The Google Cloud SDK - part 001 .

This tutorial will cover this steps into development with Google Cloud SDK and Python version 2.7:

• install the Google Cloud SDK on the computer;
• make settings online for your Google project to use Google Cloud SDK;
• run the online project of Google Cloud SDK;
• make setting into your computer to run the local project ;

First, you need to download the Google Cloud SDK and run it.


After GUI install a window command will ask you to set the default project for your work.

Welcome to the Google Cloud SDK! Run "gcloud -h" to get the list of available commands.
---
Welcome! This command will take you through the configuration of gcloud.

Your current configuration has been set to: [default]

You can skip diagnostics next time by using the following flag:
  gcloud init --skip-diagnostics

Network diagnostic detects and fixes local network connection issues.
Checking network connection...done.
Reachability Check passed.
Network diagnostic (1/1 checks) passed.

You must log in to continue. Would you like to log in (Y/n)?  Y
...

The next step is to start online to deploying a Hello World app with: Deploy a Hello World app:

This will start an online tutorial into the right area of the screen with all commands and steps for your Google Cloud SDK online project.
Follow this steps and in the end will see how the online Google Cloud SDK project will show: Hello, World! into your browser.
The next step is to make a local project and run it.
You can use the python docs sample from GoogleCloudPlatform but is not the same with the online example.
To download the GoogleCloudPlatform sample use git command:

C:\Python27>git clone https://github.com/GoogleCloudPlatform/python-docs-samples
Cloning into 'python-docs-samples'...
remote: Counting objects: 12126, done.
remote: Compressing objects: 100% (16/16), done.
remote: Total 12126 (delta 1), reused 10 (delta 1), pack-reused 12106
Receiving objects: 100% (12126/12126), 3.37 MiB | 359.00 KiB/s, done.
Resolving deltas: 100% (6408/6408), done.

C:\Python27>cd python-docs-samples/appengine/standard/hello_world

To start this sample into your google project you need to use this:

C:\Python27\python-docs-samples\appengine\standard\hello_world>gcloud app deploy app.yaml --project encoded-metrics-147522
Services to deploy:

descriptor:      [C:\Python27\python-docs-samples\appengine\standard\hello_world\app.yaml]
source:          [C:\Python27\python-docs-samples\appengine\standard\hello_world]
target project:  [encoded-metrics-147522]
target service:  [default]
target version:  [20170817t234925]
target url:      [https://encoded-metrics-147522.appspot.com]


Do you want to continue (Y/n)?  Y

Beginning deployment of service [default]...
#============================================================#
#= Uploading 5 files to Google Cloud Storage                =#
#============================================================#
File upload done.
Updating service [default]...done.
Waiting for operation [apps/encoded-metrics-147522/operations/XXXXXX] to complete...done.
Updating service [default]...done.
Deployed service [default] to [https://XXXXXX.appspot.com]

You can stream logs from the command line by running:
  $ gcloud app logs tail -s default

To view your application in the web browser run:
  $ gcloud app browse

C:\Python27\python-docs-samples\appengine\standard\hello_world>gcloud app browse
Opening [https://XXXXXX.appspot.com] in a new tab in your default browser.

C:\Python27\python-docs-samples\appengine\standard\hello_world>

This will start your application with the text - Hello, World! into your browser address bar with this web address: XXXXXX.appspot.com.

The DreamPie - interactive shell .

The DreamPie was designed to bring you a great interactive shell Python experience.
There are two ways to install the DreamPie:

• cloning the git repository;
• downloading a release.

You can read about installation and download here.
To run it just try the dreampie.exe with your python shell, I used with my python 2.7 version:

C:\DreamPie>dreampie.exe --hide-console-window c:\Python27\python.exe

Let's see one screenshot of this running command:

Also, I tested with Python 3.6.2 and works well.
The main window is divided into the history box and the code box.
The history box lets you view previous commands and their output.
The code box for writing your code.
Some keys I used:

• Ctr+Enter - run the code;
• Ctr+up / down arrow - adds the previous / next source code;
• Ctr+Space - show code completions;
• Ctr+T - open a new tab code;
• Ctr+W - close the tab code;
• Ctr+S - save your work history into HTML file.

