Python XML编辑-我的for循环提早结束

Question

请原谅我，因为我是编码的新手。我有一个xml文件，其中包含某种格式的食谱（如下）。我想浏览标题，然后选择在创建新XML之前删除“食谱”还是保留它。如果我在第一个记录上按“ a”，它将删除该第一个记录，但没有为我提供第二个选项。如果我没有在第一条记录上按“ a”，第二条记录就会出现，并且我可以选择删除它。

删除记录后，似乎正在跳过记录。希望这是有道理的。

XML格式：

 <recipes>
    <recipe>
        <title> Chicken and apple sandwiches with poppy seed mayo </title>
        <nutrition Cholesterol="12m" calories="132" carbohydrate="14.1" fat="2.3" fibre="1.5" protein="5.5" saturated_fat="1.5" sodium="187m" sugar="1.6"/>
        <description>Finger sandwiches are an essential part of high tea. Each one should be about two fingers thick, so they can be eaten in two or three bites.</description>
        <taxonomy name="category"><term> High tea recipes</term></taxonomy>
        <servings quantity="24" unit="People"/><prepTime quantity="30" unit="minutes"/><cookTime quantity="" unit="minutes"/>
        <ingredients>
            <ingredient name="1/2 large green apple, finely chopped"/>
            <ingredient name="1 tablespoon lemon juice"/>
            <ingredient name="2 1/2 cups chopped barbecue chicken breast"/>
            <ingredient name="2 celery sticks, finely chopped"/>
            <ingredient name="2 1/2 tablespoons chopped fresh chives"/>
            <ingredient name="125g (1/2 cup) whole egg mayonnaise"/>
            <ingredient name="1 tablespoon poppy seeds"/>
            <ingredient name="1 1/2 teaspoons Dijon mustard"/>
            <ingredient name="16 slices soft light rye bread"/>
            <ingredient name="2 tablespoons butter, at room temperature"/>
            <ingredient name="Baby herbs, to decorate (optional)"/>
        </ingredients>
        <instructions>
            <instruction> Combine the apple and lemon juice in a bowl. Toss to coat. Add the chicken, celery, chives, mayonnaise, poppy seeds and mustard. Season. Mix until well combined. </instruction>
            <instruction> Arrange half the bread slices on a work surface. Spread with the butter. Spread with the chicken mixture. Sandwich together with remaining bread slices. Use a serrated knife to remove the crusts from each sandwich.Cut each sandwich lengthways into thirds and decorate with baby herbs, if using. </instruction>
        </instructions>
    </recipe>

       <recipe>
            <title> Title 2 </title>
            <nutrition Cholesterol="12m" calories="132" carbohydrate="14.1" fat="2.3" fibre="1.5" protein="5.5" saturated_fat="1.5" sodium="187m" sugar="1.6"/>
            <description>Finger sandwiches are an essential part of high tea. Each one should be about two fingers thick, so they can be eaten in two or three bites.</description>
            <taxonomy name="category"><term> High tea recipes</term></taxonomy>
            <servings quantity="24" unit="People"/><prepTime quantity="30" unit="minutes"/><cookTime quantity="" unit="minutes"/>
            <ingredients>
                <ingredient name="1/2 large green apple, finely chopped"/>
                <ingredient name="1 tablespoon lemon juice"/>
                <ingredient name="2 1/2 cups chopped barbecue chicken breast"/>
                <ingredient name="2 celery sticks, finely chopped"/>
                <ingredient name="2 1/2 tablespoons chopped fresh chives"/>
                <ingredient name="125g (1/2 cup) whole egg mayonnaise"/>
                <ingredient name="1 tablespoon poppy seeds"/>
                <ingredient name="1 1/2 teaspoons Dijon mustard"/>
                <ingredient name="16 slices soft light rye bread"/>
                <ingredient name="2 tablespoons butter, at room temperature"/>
                <ingredient name="Baby herbs, to decorate (optional)"/>
            </ingredients>
            <instructions>
                <instruction> Combine the apple and lemon juice in a bowl. Toss to coat. Add the chicken, celery, chives, mayonnaise, poppy seeds and mustard. Season. Mix until well combined. </instruction>
                <instruction> Arrange half the bread slices on a work surface. Spread with the butter. Spread with the chicken mixture. Sandwich together with remaining bread slices. Use a serrated knife to remove the crusts from each sandwich.Cut each sandwich lengthways into thirds and decorate with baby herbs, if using. </instruction>
            </instructions>
        </recipe>
    </recipes>

python代码：

import xml.etree.cElementTree as ET

tree = ET.ElementTree(file='test.xml')
root = tree.getroot()

for child in root:
    for title in child:
        if (title.tag=="title"):
            print title.text
            x=raw_input()
            if (x=="a"):
                root.remove(child)
                print("deleted: "+ title.text)


tree.write('output.xml')
print "complete"

有人可以告诉我我做错了什么吗？预先感谢