durgaswaroop

#!/usr/bin/env python
# coding: utf-8

# Run this from the directory where you see data/.
# %%sh
# ls -F
# data/

# Also create directory data_resized with test and train subdirectories
# %%sh

durgaswaroop

• Optional.empty() - An empty optional
• Optional.of(t) - returns a present Optional containing t. (t must be non-null)
• Optional.ofNullable(t) - returns an Optional with t that can be null

Rules

1. Never return null from a method that's supposed to return an optional. It defeats the purpose of Optional
2. Never do opt.get() unless you can prove that the optional is present.
3. Prefer alternatives to using opt.isPresent() followed by opt.get()
4. It's generally a bad idea to create an Optional for the sole purpose of chaining methods from it to get a value.
5. If an Optional chain is nested or has an intermediate result of Optional<Optional>, it is probably too complex.

durgaswaroop

import sys
import subprocess
import os.path
import inflect


# alias blog="python ~\Desktop\30DaysOfBlogging\blog.py"
# Run the script with `blog <title>`

def main():

durgaswaroop

import json
import requests

access_token = '181d415f34379af07b2c11d144dfbe35d' #Fake token, obviously!

headers = {
    'Authorization': "Bearer " + access_token,
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84'
}

durgaswaroop

This is just to show how to use argparse to create a git like command line structure. It does not have any actual functionality right now.

Output of --help is shown below in this file. The actual code with argparse will be in the other file of this gist.

 % python git_clone_cmd.py clone --help
usage: git_clone_cmd.py clone [-h] [--template <template_directory>] [--local]
                              <repository> [<directory>]

positional arguments:

durgaswaroop

# application1.py

from time import sleep


def is_windows():
    # This sleep could be some complex operation instead
    sleep(5)
    return True

durgaswaroop

import tweepy
import os

# Read all the auth keys from environment variables
consumer_key = os.environ["t_consumer_key"] 
consumer_secret = os.environ["t_consumer_secret"] 
access_token = os.environ["t_access_token"]
access_token_secret = os.environ["t_access_token_secret"]

# Using the keys, setup the authorization

durgaswaroop

durgaswaroop

#!/usr/bin/env python
# coding: utf-8

from PIL import Image
from resizeimage import resizeimage

import os


def resize_image(directory, image_name, new_directory, new_dims=[256, 256]):

durgaswaroop

#!/usr/bin/env python
# coding: utf-8

# Run this from the directory where you see data/.
# %%sh
# ls -F
# data/

# Also create directory data_resized with test and train subdirectories
# %%sh