How to install and build python application in linux?

How to install and build python application in linux?

This topic installing and creating simple server based on python

1. Install python

yum install python

2. Install pip for python .

Epel repo required

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm

rpm -ivh epel-release-latest-6.noarch.rpm

yum install python-pip

3. install rpyc for server . ( to check pip)

pip install rpyc

with proxy

pip install rpyc –proxy=http://<IP:PORT>

4 . pyinstaller to create executables

This is for python 2.6.2 . This is default for RHEL 6 . For python 2.7 pip works for pyinstaller

wget https://pypi.python.org/packages/c3/a3/d50648bc99a8d5d6c533fc5c1101cc18014d0782e7ddbe9744ad2d56ad49/PyInstaller-2.1.tar.gz

extract the file

python setup.py install

5. Test the script

Create simple python file

#!/bin/python

print 'TEST'

as test.py

./pyinstaller.py --onefile /tmp/new.py

it will create , exe under dist folder

6. Creating simple server with logger in python

myserver.py

#!/bin/python

import rpyc,logging,logging.handlers

from rpyc.utils.server import ThreadedServer

LOG_FILENAME = '/tmp/monitorServer.log'

my_logger = logging.getLogger('MyLogger')

my_logger.setLevel(logging.INFO)

formatter = logging.Formatter("%(asctime)s - %(message)s")

handler = logging.handlers.RotatingFileHandler(

LOG_FILENAME, maxBytes=1024, backupCount=5)

handler.setFormatter(formatter)

my_logger.addHandler(handler)

if __name__ == "__main__":

server = ThreadedServer(MyService, port = 18812)

my_logger.info(" Listening at 18812")

server.start()

This will create server running on 18812

7. Build server

./pyinstaller.py --onefile myserver.py

8. Adding as service to start when ever server starts

a. Create script under /etc/init.d

#!/bin/bash

# chkconfig: 345 99 10

# description: my Monitor server based on Python

#

case "$1" in

'start')

/opt/myserver 2>/tmp/mm_error.log &;;

'stop')

echo "put something to shutdown or kill the process here";;

esac

as myserver under /etc/init.d

Where /opt/myserver is the server exe

Other options are default

8. Adding chkconfig

chkconfig --add myserver
0. chkconfig --list myserver

After reboot check the port to verify server is running or not