1. To read an additional startup file from the current directory, the following example command shows how to code it in the global startup file (read_startup.py):

        if os.path.isfile('.pythonrc.py'): exec(open('.pythonrc.py').read()

2. While the startup file is only looked at for interactive mode, it can be referenced within a script. startup_script.py shows how to do this:

      import os
      filename = os.environ.get('PYTHONSTARTUP')
      if filename and os.path.isfile(filename):
          with open(filename) as fobj:
              startup_file = fobj.read()
          exec(startup_file)