python-catalin

Thursday, January 26, 2017

The kivy pyhon module for android.

First you need to install kivy python module.
The kivy python module

C:\>cd Python27



C:\Python27>cd Scripts



C:\Python27\Scripts>pip install kivy

Collecting kivy

Downloading Kivy-1.9.1-cp27-none-win32.whl (7.4MB)

100% |################################| 7.4MB 50kB/s

Collecting Kivy-Garden>=0.1.4 (from kivy)

Downloading kivy-garden-0.1.4.tar.gz

Requirement already satisfied: requests in c:\python27\lib\site-packages (from Kivy-Garden>=0.1.4->kivy)

Installing collected packages: Kivy-Garden, kivy

Running setup.py install for Kivy-Garden ... done

Successfully installed Kivy-Garden-0.1.4 kivy-1.9.1

Use this to add new pthon modules:

python -m pip install --upgrade docutils pygments pypiwin32 kivy.deps.sdl2 kivy.deps.glew kivy.deps.gstreamer --extra-index-url https://kivy.org/downloads/packages/simple/

If the python kivy.deps.gstreamer don't working then is not problem will try without this python module.
To see outdated python modules , use this commnds:
python -m pip install --upgrade pip wheel setuptools
pip list outdated
Let's upgrade all of python modules with this:
pip freeze > requirements.txt && pip install --upgrade -r requirements.txt && del requirements.txt
Another way to install this python module can be found here.
The demo can be star with this comman line:
C:\Python27>python share\kivy-examples\demo\showcase\main.py
You can also test one simple python script:

from kivy.app import App

from kivy.uix.button import Button



class TestApp(App):

    def build(self):

        return Button(text='Hello World')



TestApp().run()

To use with android operating system then test Buildozer.
This tool supports packaging for Android via the python-for-android project, and for iOS via the kivy-ios project. Support for other operating systems is intended in the future.

Friday, December 30, 2016

The python arch module for financial econometrics.

This python module arch: is a work-in-progress for ARCH and other tools for financial econometrics, written in Python (and Cython).
The arch python module come with tools for:

Univariate volatility models

Bootstrapping

Multiple comparison procedures

Unit root tests

You can read and see many examples here.
Let's start with instalation into my python 2.7.12 version.
First you need to install this python module with pip tool:

C:\Python27\Scripts>pip install Arch

Collecting Arch

Downloading arch-4.0.tar.gz (107kB)

100% |################################| 112kB 390kB/s

Requirement already satisfied: matplotlib>=1.4 in c:\python27\lib\site-packages (from Arch)

Requirement already satisfied: scipy>=0.15 in c:\python27\lib\site-packages (from Arch)

Collecting patsy>=0.2 (from Arch)

Downloading patsy-0.4.1-py2.py3-none-any.whl (233kB)

100% |################################| 235kB 906kB/s

Collecting statsmodels>=0.6 (from Arch)

Downloading statsmodels-0.6.1.tar.gz (7.0MB)

100% |################################| 7.0MB 85kB/s

Collecting pandas>=0.16 (from Arch)

Downloading pandas-0.19.2-cp27-cp27m-win32.whl (6.8MB)

100% |################################| 6.8MB 81kB/s

Requirement already satisfied: numpy>=1.6 in c:\python27\lib\site-packages (from matplotlib>=1.4->Arch)

Requirement already satisfied: python-dateutil in c:\python27\lib\site-packages (from matplotlib>=1.4->Arch)

Requirement already satisfied: cycler in c:\python27\lib\site-packages (from matplotlib>=1.4->Arch)

Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,>=1.5.6 in c:\python27\lib\site-packages (from matplotlib>=1.4->Arch)

Requirement already satisfied: pytz in c:\python27\lib\site-packages (from matplotlib>=1.4->Arch)

Requirement already satisfied: six in c:\python27\lib\site-packages (from patsy>=0.2->Arch)

Installing collected packages: patsy, pandas, statsmodels, Arch

Running setup.py install for statsmodels ... done

Running setup.py install for Arch ... done

Successfully installed Arch-4.0 pandas-0.19.2 patsy-0.4.1 statsmodels-0.6.1

This python module is very mathematical and technical so I'll refer you to a few examples.
Can be used in statistical research and econometrics, or the application of mathematics, statistics, and computer science to economic data.

