happysundar

 brew update && brew upgrade brew-cask && brew cleanup

happysundar

ansible-playbook -i ../vagrant/vagrant_ansible_inventory_default -u vagrant -vvv --private-key=/Users/sundar/.vagrant.d/insecure_private_key ./playbook.yml

happysundar

def check_env():
    (py_major, py_minor, py_patchlevel) = platform.python_version_tuple()
    if py_major != '2' and py_minor != '7':
        exit("This script should be run in python version 2.7.X. Current version of python is %s" % platform.python_version())
    if not hasattr(sys, 'real_prefix'):
        exit("This script should be run within a virtualevn. Have you run the 'workon <virtual_env_name>' command?")

happysundar

__filename = inspect.getframeinfo(inspect.currentframe()).filename
__path = os.path.dirname(os.path.abspath(filename))

# And then, do something like:
if not os.path.isabs(arguments['--bound-spec']):
    arguments['--bound-spec'] = os.path.normpath(os.path.join(__path, arguments['--bound-spec']))

happysundar

@staticmethod vs @classmethod

If you intend to refer to class variables within a @staticmethod, then you end up using the actual name of the enclosing class. This makes the method un-inheritable only in the cases you refer to the class variables, and the variables happen to be overriden in the subclass - it can still be called from the derived class / derived class instance. In other words, @staticmethods may not behave like proper, polymorphic methods when class variables are overridden.

class Base(object):
	class_vars = ['A','B','C']
	
	@staticmethod

happysundar

class DiGraph(object):
    def __init__(self):
        super(DiGraph, self).__init__()

        self.g = dict()

    def add_node_and_neighbors(self, node, neighbors):
        assert node
        assert isinstance(node, basestring)

happysundar

#
# use this if you want to include modules from a subfolder
#

__ = os.path.abspath(sys.argv[0])

while os.path.dirname(__) != __:
    if os.path.exists(os.path.join(__, 'common', '__init__.py')):
        sys.path.insert(0, __)
        break

happysundar

  schema = Schema(
        {
            'rovi_data_dir':
                And(
                    And(
                        os.path.exists,
                        os.path.isdir,
                        lambda s: os.access(s, os.R_OK),
                        error="The path to rovi data '%s' should be an existing directory and be readable. Please check" % arguments['<rovi_data_dir>']
                    ),

happysundar

/usr/pgsql-9.3/bin/pg_dump -U <user_name> -d <db_name> -f <backup_file>.sql -h <db_host>
/usr/pgsql-9.3/bin/psql -U <user_name> -d <db_name> -f <backup_file>.sql -h <db_host>

happysundar

DROP FUNCTION IF EXISTS get_image_records( BIGINT ) CASCADE;
CREATE OR REPLACE FUNCTION
  get_image_records(input_program_id BIGINT)
  RETURNS SETOF JSON STABLE
AS $$
BEGIN
  RETURN QUERY
  WITH T2 AS (
      SELECT
        file_url :: TEXT,