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我需要一些幫助來找到一個教程或示例，以獲取列表理解並將其與來自csv的數據文件進行合併，並將所有這些轉換爲xml文件。從閱讀各種Python書籍& pdfs像ditp，IYOCGwP，learnpythonthe hardway ,, lxml tut，認爲python和在線搜索我大部分的方式在那裏，所以我認爲。我只需要推動將所有東西捆綁在一起。我基本上採取了一個excel電子表格，我將其導出爲csv文件。 csv包含我需要映射到xml文件的記錄行。我對Python很陌生，以爲我會用我的小項目來學習這門語言。列出的代碼並不漂亮，但有效。我可以讀取一個csv文件並將其轉儲到列表中。我可以合併3個列表並輸出結果列表，我可以讓我的程序吐出一個幾乎按我需要的格式佈置的骨架xml。我將列出一個小樣本的實際輸出，以及我正在嘗試使用此代碼下面的xml完成的內容。對不起，如果這太冗長了，這是我的第一篇文章。如何將python列表理解轉換爲xml
import csv, datetime, os
from lxml import etree
from ElementTree_pretty import prettify
f = os.path.getsize("SO.csv")
fh = "SO.csv"
rh = open(fh, "rU")
rows = 0
try:
rlist = csv.reader(rh)
reports = []
for row in rlist:
'''print row.items()'''
rowStripped = [x.strip(' ') for x in row]
reports.append(rowStripped)
rows +=1
except csv.Error, e:
sys.exit('file %s, line %d: %s' % (filename, reader.line_num, e))
finally:
rh.close()
root = etree.Element("co_ehs")
object = etree.SubElement(root, "object")
event = etree.SubElement(object, "event")
facets = etree.SubElement(event, "facets")
categories = etree.SubElement(facets, "categories")
instance = etree.SubElement(categories, "instance")
property = etree.SubElement(instance, "property")
facets = ['header','header','header','header','informational','header','informational']
categories = ['processing','processing','processing','processing','short_title','file_num','short_narrative']
property = ['REPORT ID','NEXT REPORT ID','initial-event-date','number','title','summary-docket-num','description-story']
print('----------Printing Reports from CSV Data----------')
print reports
print('---------END OF CSV DATA-------------')
print
mappings = zip(facets, categories, property)
print('----------Printing Mappings from the zip of facets, categories, property ----------')
print mappings
print('---------END OF List Comprehension-------------')
print
print('----------Printing the xml skeleton that will contain the mappings and the csv data ----------')
print(etree.tostring(root, xml_declaration=True, encoding='UTF-8', pretty_print=True))
print('---------END OF XML Skeleton-------------')
----My OUTPUT---
----------Printing Reports from CSV Data----------
[['1', '12-Dec-04', 'Vehicle Collision', '786689', 'No fault collision due to ice', '-1', '545671'], ['3', '15-Dec-04', 'OJT Injury', '87362', 'Paint fumes combusted causing 2nd degree burns', '4', '588456'], ['4', '17-Dec-04', 'OJT Injury', '87362', 'Paint fumes combusted causing 2nd degree burns', '-1', '58871'], ['1000', '12-Nov-05', 'Back Injury', '9854231', 'Lifting without a support device', '-1', '545671'], ['55555', '12-Jan-06', 'Foot Injury', '7936547', 'Office injury - heavy item dropped on foot', '-1', '545671']]
---------END OF CSV DATA-------------
----------Printing Mappings from the zip of facets, categories, property ----------
[('header', 'processing', 'REPORT ID'), ('header', 'processing', 'NEXT REPORT ID'), ('header', 'processing', 'initial-event-date'), ('header', 'processing', 'number'), ('informational', 'short_title', 'title'), ('header', 'file_num', 'summary-docket-num'), ('informational', 'short_narrative', 'description-story')]
---------END OF List Comprehension-------------
----------Printing the xml skeleton that will contain the mappings and the csv data ----------
<?xml version='1.0' encoding='UTF-8'?>
<co_ehs>
<object>
<event>
<facets>
<categories>
<instance>
<property/>
</instance>
</categories>
</facets>
</event>
</object>
</co_ehs>
---------END OF XML Skeleton-------------
----------CSV DATA------------------
C_ID,NEXT_C_ID,C_DATE,C_NUMBER,C_EVENT,C_DOCKETNUM,C_DESCRIPTION
1,-1,12-Dec-04,545671,Vehicle Collision,786689,"No fault collision due to ice"
3,4,15-Dec-04,588456,OJT Injury,87362,"Paint fumes combusted causing 2nd degree burns"
4,-1,17-Dec-04,58871,OJT Injury,87362,"Paint fumes combusted causing 2nd degree burns"
1000,-1,12-Nov-05,545671,Back Injury,9854231,"Lifting without a support device"
55555,-1,12-Jan-06,545671,Foot Injury,7936547,"Office injury - heavy item dropped on foot"
-----------What I want the xml output to look like----------------------
<?xml version="1.0" encoding="UTF-8"?>
<co_ehs xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="co_ehs.xsd">
<object id="3" object-type="ehs_report">
<event event-tag="0">
<facets name="header">
<categories name="processing">
<instance instance-tag="0">
<property name="REPORT ID" value="1"/>
<property name="NEXT REPORT ID" value="-1"/>
<property name="initial-event-date" value="12-Dec-04"/>
<property name="number" value="545671"/>
</instance>
</categories>
</facets>
<facets name="informational">
<categories name="short_title">
<instance-tag="0">
<property name="title" value="Vehicle Collision"/>
</instance>
</categories>
</facets>
<facets name="header">
<categories name="file_num">
<instance-tag="0">
<property name="summary-docket-num" value="786689"/>
</instance>
</categories>
</facets>
<facets name="informational">
<categories name="short_narrative">
<instance-tag="0">
<property name="description-story" value="No fault collision due to ice"/>
</instance>
</categories>
</facets>
</event>
</object>
</co_ehs>
什麼是對象的id屬性和事件的事件標籤屬性規則的左側最好的答案？我認爲事件標記只是一個計數器？ – 2011-02-22 18:27:44
@ ocaso-protal對象的id屬性是我理解的那個記錄的唯一id或整數。該對象類型的下一個記錄將等於或大於4.我相信事件標記以相似的方式使用，當它插入rdms時，爲每個事件標記賦予一個唯一的標識。我一直負責將csv文件和序列化到符合模式的xml中，以便最終xml將被饋送到rdms中。我想知道如何遍歷映射並在生成整個xml文檔之前將每個映射插入樹中。 – MWR 2011-02-23 13:12:53
@ ocaso-protal我將csv從字典轉換爲列表，因此我的目標是遍歷每個映射並生成相應的標記，並遍歷整個列表，即所有csv數據並將適當的數據項插入到標籤。每個數據項都有一個構面，類別，實例標籤和屬性。 – MWR 2011-02-23 13:29:30