[SOLVED] When Google Logging Library is called by Python, how can we define the location of the log file?

When Google Logging Library is called by Python, how can we define the location of the log file?

I am now calling a C++ library in Python with the help of CFFI. This C++ library uses Google Logging Library for logging message. I know that when I set up a C++ application that calls the library, I can easily control where the log file is located:

 #include <glog/logging.h>

   int main(int argc, char* argv[]) {
     // Initialize Google's logging library.
     google::InitGoogleLogging(argv[0]);

     // ...
     LOG(INFO) << "Found " << num_cookies << " cookies";
   }

However, now I am calling it from the Python codes. Then my question is how can I set up the log file so that the log information in the C++ library can be written to the defined log file. By the way, I have the source code of the C++ library, and I can compile it myself.

Solution

According to the docs, setting environment variable GLOG_log_dir should work:

GLOG_log_dir='/my/log/dir/' python my_code.py

According to the code, setting environment variable GOOGLE_LOG_DIR may also work.