mingrammer

def save_ranking(**kwargs):
    print(kwargs)
save_ranking(first='ming', second='alice', fourth='wilson', third='tom', fifth='roy')
# {'first': 'ming', 'second': 'alice', 'fourth': 'wilson', 'third': 'tom', 'fifth': 'roy'}

mingrammer

def save_ranking(*args):
    print(args) 
save_ranking('ming', 'alice', 'tom', 'wilson', 'roy')
# ('ming', 'alice', 'tom', 'wilson', 'roy')

mingrammer

def save_ranking(first, second=None, third, fourth=None):
    ...

mingrammer

# A function that shows the results of running competitions consisting of 2 to 4 runners.
def save_ranking(first, second, third=None, fourth=None):
    rank = {}
    rank[1], rank[2] = first, second
    rank[3] = third if third is not None else 'Nobody'
    rank[4] = fourth if fourth is not None else 'Nobody'
    print(rank)    

# Pass the 2 positional arguments
save_ranking('ming', 'alice')

mingrammer

# Initialize the zero-valued list with 100 length
zeros_list = [0] * 100 

# Declare the zero-valued tuple with 100 length
zeros_tuple = (0,) * 100  

# Extending the "vector_list" by 3 times
vector_list = [[1, 2, 3]] 
for i, vector in enumerate(vector_list * 3):     
    print("{0} scalar product of vector: {1}".format((i + 1), [(i + 1) * e for e in vector]))

mingrammer

>>> 2 * 3 
6 
>>> 2 ** 3 
8 
>>> 1.414 * 1.414 
1.9993959999999997
>>> 1.414 ** 1.414
1.6320575353248798

mingrammer

# Provisioning script
...
cd /opt/settings
git clone git@github.com/company/config.git

cd /opt/app
git clone git@github.com/company/api-server.git
...

mingrammer

# /opt/settings/config.py
DATABASE_CONFIG = {
    'host': 'localhost',
    'dbname': 'company',
    'user': 'user',
    'password': 'password',
    'port': 3306
}

# main.py

mingrammer

import os
from myapp import app

secret_key = os.environ.get('SECRET_KEY', None)

if not secret_key:
    raise ValueError('You must have "SECRET_KEY" variable')

app.config['SECRET_KEY'] = secert_key

mingrammer

// config.json.example
{
  "DEFAULT": {
    "SECRET_KEY": "...",
    "ADMIN_NAME": "...",
    "AWS_DEFAULT_REGION": "...",
    "MAX_IMAGE_SIZE": 5242880
  },
  "TEST": {
    "TEST_TMP_DIR": "tests",