Chapter 6->6.1-Parsing XML with lxml.objectify

[sachin-qgem]

• parsed = objectify.parse(f) raises an error:

"Argument missing for parameter "parser"
so it needs to be passed the parser argument.

• for elt in root.INDICATOR: raises the error:

for elt in root.INDICATOR:
^^^^^^^^^^^^^^
File "src/lxml/objectify.pyx", line 221, in lxml.objectify.ObjectifiedElement.getattr
File "src/lxml/objectify.pyx", line 440, in lxml.objectify._lookupChildOrRaise

XML file code used below:

<INDICATOR>
  <INDICATOR_SEQ>373889</INDICATOR_SEQ>
  <PARENT_SEQ></PARENT_SEQ>
  <AGENCY_NAME>Metro-North Railroad</AGENCY_NAME>
  <INDICATOR_NAME>Escalator Availability</INDICATOR_NAME>
  <DESCRIPTION>Percent of the time that escalators are operational
  systemwide. The availability rate is based on physical observations 
  performed
  the morning of regular business days only. This is a new indicator 
  the agency
  began reporting in 2009.</DESCRIPTION>
  <PERIOD_YEAR>2011</PERIOD_YEAR>
  <PERIOD_MONTH>12</PERIOD_MONTH>
  <CATEGORY>Service Indicators</CATEGORY>
  <FREQUENCY>M</FREQUENCY>
  <DESIRED_CHANGE>U</DESIRED_CHANGE>
  <INDICATOR_UNIT>%</INDICATOR_UNIT>
  <DECIMAL_PLACES>1</DECIMAL_PLACES>
  <YTD_TARGET>97.00</YTD_TARGET>
  <YTD_ACTUAL></YTD_ACTUAL>
  <MONTHLY_TARGET>97.00</MONTHLY_TARGET>
  <MONTHLY_ACTUAL></MONTHLY_ACTUAL>
</INDICATOR>