Category: Python

Daily backup script in Python

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How to create daily backup in python ? Using shutil and date packages we can create a simple daily backup script.

# Author : Manoj Koyadan
# Purpose: Daily folder backup script 

# Operating System – Ubuntu 64-bit
# Python Version – 2.7.11

import shutil
from datetime import date

class backup:
def __init__(self):
self.backupday = date.today()
self.newfolder = self.backupday.strftime(“%B%d”)
self.fromfolder = “/home/hostname/work”
self.tofolder = “/home/hostname/backup/” + self.newfolder
self.backup()
print “Backup created as zip file at-“,self.tofolder

def backup(self):
shutil.copytree(self.fromfolder,self.tofolder) #copying
shutil.make_archive(self.tofolder,’zip’,self.tofolder) #zipping
shutil.rmtree(self.tofolder) #cleaning

if __name__ == “__main__”:
backup = backup()

Note that above program reads all files from a particular folder and copy to another backup folder after zipping it. You can customize it by choosing only particular file types. This script can be automated by calling from a shell script or control-m job. it will create new folder every day.

Below script is for windows. Only difference is file path

# Operating System – Windows 7 64-bit
# Python Version – 2.7.11

import shutil
from datetime import date

class backup:
def __init__(self):
self.backupday = date.today()
self.newfolder = self.backupday.strftime(“%B%d”)
self.fromfolder = “C:\\work”
self.tofolder = “C:\\backup\\” + self.newfolder
self.backup()
print “Backup created as zip file at-“,self.tofolder

def backup(self):
shutil.copytree(self.fromfolder,self.tofolder) #copying
shutil.make_archive(self.tofolder,’zip’,self.tofolder) #zipping
shutil.rmtree(self.tofolder) #cleaning

if __name__ == “__main__”:
backup = backup()

Note:- Above code may not work if you copy and paste exactly. Please format as per python interpreter ( or Use any python IDLE, I used Spyder)

Analog Clock in Python

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How to create a analog clock in python ?. Need little bit of mathematical knowledge.
This is the place you can brush your knowledge in Sin and Cos(Mathematical functions)
Learn more on “Polar coordinate system” and understand the fundamentals.

Clock code has been developed and tested with below versions.

Operating System – Windows 7 64-bit
Python Version – 2.7.11

Packages require – Tkinter

# Author : Manoj
# Date : Jan-18-2016
# Purpose: Analog clock

#!/usr/bin/python
import Tkinter as tk
from math import sin,cos,pi
import time

class clock(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
self.title(“sqlandplsql.com Clock”)
self.w = tk.Canvas(self, width=520, height=520, bg=”Cyan”, relief= “sunken”, border=10)
self.xcentre = 270
self.ycentre = 270
self.radius = 250
self.w.pack()
self.w.create_oval(20,20,520,520) #Main circle
self.w.pack()
self.w.create_oval(265,265,275,275,fill = “Black”) #Centre Dot
self.w.pack()
#Second Hand
self.w.create_line(0,0,0,0,fill = “Blue”, width=1,tags=”seconds”)
#Minute Hand
self.w.create_line(0,0,0,0,fill = “Blue”, width=2,tags=”minute”)
#Hour Hand
self.w.create_line(0,0,0,0,fill = “Blue”, width=4,tags=”hour”)

for i in range (0,12):
# Drawing hour co-orninates
self.degree = i*30
self.w.create_line((self.radius * cos((self.degree*pi)/180)) + 270,(self.radius * sin((self.degree*pi)/180)) + 270, (240 * cos((self.degree*pi)/180)) + 270, (240 * sin((self.degree*pi)/180)) + 270,fill = “Red”, width=6) #

for i in range (0,60):
# Drawing minute co-orninates
self.degree = i*6
self.w.create_line((self.radius * cos((self.degree*pi)/180)) + 270,(self.radius * sin((self.degree*pi)/180)) + 270, (240 * cos((self.degree*pi)/180)) + 270, (240 * sin((self.degree*pi)/180)) + 270 )
self.change_clock()

def change_clock(self):
hour = time.localtime()[3]
minute = time.localtime()[4]
seconds = time.localtime()[5]
# seconds
sec_degree = seconds*6 – 90
sec_angle = (sec_degree*pi)/180
sec_x = 270 + 230 * cos(sec_angle)
sec_y = 270 + 230 * sin(sec_angle)
self.w.coords(“seconds”, (self.xcentre,self.xcentre,sec_x,sec_y))
# minute
min_degree = minute*6 – 90
min_angle = (min_degree*pi)/180
min_x = 270 + 200 * cos(min_angle)
min_y = 270 + 200 * sin(min_angle)
self.w.coords(“minute”, (self.xcentre,self.xcentre,min_x,min_y))
#hour
hour_degree = hour*30 – 75
hour_angle = (hour_degree*pi)/180
hour_x = 270 + 170 * cos(hour_angle)
hour_y = 270 + 170 * sin(hour_angle)
self.w.coords(“hour”, (self.xcentre,self.xcentre,hour_x,hour_y))
self.after(1000, self.change_clock)

clock = clock()
clock.mainloop()

analog_clock_python

Note:- Above code may not work if you copy and paste exactly. Please format as per python interpreter ( or Use any python IDLE )