Sunday, December 18, 2016

NVIDIA python module Theano.

I try to use python module Theano.
First I install this python module.

C:\WINDOWS\system32>cd C:\Python27



C:\Python27>cd Scripts



C:\Python27\Scripts>pip install Theano

Collecting Theano

Using cached Theano-0.8.2.tar.gz

Requirement already satisfied: numpy>=1.7.1 in c:\python27\lib\site-packages (from Theano)

Requirement already satisfied: scipy>=0.11 in c:\python27\lib\site-packages (from Theano)

Requirement already satisfied: six>=1.9.0 in c:\python27\lib\site-packages (from Theano)

Installing collected packages: Theano

Running setup.py install for Theano ... done

Successfully installed Theano-0.8.2

When I try to used I got this error:

import theano

WARNING (theano.configdefaults): g++ not detected ! Theano will be unable to execute optimized C-implementations (for both CPU and GPU) and will default to Python implementations. Performance will be severely degraded. To remove this warning, set Theano flags cxx to an empty string.

I try to fix that error, but I don't find any solution.
This python module work. I tested with examples from NVIDIA, see:

Thursday, December 15, 2016

Use the twitter python module - part 002.

Using the twitter python module named python-twitter you can search twitter query into the local area.
The default tutorial is here.
The source code to change is that line:
results = api.GetSearch(raw_query="q=from%3Asomething"
with:
results = api.GetSearch(raw_query="q=&geocode=lat,long,10km")
Also, you need to put your lat and long and the area sized.
The good point of this you will be able to spell time with twitter posts.

Wednesday, December 14, 2016

Use the twitter python module - part 001.

About this python module python-twitter you can read here.

C:\>cd Python27

C:\Python27>cd Scripts

C:\Python27\Scripts>pip install python-twitter

Collecting python-twitter

Downloading python_twitter-3.2-py2-none-any.whl (71kB)

100% |################################| 81kB 292kB/s

Requirement already satisfied: requests in c:\python27\lib\site-packages (from python-twitter)

Requirement already satisfied: requests-oauthlib in c:\python27\lib\site-packages (from python-twitter)

Collecting future (from python-twitter)

Downloading future-0.16.0.tar.gz (824kB)

100% |################################| 829kB 485kB/s

Requirement already satisfied: oauthlib>=0.6.2 in c:\python27\lib\site-packages

(from requests-oauthlib->python-twitter)

Installing collected packages: future, python-twitter

Running setup.py install for future ... done

Successfully installed future-0.16.0 python-twitter-3.2

Let's see one simple example with one authentication key and token and one query:

import os
import json
import twitter
from twitter import *
CONSUMER_KEY=""
CONSUMER_SECRET=""

ACCESS_TOKEN=""
ACCESS_TOKEN_SECRET=""

api = Api(CONSUMER_KEY,
          CONSUMER_SECRET,
          ACCESS_TOKEN,
          ACCESS_TOKEN_SECRET)
def main():
    with open('output.txt', 'a') as f:
        for line in api.GetStreamFilter(track='something', languages=LANGUAGES):
            print line
    results = api.GetSearch(raw_query="q=from%3Asomething")
    print results
if __name__ == '__main__':
    main()

Monday, December 12, 2016

Use the tweepy to deal with twitter api - part 001.

I will show you how to install the python module named tweepy and how to make authentication into twitter webpage.
This will install the tweepy python module.

C:\>cd Python27

C:\Python27>cd Scripts

C:\Python27\Scripts>pip install tweepy

Collecting tweepy

Downloading tweepy-3.5.0-py2.py3-none-any.whl

Collecting requests>=2.4.3 (from tweepy)

Downloading requests-2.12.3-py2.py3-none-any.whl (575kB)

100% |################################| 583kB 556kB/s

Collecting requests-oauthlib>=0.4.1 (from tweepy)

Downloading requests_oauthlib-0.7.0-py2.py3-none-any.whl

Requirement already satisfied: six>=1.7.3 in c:\python27\lib\site-packages (from

tweepy)

Collecting oauthlib>=0.6.2 (from requests-oauthlib>=0.4.1->tweepy)

