2

これが私のコードです：

#!/usr/bin/python

import psycopg2
import sys
from lxml import etree
def main():

    #Define our connection string
    conn_string = ("host=host dbname=lal user=user password=pass")


    # get a connection, if a connect cannot be made an exception will be raised here
    conn = psycopg2.connect(conn_string)

    # conn.cursor will return a cursor object
    cursor = conn.cursor()
    print "Connected!\n"

    # Open file


    parser = etree.parse("XML/epg.xml")
    for row in parser:
        print row

        postgres = ('INSERT INTO epg_live (channel_id, program, start, duration) VALUES (%s, %s, %s, %s)', (row, row, row, row))
        cursor.execute(parser,postgres)
        cursor.commit()
        print "Gotovo!"

if __name__ == "__main__":
    main()

XML ファイルを解析して文字列に変換し、posgresql のテーブルに挿入する方法を教えてください。スクリプトを実行すると、次のようなエラーが発生します。

File "./xml.py", line 32, in <module>
    main()
  File "./xml.py", line 22, in main
    parser = etree.parse("XML/epg.xml")
  File "lxml.etree.pyx", line 2953, in lxml.etree.parse (src/lxml/lxml.etree.c:56204)
  File "parser.pxi", line 1533, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:82287)
  File "parser.pxi", line 1562, in lxml.etree._parseDocumentFromURL (src/lxml/lxml.etree.c:82580)
  File "parser.pxi", line 1462, in lxml.etree._parseDocFromFile (src/lxml/lxml.etree.c:81619)
  File "parser.pxi", line 1002, in lxml.etree._BaseParser._parseDocFromFile (src/lxml/lxml.etree.c:78528)
  File "parser.pxi", line 569, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:74472)
  File "parser.pxi", line 650, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:75363)
  File "parser.pxi", line 590, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:74696)
lxml.etree.XMLSyntaxError: Opening and ending tag mismatch: epg line 2 and item, line 26, column 10

私の XML は問題ありません。次のようになります。

<item><program>        Program 3   
</program><start>            Start   20130918 15:00:00 
</start><duration>            Duration   04:30:00 
</duration><title>                  Title Nujna seja Odbora za finance in monetarno politiko   
</title></item>

Python の解決策を教えてください。この投稿を読んでくれた thx の皆さん。

4

1 に答える 1

2

xml をパラメーターに読み込み、次のように PostgreSQL に送信できます。

root = etree.parse("XML/epg.xml")
for i in root.findall("item"):
    p = [i.find(n).text for n in ("program", "start", "duration")]
    # now you get list with values of parameters

    postgres = ('INSERT INTO epg_live (program, start, duration) VALUES (%s, %s, %s)', p)
    cursor.execute(parser,postgres)
    cursor.commit()

channel_idパラメータを取得する場所がわからない

于 2013-09-20T08:55:01.657 に答える