为什么我的python进程会消耗这么多内存?

I'm working on a project that involves using python to read, process and write files that are sometimes as large as a few hundred megabytes. The program fails occasionally when I try to process some particularly large files. It does not say 'memory error', but I suspect that is the problem (in fact it gives no reason at all for failing'). I'm working on a project that involves using py