Downloading oauthlib-2.0.1.tar.gz (122kB)

100% |################################| 133kB 506kB/s

Installing collected packages: requests, oauthlib, requests-oauthlib, tweepy

Running setup.py install for oauthlib ... done

Successfully installed oauthlib-2.0.1 requests-2.12.3 requests-oauthlib-0.7.0 tweepy-3.5.0

To deal with twitter api then you need to create a new application into this webpage.
This webpage will give for authentication your date to connect to twitter:
Application Settings
consumer_key=""
consumer_secret=""
Your Access Token
access_token=""
access_token_secret=""
Let's start with a simple example, by using your application settings and access token:

import tweepy

from tweepy.streaming import StreamListener

from tweepy import OAuthHandler

from tweepy import Stream



consumer_key=""

consumer_secret=""



access_token=""

access_token_secret=""



auth = tweepy.OAuthHandler(consumer_key, consumer_secret)

auth.set_access_token(access_token, access_token_secret)



api = tweepy.API(auth)



print(api.me().name)



class StdOutListener(StreamListener):

""" A listener handles tweets that are received from the stream.

This is a basic listener that just prints received tweets to stdout.

"""

def on_data(self, data):

print(data)

return True



def on_error(self, status):

print(status)



if __name__ == '__main__':

lista = StdOutListener()

auth = OAuthHandler(consumer_key, consumer_secret)

auth.set_access_token(access_token, access_token_secret)



stream = Stream(auth, lista)

stream.filter(track=['internet'])

Using python shell to run this script will show all about 'internet'.
The output will come into raw format.
Let's try another example to update your status with this message:
I using OAuth authentication via Tweepy!
Just add this into my code before class definition:
api.update_status(status='I using OAuth authentication via Tweepy!')
You can rad more about streaming by reading this docs.
For example, I used track from here.

Sunday, December 11, 2016

The morse python module with pip installation versus precompiled archive wheel.

Today I try to deal with morse python module and it took me a while to install python modules because of their dependencies.
I started with the pip install of morse module but I got dependency errors in python modules
Because I try to fix this issue the result of this tutorial is more about how to install some python module: matplotlib, scipy, numpy, mkl and morse.
The all installation process will help you to understand how can be fix some pip installation versus precompiled archive wheel.

C:\Python27\Scripts>pip install matplotlib

Collecting matplotlib

  Downloading matplotlib-1.5.3-cp27-cp27m-win32.whl (6.0MB)

    100% |################################| 6.0MB 98kB/s

Requirement already satisfied: numpy>=1.6 in c:\python27\lib\site-packages (from

 matplotlib)

Collecting python-dateutil (from matplotlib)

  Downloading python_dateutil-2.6.0-py2.py3-none-any.whl (194kB)

    100% |################################| 194kB 1.4MB/s

Collecting cycler (from matplotlib)

  Downloading cycler-0.10.0-py2.py3-none-any.whl

Collecting pyparsing!=2.0.4,!=2.1.2,>=1.5.6 (from matplotlib)

  Downloading pyparsing-2.1.10-py2.py3-none-any.whl (56kB)

    100% |################################| 61kB 2.0MB/s

Collecting pytz (from matplotlib)

  Downloading pytz-2016.10-py2.py3-none-any.whl (483kB)

    100% |################################| 491kB 656kB/s

Collecting six>=1.5 (from python-dateutil->matplotlib)

  Downloading six-1.10.0-py2.py3-none-any.whl

Installing collected packages: six, python-dateutil, cycler, pyparsing, pytz, ma

tplotlib

Successfully installed cycler-0.10.0 matplotlib-1.5.3 pyparsing-2.1.10 python-da

teutil-2.6.0 pytz-2016.10 six-1.10.0

Download SciPy wheel file from here.
Install this file with:

C:\Python27\Scripts>pip install scipy-0.18.1-cp27-cp27m-win32.whl

Processing c:\python27\scripts\scipy-0.18.1-cp27-cp27m-win32.whl

Installing collected packages: scipy

Successfully installed scipy-0.18.1

Now you can install morse pyhon module.
pip install morse
If you installed the numpy by pip, but the scipy was installed by precompiled archive then expects numpy+mkl.
So to fix that issue, I download the numpy-1.12.0b1+mkl-cp27-cp27m-win32.whl file and install this with pip:

C:\Python27\Scripts>pip install "numpy-1.12.0b1+mkl-cp27-cp27m-win32.whl"

Processing c:\python27\scripts\numpy-1.12.0b1+mkl-cp27-cp27m-win32.whl

Installing collected packages: numpy

  Found existing installation: numpy 1.11.2

    Uninstalling numpy-1.11.2:

      Successfully uninstalled numpy-1.11.2

Successfully installed numpy-1.12.0b1+mkl

Let's test the morse python module.

