>>> flask run --debugger
"""
# When running under WSGI, system environment variables are not automatically made available to Python code, and
# an app restart will result in configurations being lost. We work around this with an explicit load from the shell
# environment, sourcing from the Elastic Beanstalk-provided /opt/python/current/env file if available.
if __name__.startswith('_mod_wsgi'):
command = [
'bash', '-c', '{ source /opt/python/current/env || true; } && env'
]
shell_environment = subprocess.Popen(command, stdout=subprocess.PIPE)
for line in shell_environment.stdout:
key, _, value = line.decode('utf-8').rstrip().partition('=')
os.environ[key] = value
application = create_app()
host = application.config['HOST']
port = application.config['PORT']
if __name__ == '__main__':
application.logger.info('Starting development server on %s:%s', host, port)
application.run(host=host, port=port)
elif __name__.startswith('_mod_wsgi'):
# Grab the current EC2 instance id and stash it in an environment variable.
try:
instance_metadata = subprocess.Popen(['ec2-metadata', '-i'],
stdout=subprocess.PIPE)
os.environ['EC2_INSTANCE_ID'] = next(instance_metadata.stdout).decode(
'utf-8').partition(':')[2].strip()
except Exception as e:
from pprintpp import pprint as pp # noqa
"""Run Flask-wrapped code from a Python console.
* From the command line:
``nessie> python -i consoler.py``
* In PyCharm preferences, go to "Build, Execution, Deployment"
* For "Console", enable "Always show debug console"
* For "Python Console", enable "Add source roots to PYTHONPATH"
* Add this line to the starting script:
``runfile('consoler.py')``
* Save
* Click on "Python Console"
* Click the bug icon to start a debugging session:
>>> from nessie.externals import redshift
>>> assignments = redshift.fetch('select * from canvas.assignment_dim limit 10')
>>> pp(assignments)
[
Record(id=12340000001234567, canvas_id=1234567 course_id=12340000009876564, title='Diagnostic Essay'...
"""
app = create_app()
ac = app.app_context()
ac.push()
print(
'You are now in a Flask app context. To run normal app teardown processes, type:'
)
print(' ac.pop()')