使用python向XML添加namespace/modify标记

Question

我尝试使用python向XML文档添加名称空间（修改标记） 我想出了一个简单的解决办法

我的意见

<?xml version="1.0" encoding="UTF-8"?>
<assData version="1.0" xsi:schemaLocation="http://xmlns.kama.com/it/eng/sgatInternal/assDataInternal/v1 /kama/it/eng/sgatInternal/assDataInternal/v1/assDataInternal-1_0.xsd" xmlns="http://xmlns.kama.com/it/eng/sgatInternal/assDataInternal/v1" xmlns:ext="http://xmlns.kama.com/it/eng/sgat/assData/v1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <Header>
        <su>suName</su>
        <PlayLocation>PlayLocation</PlayLocation>
        <fat>fatValue</fat>
        <Product kamaProductID="4xxx9-DOG325-Bare" suProductID="4x9 C325 BS" family="9x9" project="sgat" technology="ST1"/>
        <dog type="ENG" assdogID="assdogID" totalSNRCount="100"/>
        <Play step="PlayStep" type="Screen"/>
        <ProcessFlow>processFlow</ProcessFlow>
        <Recipe name="recipeName" type="PRD" version="1.00" id="recipeID"/>
        <PlayerSpecVersion>4.0</PlayerSpecVersion>
        <PlayDateTime start="2013-10-23T03:36:15+08:00" end="2013-10-23T03:36:15+08:00" timeZone="Europe/Rome"/>
        <ArrayType>1</ArrayType>
        <FirmWAR version="3.4"/>
    </Header>
    <assPlayReport>
        <RecSpec>
            <Bins>
                <Bin name="A" type="HB" number="1" pass="true"/>
                <Bin name="A-" type="HB" number="2" pass="true"/>
                <Bin name="B" type="HB" number="3" pass="false"/>
                <Bin name="C" type="HB" number="4" pass="false"/>
                <Bin name="F" type="HB" number="5" pass="false"/>
            </Bins>
            <Plays>
                <Play upperLimit="3.18" name="Play1" unit="mm" lowerLimit="3.27"/>
                <Play name="Play2"/>
                <Play upperLimit="22.42" name="Play2=3" unit="mm" lowerLimit="23.10"/>
            </Plays>
        </RecSpec>
        <Data>
            <SNRs>
                <SNR id="firstSNR" suSerialID="suSerialID" rework="0" startPlayDateTime="2013-10-23T03:36:15+08:00" endPlayDateTime="2013-10-23T03:36:15+08:00" fatdogID="fatdogID" fatPlateID="G" fatSubplateID="55" compositeSerialID="fatValue_fatdogIDG55_firstSNR" compositeSubplateID="fatValueG55" sourcedogID="fatdogID_S">
                    <Player DumpStop="DumpStop" targetActuatorID="targetActuatorID" operator="operator"/>
                    <Temperature unit="C">34.5</Temperature>
                    <Bread siteID="BreadSiteID" deviceID="BreadDeviceID" serialID="BreadSerialID" chipID="43" softWARVersion="2.1" arrayType="12" initializationFileVersion="1.0" hardWARID="BreadHardWARID" id="BreadID" firmWARVersion="3" isParallelExecution="false"/>
                    <Bins>
                        <FinalBin type="HB">4</FinalBin>
                        <Bin PlayName="FUNC" type="SB1">1</Bin>
                        <Bin PlayName="IMG" type="SB1">1</Bin>
                        <Bin PlayName="TUN" type="SB1">4</Bin>
                        <Bin PlayName="FUNC_FP" type="SB2">1</Bin>
                        <Bin PlayName="FUNC_PWR" type="SB2">1</Bin>
                        <Bin PlayName="IMG_LO" type="SB2">1</Bin>
                        <Bin PlayName="IMG_PROC" type="SB2">1</Bin>
                        <Bin PlayName="TUN_SENS" type="SB2">4</Bin>
                    </Bins>
                    <Plays>
                        <Play name="Play1">
                            <FReport>true</FReport>
                            <PReport>
                                <Result>3.19</Result>
                            </PReport>
                        </Play>
                        <Play name="Play2">
                            <FReport>false</FReport>
                            <PReport>
                                <Result>string result</Result>
                            </PReport>
                        </Play>
                    </Plays>
                </SNR>
                <SNR id="secondSNR" suSerialID="suSerialID" rework="0" startPlayDateTime="2013-10-23T03:37:15+08:00" endPlayDateTime="2013-10-23T03:38:15+08:00" fatdogID="fatdogID" fatPlateID="Q" fatSubplateID="12" compositeSerialID="fatValue_fatdogIDQ12_secondSNR" compositeSubplateID="fatValueQ12" sourcedogID="fatdogID_S">
                    <Player DumpStop="DumpStop" targetActuatorID="targetActuatorID" operator="operator"/>
                    <Temperature unit="F">34.5</Temperature>
                    <Bread siteID="BreadSiteID" deviceID="BreadDeviceID" serialID="BreadSerialID" chipID="43" softWARVersion="2.1" arrayType="12" initializationFileVersion="1.0" hardWARID="BreadHardWARID" id="BreadID" firmWARVersion="3" isParallelExecution="false"/>
                    <Bins>
                        <FinalBin type="HB">3</FinalBin>
                        <Bin PlayName="FUNC" type="SB1">1</Bin>
                        <Bin PlayName="IMG" type="SB1">3</Bin>
                        <Bin PlayName="FUNC_FP" type="SB2">1</Bin>
                        <Bin PlayName="FUNC_PWR" type="SB2">1</Bin>
                        <Bin PlayName="IMG_LO" type="SB2">3</Bin>
                        <Bin PlayName="IMG_PROC" type="SB2">3</Bin>
                    </Bins>
                    <Plays>
                        <Play name="Play1">
                            <FReport>true</FReport>
                            <PReport>
                                <Result>3.19</Result>
                            </PReport>
                        </Play>
                        <Play name="Play2">
                            <FReport>false</FReport>
                            <PReport>
                                <Result>string result</Result>
                            </PReport>
                        </Play>
                    </Plays>
                </SNR>
            </SNRs>
        </Data>
    </assPlayReport>
</assData>