You can set your font, colors and many features.
I make the installation into C:\DreamPie folder, and comes with all these folders and files:

C:\DreamPie>tree
Folder PATH listing for volume free-tutorials
Volume serial number is 000000FF 0EB1:091D
C:.
├───data
│   ├───language-specs
│   ├───subp-py2
│   │   └───dreampielib
│   │       ├───common
│   │       └───subprocess
│   └───subp-py3
│       └───dreampielib
│           ├───common
│           └───subprocess
├───gtk-2.0
│   ├───cairo
│   ├───gio
│   ├───glib
│   ├───gobject
│   ├───gtk
│   └───runtime
│       ├───bin
│       ├───etc
│       │   ├───bash_completion.d
│       │   ├───fonts
│       │   ├───gtk-2.0
│       │   └───pango
│       ├───lib
│       │   ├───gdk-pixbuf-2.0
│       │   │   └───2.10.0
│       │   │       └───loaders
│       │   ├───glib-2.0
│       │   │   └───include
│       │   └───gtk-2.0
│       │       ├───2.10.0
│       │       │   └───engines
│       │       ├───include
│       │       └───modules
│       └───share
│           ├───aclocal
│           ├───dtds
│           ├───glib-2.0
│           │   ├───gdb
│           │   ├───gettext
│           │   │   └───po
│           │   └───schemas
│           ├───gtk-2.0
│           ├───gtksourceview-2.0
│           │   ├───language-specs
│           │   └───styles
│           ├───icon-naming-utils
│           ├───themes
│           │   ├───Default
│           │   │   └───gtk-2.0-key
│           │   ├───Emacs
│           │   │   └───gtk-2.0-key
│           │   ├───MS-Windows
│           │   │   └───gtk-2.0
│           │   └───Raleigh
│           │       └───gtk-2.0
│           └───xml
│               └───libglade
└───share
    ├───applications
    ├───man
    │   └───man1
    └───pixmaps

The flickrapi python module .

Flickr is one of the most popular photo hosting websites.
The development team let us test the API and with a plenty of opportunities to use Flickr.
Today I tested the flickrapi python module.
I used the python 2.7 version and pip to install it.

C:\>cd Python27

C:\Python27>cd Scripts

C:\Python27\Scripts>pip install flickrapi
Collecting flickrapi
  Downloading flickrapi-2.3-py2-none-any.whl
...
  Running setup.py install for oauthlib ... done
Successfully installed flickrapi-2.3 oauthlib-2.0.2 requests-oauthlib-0.8.0 requests-toolbelt-0.8.0

You need to have/make an API key into Account Settings, see my API key:
Your API keys You have 1 API key registered to this account.
Then you need to know your user_id.
This can be done by asking api online with your username and the result will be something like this: xxxxxxxx@Nxx.
The example I used is from documentation and I change with my API key to test this python module.

>>>import flickrapi
>>>
>>>api_key = u'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
>>>api_secret = u'YYYYYYYYYYYYYYYYYYYYYYY'
>>>
>>>flickr = flickrapi.FlickrAPI(api_key, api_secret)
>>>photos = flickr.photos.search(user_id='xxxxxxxx@Nxx', per_page='10')
>>>sets = flickr.photosets.getList(user_id='xxxxxxxx@Nxx')
>>> dir(sets)
['__class__', '__contains__', '__copy__', '__deepcopy__', '__delattr__', '__delitem__', '__doc__',
 '__format__', '__getattribute__', '__getitem__', '__hash__', '__init__', '__iter__', '__len__', 
'__new__', '__nonzero__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__', '__setattr__',
 '__setitem__', '__sizeof__', '__str__', '__subclasshook__', '_init', 'addnext', 'addprevious', 
'append', 'attrib', 'base', 'clear', 'cssselect', 'extend', 'find', 'findall', 'findtext', 'get', 
'getchildren', 'getiterator', 'getnext', 'getparent', 'getprevious', 'getroottree', 'index', 'insert',
 'items', 'iter', 'iterancestors', 'iterchildren', 'iterdescendants', 'iterfind', 'itersiblings', 
'itertext', 'keys', 'makeelement', 'nsmap', 'prefix', 'remove', 'replace', 'set', 'sourceline', 
'tag', 'tail', 'text', 'values', 'xpath']
>>> print sets.attrib['stat']
ok
>>> sets.find('photosets').attrib
{'total': '4', 'perpage': '4', 'page': '1', 'pages': '1'}
>>> print "upload a photo via browser - set permisions"
upload a photo via browser - set permisions
>>> flickr.authenticate_via_browser(perms='write')
127.0.0.1 - - [12/Aug/2017 22:05:00] "GET /?oauth_token=xxxxxx-xxxxx&oauth_verifier=xxxxxxxxx HTTP/1.1" 200 -
>>> flickr.upload("0001.gif")

>>> print "try show title of my photos and id"
try show title of my photos and id
for child in photos:
  for i in child:
    photo_set = []
    try:
      title = i.attrib['title']
      print title
    except Exception, e:
      print e
    sets = flickr.photos_getAllContexts(photo_id = i.attrib["id"])
    for j in sets:
      if j.tag == "set":
        photo_set.append(j.attrib["id"])
        print photo_set

The result is my photos title and id:
painting_world
DSC_0112
['72157632077721715']
DSC_0111
['72157632077721715']
DSC_0113
['72157632077721715']
DSC_0110
['72157632077721715']
DSC_0094
['72157632077721715']
DSC_0091
['72157632077721715']
DSC_0108
I tested wit Python 362 version:

C:\Python27>cd ..

