongo

###MongoDB

macOS

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
$ brew install mongodb
$ sudo mkdir -p /data/db
$ sudo chmod 777 /data/db
$ mongod

CentOS / Fedora / RHEL (x86_64 system, change baseurl to i686 on i686 system)

• Add following to /etc/yum.repos.d/mongodb-org-3.0.repo

[mongodb-org-3.0]
name=MongoDB Repository
baseurl=http://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/
gpgcheck=0
enabled=1

• run following

$ sudo yum install -y mongodb-org

• You may install mongodb 2.4 by yum install -y mongodb, but it may conflict with other packages.

CentOS 7

• run following

$ sudo yum install -y mongodb-server

Ubuntu

$ sudo apt-get install -y mongodb

###bcrypt

####macOS

$ brew install pkg-config libffi
$ export PKG_CONFIG_PATH=/usr/local/[YOUR_USERNAME]/libffi/3.0.13/lib/pkgconfig/
$ sudo pip install bcrypt

####CentOS/RHEL/Fedora/Ubuntu

$ sudo pip install bcrypt

---

##Let's run!

• You have to start mongod first
  • On Linux, type following

$ sudo chkconfig mongod on
$ sudo service mongod start

• On macOS, type following

$ mongod

• Now, type following in your working directory on another terminal

$ python web.py

• Type http://localhost:5000 in your browser and watch what happens

For Windows User

• You have to install virtualenv Documentation

> pip install virtualenv
> pip install virtualenvwrapper-win

• Create virtualenv

> mkvirtualenv koistudy2
> setprojectdir .

• Now install flask

> pip install flask 

• Run

> python web.py 

• Type http://127.0.0.1:5000 in your browser and watch what happens