我的代码灵感来自Search and replace a line in a file in Python

from tempfile import mkstemp
from shutil import move
from os import remove, close

def replace(file_path, pattern, subst):
    #Create temp file
    fh, abs_path = mkstemp()
    with open(abs_path,'w') as new_file:
        with open(file_path) as old_file:
            for line in old_file:
                new_file.write(line.replace(pattern, subst))
    close(fh)
    #Remove original file
    remove(file_path)
    #Move new file
    move(abs_path, file_path)


replace("c:\\temp\\stack_add_ext_input.xml","<Bins","<ext:Bins")  
replace("c:\\temp\\stack_add_ext_input.xml","/Bins>","/ext:Bins>") 
#wont work with this method
#replace("c:\\temp\\stack_add_ext_input.xml","<Bin","<ext:Bin") 
#replace("c:\\temp\\stack_add_ext_input.xml","/Bin>","/ext:Bin>") 
#wont work with this method
replace("c:\\temp\\stack_add_ext_input.xml","<Plays","<ext:Plays")  
replace("c:\\temp\\stack_add_ext_input.xml","/Plays>","/ext:Plays>") 

但是，这不起作用，因为我有Bin>；，Plays，Play标签 有没有更简单的方法？ 我尝试在python中使用与XML相关的包，但是我找不到使用现有的包装方法很容易。。。你知道吗

我正在考虑实现一个状态机，以便在读取文件行时跟踪状态。 但似乎杀伤力太大了。。。。你知道吗

谢谢你的帮助