C:\>cd Python362

C:\Python362>cd Scripts

C:\Python362\Scripts>pip install flickrapi
Collecting flickrapi
  Downloading flickrapi-2.3-py3-none-any.whl
Collecting requests>=2.2.1 (from flickrapi)
  Downloading requests-2.18.3-py2.py3-none-any.whl (88kB)
    100% |████████████████████████████████| 92kB 1.4MB/s
Collecting six>=1.5.2 (from flickrapi)
  Using cached six-1.10.0-py2.py3-none-any.whl
...
Successfully installed certifi-2017.7.27.1 chardet-3.0.4 flickrapi-2.3 idna-2.5 oauthlib-2.0.2 requests-2.18.3
 requests-oauthlib-0.8.0 requests-toolbelt-0.8.0 six-1.10.0 urllib3-1.22

The pysolar - python module.

Today I tested another python module named pysolar with python 2.7 and 3.6.2 versions.
You can read more about this python module here:
Pysolar is a collection of Python libraries for simulating the irradiation of any point on earth by the sun. It includes code for extremely precise ephemeris calculations and more.
Using pip under Windows OS to install this python module:

C:\Python27\Scripts>pip install pysolar
...
Successfully built pysolar
Installing collected packages: pysolar
Successfully installed pysolar-0.7

I try also with python 3.6.2 version:

C:\Python362\Scripts>pip install pysolar
Collecting pysolar
  Using cached pysolar-0.7.tar.gz
Installing collected packages: pysolar
  Running setup.py install for pysolar ... done
Successfully installed pysolar-0.7

Let's start with a simple example to calculate the angle between the sun and a plane tangent to the earth where
you are:

C:\Python362>python.exe
Python 3.6.2 (v3.6.2:5fd33b5, Jul  8 2017, 04:57:36) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from pysolar.solar import *
>>> import datetime
>>> my_data = datetime.datetime.now()
>>> print (my_data)
2017-08-10 18:12:01.997373
>>> get_altitude_fast(47.4616,26.3015,datetime.datetime.now())
-6.393190003993212

Let's try the scattering of light by the atmosphere, though it uses an
atmospheric model based on data taken in the United States:

>>> latitude_deg =47.2741
>>> longitude_deg = 26.185
>>> my_data = datetime.datetime.now()
>>> altitude_deg = get_altitude(latitude_deg, longitude_deg,my_data)
C:\Python362\lib\site-packages\pysolar\time.py:105: UserWarning: I don't know about leap seconds after 2015
  (leap_seconds_base_year + len(leap_seconds_adjustments) - 1)
>>> azimuth_deg = get_azimuth(latitude_deg, longitude_deg,  my_data)
>>> radiation.get_radiation_direct(my_data, altitude_deg)
634.4916522219954

About this issue:I don't know about leap seconds after 2015 read here.

Using Flask and Flask-WTF to build websites in Python 2.7 and 3.6.2 - part 002.

This is one update of my old tutorial about Flask and python 2.7 under Linux from here.
The default install of python 2.7 and pip is very simple - read this tutorial.
First, you need to install the Flask python module under Windows 10:

C:\Python27\Scripts>pip install Flask
Collecting Flask
Downloading Flask-0.11.1-py2.py3-none-any.whl (80kB)
100% |################################| 81kB 564kB/s
Collecting click>=2.0 (from Flask)
Downloading click-6.6-py2.py3-none-any.whl (71kB)
100% |################################| 71kB 1.3MB/s
Collecting Werkzeug>=0.7 (from Flask)
Downloading Werkzeug-0.11.11-py2.py3-none-any.whl (306kB)
100% |################################| 307kB 231kB/s
Collecting Jinja2>=2.4 (from Flask)
Downloading Jinja2-2.8-py2.py3-none-any.whl (263kB)
100% |################################| 266kB 890kB/s
Collecting itsdangerous>=0.21 (from Flask)
Downloading itsdangerous-0.24.tar.gz (46kB)
100% |################################| 51kB 1.3MB/s
Collecting MarkupSafe (from Jinja2>=2.4->Flask)
Downloading MarkupSafe-0.23.tar.gz
Installing collected packages: click, Werkzeug, MarkupSafe, Jinja2, itsdangerous
, Flask
Running setup.py install for MarkupSafe ... done
Running setup.py install for itsdangerous ... done
Successfully installed Flask-0.11.1 Jinja2-2.8 MarkupSafe-0.23 Werkzeug-0.11.11
click-6.6 itsdangerous-0.24

