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Why doesn the pretty_print option reformat my XML output?

April 26, 2017option output reformat XML

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Why doesn the pretty_print option reformat my XML output?

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Pretty printing (or formatting) an XML document means adding white space to the content. These modifications are harmless if they only impact elements in the document that do not carry (text) data. They corrupt your data if they impact elements that contain data. If lxml cannot distinguish between whitespace and data, it will not alter your data. Whitespace is therefore only added between nodes that do not contain data. This is always the case for trees constructed element-by-element, so no problems should be expected here.