C:\Python27>python

Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:19:22) [MSC v.1500 32 bit (

Intel)] on win32

Type "help", "copyright", "credits" or "license" for more information.

>>> import morse

>>> dir(morse)

['__builtins__', '__doc__', '__file__', '__name__', '__package__', 'lookup', 'st

ring_to_morse']

>>> dir(morse.lookup)

['__class__', '__cmp__', '__contains__', '__delattr__', '__delitem__', '__doc__'

, '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__gt__',

 '__hash__', '__init__', '__iter__', '__le__', '__len__', '__lt__', '__ne__', '_

_new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setitem__'

, '__sizeof__', '__str__', '__subclasshook__', 'clear', 'copy', 'fromkeys', 'get

', 'has_key', 'items', 'iteritems', 'iterkeys', 'itervalues', 'keys', 'pop', 'po

pitem', 'setdefault', 'update', 'values', 'viewitems', 'viewkeys', 'viewvalues']

>>> print morse.lookup.keys()

['"', '$', '&', '(', ',', '.', '0', '2', '4', '6', '8', ':', '@', 'B', 'D', 'F',

 'H', 'J', 'L', 'N', 'P', 'R', 'T', 'V', 'X', 'Z', '!', "'", ')', '+', '-', '/',

 '1', '3', '5', '7', '9', ';', '=', '?', 'A', 'C', 'E', 'G', 'I', 'K', 'M', 'O',

 'Q', 'S', 'U', 'W', 'Y', '_']

>>> print morse.lookup.items()

[('"', '.-..-.'), ('$', '...-..-'), ('&', '.-...'), ('(', '-.--.'), (',', '--..-

-'), ('.', '.-.-.-'), ('0', '-----'), ('2', '..---'), ('4', '....-'), ('6', '-..

..'), ('8', '---..'), (':', '---...'), ('@', '.--.-.'), ('B', '-...'), ('D', '-.

.'), ('F', '..-.'), ('H', '....'), ('J', '.---'), ('L', '.-..'), ('N', '-.'), ('

P', '.--.'), ('R', '.-.'), ('T', '-'), ('V', '...-'), ('X', '-..-'), ('Z', '--..

'), ('!', '-.-.--'), ("'", '.----.'), (')', '-.--.-'), ('+', '.-.-.'), ('-', '-.

...-'), ('/', '-..-.'), ('1', '.----'), ('3', '...--'), ('5', '.....'), ('7', '-

-...'), ('9', '----.'), (';', '-.-.-.'), ('=', '-...-'), ('?', '..--..'), ('A',

'.-'), ('C', '-.-.'), ('E', '.'), ('G', '--.'), ('I', '..'), ('K', '-.-'), ('M',

 '--'), ('O', '---'), ('Q', '--.-'), ('S', '...'), ('U', '..-'), ('W', '.--'), (

'Y', '-.--'), ('_', '..--.-')]

You can see the python morse module is working well.

LibreOffice and python scripts.

I try to deal with python scripts under LibreOffice applications.
The full tutorial can be found here: Python and LibreOffice – part 001.
I will come with new tutorials about LibreOffice and python.

Saturday, December 10, 2016

The python modules pygobject, pycairo and pygtk under Windows OS.

I used the python version 2.7 32 bits under .

C:\Python27>python

Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:19:22) [MSC v.1500 32 bit (

Intel)] on win32

Type "help", "copyright", "credits" or "license" for more information.

The issue is to instal PyGTK python module but you can see I got errors.

C:\>cd Python27



C:\Python27>cd script

The system cannot find the path specified.



