classyxml

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ClassyXml

An xml file parser that makes the element text and attributes of an xml file accessible as ClassyXml class attributes.

Install it from PyPI

pip install classyxml

Usage

Parsing an XML file

<!-- countries.xml -->
<root>
  <country name="Liechtenstein">
    <rank>1</rank>
    <year>2008</year>
    <gdppc>141100</gdppc>
    <neighbor name="Austria" direction="E"/>
    <neighbor name="Switzerland" direction="W"/>
  </country>
  <country name="Singapore">
    <rank>4</rank>
    <year>2011</year>
    <gdppc>59900</gdppc>
    <neighbor name="Malaysia" direction="N"/>
  </country>
</root>

from classy_xml import ClassyXml

# Load the countries.xml file
classy = ClassyXml('countries.xml')

# Print the XML information
print(len(classy.country))                      # Output: 2

print(classy.country[0].name)                   # Output: 'Liechtenstein'
print(classy.country[0].rank.text)              # Output: '1'
print(classy.country[0].year.text)              # Output: '2008'
print(classy.country[0].gdppc.text)             # Output: '141100'
print(len(classy.country[0].neighbor))          # Output: 2
print(classy.country[0].neighbor[0].name)       # Output: 'Austria'
print(classy.country[0].neighbor[0].direction)  # Output: 'E'
print(classy.country[0].neighbor[1].name)       # Output: 'Switzerland'
print(classy.country[0].neighbor[1].direction)  # Output: 'W'

print(classy.country[1].name)                   # Output: 'Singapore'
print(classy.country[1].rank.text)              # Output: '4'
print(classy.country[1].year.text)              # Output: '2011'
print(classy.country[1].gdppc.text)             # Output: '59900'
print(len(classy.country[1].neighbor))          # Output: 1
print(classy.country[1].neighbor.name)          # Output: 'Malaysia'
print(classy.country[1].neighbor.direction)     # Output: 'N'

Generating an XML file

This will generate the countries.xml file illustrated above.

from classy_xml import ClassyXml, XmlElement

# Create an empty ClassyXml object
classy = ClassyXml()

# Creating Liechtenstein Element
# Setting the text and attributes using the XmlElement arguments
liechtenstein = XmlElement(attributes={'name': 'Liechtenstein'})
liechtenstein.rank = XmlElement(text=1)
liechtenstein.year = XmlElement(text=2008)
liechtenstein.gdppc = XmlElement(text=141100)
liechtenstein.neighbor = XmlElement(attributes={'name': 'Austria', 'direction': 'E'})
liechtenstein.neighbor = XmlElement(attributes={'name': 'Switzerland', 'direction': 'W'})

# Creating Singapore Element
# Setting the text and attributes directly
singapore = XmlElement()
singapore.name = 'Singapore'
singapore.rank = XmlElement()
singapore.rank.text = 4
singapore.year = XmlElement()
singapore.year.text = 2011
singapore.gdppc = XmlElement()
singapore.gdppc.text = 59900
singapore.neighbor = XmlElement()
singapore.neighbor[0].name = 'Malaysia'
singapore.neighbor[0].direction = 'N'

# Add the countries to ClassyXml
classy.country = liechtenstein
classy.country = singapore

# Save the XML file
classy.save_as('countries.xml')

Modifying an existing XML file

This will add a USA element to the countries.xml file illustrated above.

from classy_xml import ClassyXml, XmlElement

# Load the countries.xml file
classy = ClassyXml('countries.xml')

# Create a USA country element
usa = XmlElement(attributes={'name': 'USA'})
usa.rank = XmlElement(text=2)
usa.year = XmlElement(text=2012)
usa.gdppc = XmlElement(text=12345)
usa.neighbor = XmlElement(attributes={'name': 'Canada', 'direction': 'N'})
usa.neighbor = XmlElement(attributes={'name': 'Mexico', 'direction': 'S'})

# Add the USA country element the ClassyXml countries
classy.country = usa

# Save the XML file
classy.save()