Python and xml

Python is an excellent choice for writing programs that process XML data.
XML's is a simplified subset of the Standard Generalized Markup Language (SGML).
He set of tools helps developers in creating web pages.
This is one simple example which I use with "conky":

from xml.dom import minidom as dom
import urllib2
def fetchPage(url):
    a = urllib2.urlopen(url)
    return ''.join(a.readlines())
def extract(page):
    a = dom.parseString(page)
    item2 = a.getElementsByTagName('SendingDate')[0].firstChild.wholeText
        print "DATA ",item2
    item = a.getElementsByTagName('Cube')
    for i in item:
        if i.hasChildNodes() == True:
                e = i.getElementsByTagName('Rate')[8].firstChild.wholeText
        d = i.getElementsByTagName('Rate')[18].firstChild.wholeText
                print "EURO  ",e
        print "DOLAR ",d

if __name__=='__main__':
    page = fetchPage("http://www.bnro.ro/nbrfxrates.xml")
    extract(page)

First step ...and some examples

So the first step to use python is how to load module.
This is simple one:

import sys
import math
from math import sin
dir(math)

['__doc__', '__file__', '__name__', 'acos', 'asin', 'atan', 'atan2', 'ceil', 'cos', 'cosh', 'degrees', 'e', 'exp', 'fabs', 'floor', 'fmod', 'frexp', 'hypot', 'ldexp', 'log', 'log10', 'modf', 'pi', 'pow', 'radians', 'sin', 'sinh', 'sqrt', 'tan', 'tanh']

Next is two examples with calendar module.

import calendar
time_cal=calendar.TextCalendar(calendar.FRIDAY)
print time_cal.formatmonth(2009,02)
 February 2009
Fr Sa Su Mo Tu We Th
     1  2  3  4  5
6  7  8  9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28

If i use this into web page this is the solution:

import calendar
html_cal=calendar.HTMLCalendar(calendar.MONDAY)
print html_cal.formatmonth(2009,02)

February 2009
Mon
Tue
Wed
Thu
Fri
Sat
Sun






1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28