C:\Python27>cd Scripts



C:\Python27\Scripts>pip install PyGTK

Collecting PyGTK

Downloading pygtk-2.24.0.tar.bz2 (2.4MB)

100% |################################| 2.4MB 224kB/s

Complete output from command python setup.py egg_info:

ERROR: Could not import dsextras module: Make sure you have installed pygobj

ect.



----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in c:\users\my_account

\appdata\local\temp\pip-build-os60hf\PyGTK\



C:\Python27\Scripts>pip install pygobject

Collecting pygobject

Downloading pygobject-2.28.3.tar.bz2 (889kB)

100% |################################| 890kB 550kB/s

Complete output from command python setup.py egg_info:

ERROR: Could not find pkg-config: Please check your PATH environment variabl

e.



----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in c:\users\my_account

\appdata\local\temp\pip-build-lt0gbh\pygobject\

I got the pygobject-2.28.3.win32-py2.7.msi, pycairo-1.8.10.win32-py2.7.msi and pygtk-2.24.0.win32-py2.7.msi from gnome website.
I install this python modules using registry and this option: Python from another location and I set my python path: C:\Python27\

>>> import gobject

>>> dir(gobject)

['GBoxed', 'GEnum', 'GError', 'GFlags', 'GInterface', 'GObject', 'GObjectMeta',

...

>>> import cairo

>>> dir(cairo)

['ANTIALIAS_DEFAULT', 'ANTIALIAS_GRAY', 'ANTIALIAS_NONE', 'ANTIALIAS_SUBPIXEL',

>>> import pygtk

>>> dir(pygtk)

['__all__', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '_

get_available_versions', '_our_dir', '_pygtk_2_0_dir', '_pygtk_dir_pat', '_pygtk

_required_version', 'fnmatch', 'glob', 'os', 'require', 'require20', 'sys']

As you can see this python modules works well.

Thursday, December 8, 2016

Noise 2D, 3D, 4D with opensimplex python module.

OpenSimplex noise is an n-dimensional gradient noise function that was developed in order to overcome the patent-related issues surrounding Simplex noise, while continuing to also avoid the visually-significant directional artifacts characteristic of Perlin noise.
Let's start with instalation:

C:\Python27\Scripts>pip install OpenSimplex

Collecting OpenSimplex

Downloading opensimplex-0.2.tar.gz

Installing collected packages: OpenSimplex

Running setup.py install for OpenSimplex ... done

Successfully installed OpenSimplex-0.2

Test some examples from official page:

C:\Python27>python

Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:19:22) [MSC v.1500 32 bit (

Intel)] on win32

Type "help", "copyright", "credits" or "license" for more information.

>>> from opensimplex import OpenSimplex

>>> tmp = OpenSimplex()

>>> print (tmp.noise2d(x=10, y=10))

-0.297251513589

>>> tmp = OpenSimplex(seed=1)

>>> print (tmp.noise2d(x=10, y=10))

-0.734782324747

>>> dir(OpenSimplex)

['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribut

e__', '__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_e

x__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '_

_weakref__', '_extrapolate2d', '_extrapolate3d', '_extrapolate4d', 'noise2d', 'n

oise3d', 'noise4d']

Let's make a image example with noise 2D:

from opensimplex import OpenSimplex

from PIL import Image



height = int(input("Enter in the map height: "))

width = int(input("Enter in the map width: "))



def main():

    simplex = OpenSimplex()

    im = Image.new('L', (width, height))

    for y in range(0, height):

        for x in range(0, width):

            value = simplex.noise2d(x , y )

            color = int((value + 1) * 128)

            im.putpixel((x, y), color)

    im.save('noise2d.png')

    im.show()

if __name__ == '__main__':

    main()

Tuesday, December 6, 2016

The python-nmap python module fail.

You can read about this python module here.

First let's install this python module.

