Odtnhj

I am attempting to run code from one program (program1) via the usage of a subproccess.popen call. Program 2(the one being called) does not display logger statements. In the example code below program1 calls program2 with logging setup for each code.

program1.py

import subprocess
import logging
import sys

def configure_logging(name):
 logger = logging.getLogger(name)
 logger.setLevel(logging.DEBUG)
 formatter = logging.Formatter("%(asctime)s:%(name)s:%(message)s")
 stream_handler = logging.StreamHandler()
 stream_handler.setFormatter(formatter)
 logger.addHandler(stream_handler)
 return logger

logger = configure_logging(__name__) 
python_path = "Path/to/specific/pythonexe"
py_path = "Path/to/program2.py" 
cmd = " ".format(python_path,py_path) 
logger.info("Cmd: ".format(cmd)) 
cmd = cmd.split() 
proc = subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE,universal_newlines=True)

program2.py

import logging
def logstuff(name):
 logger = logging.getLogger(name)
 logger.setLevel(logging.DEBUG)
 formatter = logging.Formatter("%(asctime)s:%(name)s:%(message)s")
 stream_handler = logging.StreamHandler()
 stream_handler.setFormatter(formatter)
 logger.addHandler(stream_handler)
 return logger

def main():
 logger.info("hi")
 print("hi2")

if __name__ == "__main__": 
 logger = logstuff(__name__)
 main()

Using the above setup program1 calls program2 but the logger.info statement is not printed out only the print() statement is.

I can't import program2 as it relies on a specific python version encased in an anaconda environment.

My desired output would be to have the logger.info and any subsequent logger calls printed to terminal so how would I go about achieving this?

I believe you messed up with the logger setup. Also the subprocess.Popen with stdout PIPE and such didn't work for me. Here's what I got working locally, hope it helps.

program1.py

import logging
import subprocess

logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s:%(name)s:%(message)s')
stream_handler = logging.StreamHandler()
stream_handler.setFormatter(formatter)
logger.addHandler(stream_handler)

python_path = 'python'
py_path = 'program2.py'
cmd = ' '.format(python_path, py_path)
logger.info('Cmd: '.format(cmd))
cmd = cmd.split()
subprocess.call(cmd)

program2.py

import logging
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s:%(name)s:%(message)s')
stream_handler = logging.StreamHandler()
stream_handler.setFormatter(formatter)
logger.addHandler(stream_handler)


def main():
 logger.info('hi program2 here')

if __name__ == '__main__':
 main()

Output:

$ python program1.py 
2018-11-14 15:38:53,905:__main__:Cmd: python program2.py
2018-11-14 15:38:53,917:__main__:hi program2 here