The simple example of the running Flask python module is one script named hello.py:

from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello World!"

if __name__ == "__main__":
    app.run()

Using the command to run the script and show the result into your browser:

C:\Python27>python.exe hello.py
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

Now the installation of Flask-WTF python module:

C:\Python27\Scripts>pip install Flask-WTF
Collecting Flask-WTF
  Downloading Flask_WTF-0.14.2-py2.py3-none-any.whl
Collecting WTForms (from Flask-WTF)
  Downloading WTForms-2.1.zip (553kB)
    100% |################################| 563kB 1.7MB/s
Requirement already satisfied: Flask in c:\python27\lib\site-packages (from Flask-WTF)
Requirement already satisfied: click>=2.0 in c:\python27\lib\site-packages (from Flask->Flask-WTF)
Requirement already satisfied: Werkzeug>=0.7 in c:\python27\lib\site-packages (from Flask->Flask-WTF)
Requirement already satisfied: Jinja2>=2.4 in c:\python27\lib\site-packages (from Flask->Flask-WTF)
Requirement already satisfied: itsdangerous>=0.21 in c:\python27\lib\site-packages (from Flask->Flask-WTF)
Requirement already satisfied: MarkupSafe>=0.23 in c:\python27\lib\site-packages (from Jinja2>=2.4->Flask->Flask-WTF)
Installing collected packages: WTForms, Flask-WTF
  Running setup.py install for WTForms ... done
Successfully installed Flask-WTF-0.14.2 WTForms-2.1

Now I try with Python 3.6.2 with both python modules and works great.

C:\Python362\Scripts>pip3.6.exe install flask
...
Successfully installed Jinja2-2.9.6 MarkupSafe-1.0 Werkzeug-0.12.2 click-6.7 flask-0.12.2 itsdangerous-0.24

C:\Python362\Scripts>Flask-WTF
'Flask-WTF' is not recognized as an internal or external command,
operable program or batch file.

C:\Python362\Scripts>pip3.6.exe install Flask-WTF
...
Successfully installed Flask-WTF-0.14.2 WTForms-2.1

The gtts python module.

This python module named gtts will create an mp3 file from spoken text via the Google TTS (Text-to-Speech) API.
The installation of the gtts python module under Windows 10.

C:\Python27\Scripts>pip install gtts
Collecting gtts
  Downloading gTTS-1.2.0.tar.gz
Requirement already satisfied: six in c:\python27\lib\site-packages (from gtts)
Requirement already satisfied: requests in c:\python27\lib\site-packages (from gtts)
Collecting gtts_token (from gtts)
  Downloading gTTS-token-1.1.1.zip
Requirement already satisfied: chardet<3 .1.0="">=3.0.2 in c:\python27\lib\site-packages (from requests->gtts)
Requirement already satisfied: certifi>=2017.4.17 in c:\python27\lib\site-packages (from requests->gtts)
Requirement already satisfied: idna<2 .6="">=2.5 in c:\python27\lib\site-packages (from requests->gtts)
Collecting urllib3<1 .22="">=1.21.1 (from requests->gtts)
  Using cached urllib3-1.21.1-py2.py3-none-any.whl
Installing collected packages: gtts-token, gtts, urllib3
  Running setup.py install for gtts-token ... done
  Running setup.py install for gtts ... done
  Found existing installation: urllib3 1.22
    Uninstalling urllib3-1.22:
      Successfully uninstalled urllib3-1.22
Successfully installed gtts-1.2.0 gtts-token-1.1.1 urllib3-1.21.1

Let's see a basic example:

from gtts import gTTS
import os
import pygame.mixer
from time import sleep
 
user_text=input("Type your text: ")
 
translate=gTTS(text=user_text ,lang='en')
translate.save('output.wav')

pygame.mixer.init()
path_name=os.path.realpath('output.wav')
real_path=path_name.replace('\\','\\\\')
pygame.mixer.music.load(open(real_path,"rb"))
pygame.mixer.music.play()
while pygame.mixer.music.get_busy():
    sleep(1)

The text will be taken by input into a user_text variable.
You need to type the text into quotes also you will get an error.
The result will be one audio file named output.wav and play it by pygame python module.
This uses the default voices for all languages. I don't find a way to change this voices with python.