python - Convert structure large XML file To CSV without using tag names -


iam trying convert large xml file csv format , below code , sample file ,sample file (part of xml file ) 

<postaladdress>     <id>5464443597076195439</id>     <adduserid>system_user</adduserid>     <adddate>2013-01-05t18:08:42-06:00</adddate>     <lastpersistencetransactionuserid>system_user</lastpersistencetransactionuserid>     <lastpersistencetransactiondate>2013-07-11t08:21:34-05:00</lastpersistencetransactiondate>     <lastpersistencetransactiontype tc="2"/>     <externalreferenceid>3200723</externalreferenceid>     <schemaversion>2</schemaversion>     <type tc="1"/>     <usage tc="2"/>     <valid>true</valid>     <overridable>true</overridable>     <preferred>false</preferred>     <line1>4849 ronson ct</line1>     <line2>ste 208</line2>     <city>san diego</city>     <state tc="6"/>     <postalcode>92111</postalcode>     <country tc="1"/> </postaladdress>

below code

import codecs import xml.etree.elementtree et import sys class gokul:      def __init__(self, input_file, output_file, encoding='utf-8'):          self.output_buffer = []         self.output = none        self.context = et.iterparse(input_file, bs4 import beautifulsoup=("start", "end"))         try:             self.output = codecs.open(output_file, "w", encoding=encoding)         except:             print("failed open output file")             raise       def convert(self, tag="item", delimiter=",", ignore=[], noheader=false,                 limit=-1, buffer_size=1000):         event, root = next(self.context)          items = []         header_line = []         field_name = ''          tagged = false         started = false         n = 0          event, elem in self.context:              should_write = elem.tag != tag , started , elem.tag not in ignore             should_tag = not tagged , should_write , not noheader             i=0               if event == 'start':                 if elem.tag == tag , not started:                     started = true                 elif should_tag:                     field_name = '_'.join((field_name, elem.tag)) if field_name else elem.tag              else:                 if should_write:                     if should_tag:                         header_line.append(field_name)                           field_name = field_name.rpartition('_' + elem.tag)[0]                     items.append('' if elem.text none else elem.text.strip().replace('"', r'""'))                  elif elem.tag == tag , len(items) > 0:                      if header_line , not tagged:                         self.output.write(delimiter.join(header_line) + '\n')                     tagged = true                     self.output_buffer.append(r'"' + (r'"' + delimiter + r'"').join(items) + r'"')                     items = []                     n += 1                     if n == limit:                         break                     if len(self.output_buffer) > buffer_size:                         self._write_buffer()                  elem.clear()            self._write_buffer()           self.output.close()          return n     def _write_buffer(self):         """write records buffer output file"""          self.output.write('\n'.join(self.output_buffer) + '\n')         self.output_buffer = []           converter = gokul(sys.argv[1], sys.argv[2], encoding="utf-8")          converter.convert(tag=sys.argv[3])


Comments

Post a Comment

Popular posts from this blog

java - pagination of xlsx file to XSSFworkbook using apache POI -

right in code, reading xlsx file, xssfworkbook, , writing database. but, when size of xlsx file increases, causes outofmemory error. can not increase server size, or divide xlsx file pieces. tried loading workbook using file (instead of inputstream), didn't either. i looking way read 10k rows @ time (instead of entire file @ once) , iteratively write workbook , database. is there way apache poi? poi contains called "eventmodel" designed purpose. it's mentioned in faq : the ss eventmodel package api reading excel files without loading whole spreadsheet memory. require more knowledge on part of user, reduces memory consumption more tenfold. based on awt event model in combination sax. if need read-only access, best way it. however, may want double check first if issue somewhere else. check out this item : i think poi using memory! can do? 1 comes quite lot, reason isn't might think. so, first thing check - what's source of prob...
Read more

Unlimited choices in BASH case statement -

consider simple bash snippet: case $option in 1) image=${options[0]%.tar} ;; 2) image=${options[1]%.tar} ;; 3) image=${options[2]%.tar} ;; 4) image=${options[3]%.tar} ;; *) echo "invalid option" exit 1 esac in real script numbers goes 30. makes pretty long. can somehow specify cases variable? something this: case $option in $i) image=${options[$(($i-1))]%.tar} any pointer appreciated. you can match against multiple patterns in single clause: case $option in 1|2|3: echo "$option one, 2 or three" ;; esac if still typing you, can use simple pattern matching: case $option in # following matches # - single-digit numbers 0-9 # - two-digit numbers starting either 1 or 2 # - number 30 [0-9]|[12][0-9]|30) image=${options[$(($option-1))]%.tar} ;; *) echo "invalid option" 1>&2 exit 1 esac
Read more

apache - How do I stop my index.php being run twice for every user -

we've got webapp initial html served using apache , php. i noticed index.php being run twice every request. seems caused / effected rewrite rules in our .htaccess - rewritecond %{http_host} ^(www\.|hotels\.)ourdomain\.com$ [nc,or] rewritecond %{server_name} ^(www\.|hotels\.)ourdomain\.com$ [nc] rewriterule (.*) http://ourdomain.com/$1 [r=301] rewriterule ^hotels/([^/]+)/?\??(.*)$ ?d=$1&$2 [qsa] the final rule moving parameter url path query string. i.e. http://ourdomain.com/hotels/vegas?someparam=1 becomes http://ourdomain.com?d=vegas&someparam=1 if go directly query string version index.php run once. if use url redirected, index.php run twice (i'm checking adding error_log('end of index.php') file). so example going http://ourdomain.com/hotels/paris hits file twice http://ourdomain.com?d=paris hits once. i've seen this question , had @ blog mentioned , , can't find empty string url's (i've tried using yslow process). ...
Read more