fopen from <stdio.h> will return NULL

[linrongbin16]

Hi, I'm trying to open a file in pybind11 module and write something into it.

But FILE *fp = fopen("log/module_cc.log", "w"); will return NULL.

Would you please help me with that ?

Actually I'm trying to use spdlog for logging in pybind11 module, and it seems not work as well.

[cielavenir]

have you created "log" dir first?

[linrongbin16]

Turns out it's my mistake. I have already fix it.