python XML解析器最小内存使用情况

Question

I recently use minidom to parse some xml files.

The funny thing is it takes me 8G memroy to read a 56MB file, which is relative flat, ie, most of the nodes are in the same level.

Why is this true?

Answer 1

You are not the only one to face this .

From my humble opinion, the main reason minidom based program consume lot of memory is due to the fact lot of minidom functions are implemented recursively (recursion and memory usage are generally not good friends).

I advice you to opt for other Python XML parser libraries which are faster (notably lxml ).