尝试使用Python解析XLS(XML)文件
问题描述
我从NetSuite ERP下载了一个"xls"文件。文件根目录是".xls"，但它实际上是一个XML文件。我有一个PANAS脚本，它将组合几个XLS或XLSX文件，但PANDA似乎无法处理这种奇怪的XLS/XML文件类型，所以我有另一个脚本试图解析XML数据并保存到XLS或XLSX。然而，下面的脚本似乎不起作用，因为它的结果是"None"。有谁能用我的样例代码、新代码或解决这个奇怪的XLS/XML解析问题的新方法为我指明正确的方向吗？
提前感谢！
XML示例代码：
<?xml version="1.0" encoding="utf-16"?>
<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">
<DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
<Author>NetSuite Reports</Author>
<LastAuthor>NetSuite Reports</LastAuthor>
<Company>NetSuite</Company>
</DocumentProperties>
<Styles>
<Style ss:ID="company">
<Alignment ss:Horizontal="Center" />
<Font ss:Size="12" ss:Bold="1" />
</Style>
<Style ss:ID="subcompany">
<Alignment ss:Horizontal="Center" />
<Font ss:Size="14" ss:Bold="1" />
</Style>
<Style ss:ID="error">
<Alignment ss:Horizontal="Center" />
<Interior ss:Color="#f0d0d0" ss:Pattern="Solid" />
<Font ss:Bold="1" />
</Style>
<Style ss:ID="header_l">
<Alignment ss:Horizontal="Left" />
<Font ss:Size="7" ss:Bold="1" />
<Interior ss:Color="#d0d0d0" ss:Pattern="Solid" />
</Style>
<Style ss:ID="header_r">
<Alignment ss:Horizontal="Right" />
<Font ss:Size="7" ss:Bold="1" />
<Interior ss:Color="#d0d0d0" ss:Pattern="Solid" />
</Style>
<Style ss:ID="header_c">
<Alignment ss:Horizontal="Center" />
<Font ss:Size="7" ss:Bold="1" />
<Interior ss:Color="#d0d0d0" ss:Pattern="Solid" />
</Style>
<Style ss:ID="scheckbox">
<Alignment ss:Vertical="Center" ss:Horizontal="Center" />
</Style>
<Style ss:ID="Default" ss:Name="Normal">
<Alignment ss:Vertical="Bottom" />
<Borders />
<Font ss:FontName="Arial" ss:Size="8" />
<Interior />
<NumberFormat />
<Protection />
</Style>
<Style ss:ID="s53">
<Alignment ss:Vertical="Center" ss:Horizontal="Left" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders>
<Border ss:Position="Top" ss:LineStyle="Dash" ss:Weight="1" ss:Color="#cccccc" />
</Borders>
</Style>
<Style ss:ID="s52">
<Alignment ss:Horizontal="Left" ss:Indent="1" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="0" ss:Italic="0" />
<Borders />
</Style>
<Style ss:ID="s51">
<Alignment ss:Vertical="Center" ss:Horizontal="Right" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="0" ss:Italic="0" />
<NumberFormat ss:Format=""€"#,##0.00" />
<Borders />
</Style>
<Style ss:ID="s50">
<Alignment ss:Vertical="Center" ss:Horizontal="Left" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders />
</Style>
<Style ss:ID="s58">
<Alignment ss:Horizontal="Left" ss:Indent="2" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders>
<Border ss:Position="Top" ss:LineStyle="Dash" ss:Weight="1" ss:Color="#cccccc" />
</Borders>
</Style>
<Style ss:ID="s54">
<Alignment ss:Vertical="Center" ss:Horizontal="Right" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<NumberFormat ss:Format=""€"#,##0.00" />
<Borders>
<Border ss:Position="Top" ss:LineStyle="Dash" ss:Weight="1" ss:Color="#cccccc" />
</Borders>
</Style>
<Style ss:ID="s59">
<Alignment ss:Horizontal="Left" ss:Indent="1" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders>
<Border ss:Position="Top" ss:LineStyle="Dash" ss:Weight="1" ss:Color="#cccccc" />
</Borders>
</Style>
<Style ss:ID="s56">
<Alignment ss:Horizontal="Left" ss:Indent="2" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders />
</Style>
<Style ss:ID="s57">
<Alignment ss:Horizontal="Left" ss:Indent="3" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="0" ss:Italic="0" />
<Borders />
</Style>
<Style ss:ID="s55">
<Alignment ss:Horizontal="Left" ss:Indent="1" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders />
</Style>
<Style ss:ID="s60">
<Alignment ss:Vertical="Center" ss:Horizontal="Left" />
<Font ss:FontName="Arial" ss:Size="8" ss:Color="#000000" ss:Bold="1" ss:Italic="0" />
<Borders>
<Border ss:Position="Top" ss:LineStyle="Dash" ss:Weight="1" ss:Color="#cccccc" />
