Unable to write to log file if python flask app running under apache2 mod_wsgi

Question

When I run the app.py use command line no issue, the log file will be generated and logged.

but when the py file run by apache wsgi

no log comes out

file_log_path = '/var/log/apache2/'
file_log = 'python_app_log.txt'
file_log_full = file_log_path + file_log

logging.basicConfig(filename = file_log_full, level=logging.INFO,
                    format="%(asctime)s|%(levelname)s|%(funcName)s| %(message)s")

logging.info('Finished init path')

#----- Main-Fucntions ------------------------------------
#-- Set up time ---
logging.info('Main-Fucntions Init...')
tz_utc = tz.tzoffset('UTC Time', 0 * 60)
tz_sql = tz.tzoffset('SQL Server Time', Get_MySQL_TimeZone() * 60)

logging.info(tz_utc)
logging.info('MySQL Server Time zone is ' + tz_sql._name)



#----- Main Process Code must in above--------------------------------------
if __name__ == "__main__":
    app.run(host='0.0.0.0')
    #app.run(host='0.0.0.0',debug=True)
    #app.run(host= '0.0.0.0', port = 30443 ,debug = True)
    logging.info('APP RUN Event')

Answer 1

等待大神答复