</Borders>
</Style>
</Styles>
<Worksheet ss:Name="TrialBalance">
<Table>
<Row>
<Cell ss:StyleID="company" ss:MergeAcross="1">
<Data ss:Type="String">Parent Company</Data>
</Cell>
</Row>
<Row>
<Cell ss:StyleID="company" ss:MergeAcross="1">
<Data ss:Type="String">Company Holdings Inc. : Company A B.V.</Data>
</Cell>
</Row>
<Row>
<Cell ss:StyleID="subcompany" ss:MergeAcross="1">
<Data ss:Type="String">Trial Balance</Data>
</Cell>
</Row>
<Row>
<Cell ss:StyleID="subcompany" ss:MergeAcross="1">
<Data ss:Type="String">End of Feb 2020</Data>
</Cell>
</Row>
<Row>
<Cell ss:StyleID="subcompany" ss:MergeAcross="1">
<Data ss:Type="String" />
</Cell>
</Row>
<Row>
<Cell ss:StyleID="subcompany" ss:MergeAcross="1">
<Data ss:Type="String" />
</Cell>
</Row>
<Row>
<Cell ss:StyleID="header_l">
<Data ss:Type="String">Account</Data>
</Cell>
<Cell ss:StyleID="header_r" ss:MergeDown="0" ss:Index="2">
<Data ss:Type="String">Total</Data>
</Cell>
</Row>
<Row>
<Cell ss:StyleID="s50">
<Data ss:Type="String">10000 - CASH & CASH EQUIVALENTS</Data>
</Cell>
<Cell ss:StyleID="s51" />
</Row>
<Row>
<Cell ss:StyleID="s52">
<Data ss:Type="String">10101 - Bank - 9999 - Company A - EUR</Data>
</Cell>
<Cell ss:StyleID="s51">
<Data ss:Type="Number">1234567.01</Data>
</Cell>
</Row>
<Row>
<Cell ss:StyleID="s53">
<Data ss:Type="String">Total - 10000 - CASH & CASH EQUIVALENTS</Data>
</Cell>
<Cell ss:Formula="SUM(R[-1]C)" ss:StyleID="s54">
<Data ss:Type="Number">1234567.01</Data>
</Cell>
</Row>
</Table>
</Worksheet>
</Workbook>
将XML解析为XLS的Python代码：
import pandas as pd
import xml.etree.cElementTree as ET
tree = ET.parse(r"C:UsersNAMEDocumentsootfolderexamplefile.xls")
root = tree.getroot()
def getvalueofnode(node):
""" return node text or None """
return node.text if node is not None else None
def main():
""" main """
parsed_xml = tree
dfcols = ['account', 'total']
df_xml = pd.DataFrame(columns=dfcols)
for node in parsed_xml.getroot():
account = node.attrib.get('Type="String"')
total = node.find('Type="Number"')
df_xml = df_xml.append(
pd.Series([account, getvalueofnode(total)], index=dfcols),
ignore_index=True)
print(df_xml)
main()
Python解析XML文件结果：
account total
0 None None
解决方案
避免通过追加系列甚至DataFrame等对象来生成数据框。相反，构建一个要绑定到DataFrame的词典列表。此外，因为您的XML有一个默认的命名空间，所以您必须分配前缀来解析该命名空间下的任何元素
import pandas as pd
import xml.etree.cElementTree as ET
ns = {"doc": "urn:schemas-microsoft-com:office:spreadsheet"}
tree = ET.parse(r"C:PathToInput.xml")
root = tree.getroot()
def getvalueofnode(node):
""" return node text or None """
return node.text if node is not None else None
def main():
""" main """
parsed_xml = tree
data = []
for i, node in enumerate(root.findall('.//doc:Row', ns)):
if i > 6:
data.append({'account': getvalueofnode(node.find('doc:Cell[1]/doc:Data', ns)),
'total': getvalueofnode(node.find('doc:Cell[2]/doc:Data', ns))})
return(pd.DataFrame(data))
output_df = main()
print(output_df)
# account total
# 0 10000 - CASH & CASH EQUIVALENTS None
# 1 10101 - Bank - 9999 - Company A - EUR 1234567.01
# 2 Total - 10000 - CASH & CASH EQUIVALENTS 1234567.01
或者，使用win32com(仅适用于Windows用户)将Excel样式的XML保存为xlsx使用Workbook.SaveAs方法(仅适用于Windows用户)，并使用pandas.read_excel跳过相应的行进行读取。
import win32com.client
import pandas as pd
# SAVE EXCEL FILE
try:
xlApp = win32com.client.Dispatch("Excel.Application")
xlWbk = xlApp.Workbooks.Open(r"C:PathToInput.xml")
xlWbk.SaveAs(r"C:PathToOutput.xlsx", 51)
xlWbk.Close(True)
xlApp.Quit()
except Exception as e:
print(e)
finally:
xlWbk = None; xlApp = None
del xlWbk; del xlApp
# READ EXCEL FILE
output_df = pd.read_excel(r"C:PathToOutput.xlsx", skiprows = 6)
print(output_df)
# Account Total
# 0 10000 - CASH & CASH EQUIVALENTS NaN
# 1 10101 - Bank - 9999 - Company A - EUR 1234567.01
# 2 Total - 10000 - CASH & CASH EQUIVALENTS 1234567.01
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