C:\Python27>cd Scripts



C:\Python27\Scripts>pip install python-nmap

Collecting python-nmap

Downloading python-nmap-0.6.1.tar.gz (41kB)

100% |################################| 51kB 240kB/s

Installing collected packages: python-nmap

Running setup.py install for python-nmap ... done

Successfully installed python-nmap-0.6.1

About this python-nmap version you can read here.
I try to run the example source code but not of this example working.
For example I got this:

>>> nm.scan('127.0.0.1', '22-443')

{'nmap': {'scanstats': {'uphosts': '1', 'timestr': 'Wed Dec 07 08:13:01 2016', '

downhosts': '-1', 'totalhosts': '0', 'elapsed': '10.74'}, 'scaninfo': {'tcp': {'

services': '22-443', 'method': 'syn'}, 'error': [u'dnet: Failed to open device l

o0\r\nQUITTING!\r\n', u'dnet: Failed to open device lo0\r\nQUITTING!\r\n']}, 'co

mmand_line': 'nmap -oX - -p 22-443 -sV 127.0.0.1'}, 'scan': {}}

Thursday, December 1, 2016

Python 3.4 and Flask module - part 001.

This is a simple tutorial about how to install Flask python module under python 3.4 .
I think this can also working with any python 3.x versions.
Flask is a microframework for creating web applications.
First you need to install your python 3.4 and then you will get the pip script from here.
About pip you can read more on the pip webpage.
Run the pip install:

python get-pip.py

Go to into your Python folder and start the pip installation of Flask python module.
C:\Python34>cd Scripts
C:\Python34\Scripts>pip install Flask
Downloading/unpacking Flask

This is the first step. The next step is to start the default webpage.
Using python command shell you can test the Flask python module.

>>> from flask import Flask
>>>
>>> app = Flask(__name__)
>>>
>>> @app.route('/')
... def homepage():
... return "Hi there, how ya doin?"
...
>>>
>>> if __name__ == "__main__":
... app.run()
...
* Running on http://127.0.0.1:5000/
127.0.0.1 - - [26/Sep/2014 23:25:01] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [26/Sep/2014 23:25:02] "GET /favicon.ico HTTP/1.1" 404 -

As you can see is running into browser at http://127.0.0.1:5000 .
Let's put this into one python script.
You need to make a new folder called FlaskApp and go to this folder.
Make a new script named app.py with the source code you tested.
Now you can just run the script and all will be working well.
Flask looks for template files inside the templates folder.
Go to the folder FlaskApp and create a folder called templates.
Now, create a file called index.html and fill with you html source code.
To call this index.html you need to add this line of source code ino your script:
from flask import Flask, render_template and

def main():

    return render_template('index.html')

Start your python script and you will see the content of your index.html.

Wednesday, November 30, 2016

OpenGL and OpenCV with python 2.7 - part 004.

Today I will continue the series of graphics processing in OpenGL and OpenCV.
The goal of this tutorial is the download and load into the python script of a youtube video.
To do that we need another two modules python.
First, I download and install the python 2.7.12 32 bit version from the internet.

C:\Python27>python.exe

Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:19:22) [MSC v.1500 32 bit (

Intel)] on win32

Type "help", "copyright", "credits" or "license" for more information.

First update the pip tool and install numpy python module:

C:\Python27\Scripts>python -m pip install --upgrade pip

Collecting pip

Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)

100% |################################| 1.3MB 419kB/s

Installing collected packages: pip

Found existing installation: pip 8.1.1

Uninstalling pip-8.1.1:

Successfully uninstalled pip-8.1.1

Successfully installed pip-9.0.1

C:\Python27\Scripts>pip install numpy

Collecting numpy

  Downloading numpy-1.11.2-cp27-none-win32.whl (6.5MB)

    100% |################################| 6.5MB 79kB/s

Installing collected packages: numpy

Successfully installed numpy-1.11.2

The main reason to have the numpy python module: it is often used with OpenCV python module.
For OpenCV python module installation you need to see my tutorial.
After you install it, test the OpenCV python module:

C:\Python27>python.exe

Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:19:22) [MSC v.1500 32 bit (

Intel)] on win32

Type "help", "copyright", "credits" or "license" for more information.

>>> import cv2

>>> print cv2.__version__

3.0.0

Install pafy python module.
This module help you to download video from youtube but you need also the youtube-dl python module.
So let's install the youtube-dl and pafy python modules.

C:\Python27>cd Scripts

C:\Python27\Scripts>pip install youtube-dl

Collecting youtube-dl

  Downloading youtube_dl-2016.12.1-py2.py3-none-any.whl (1.5MB)

    100% |################################| 1.5MB 377kB/s

Installing collected packages: youtube-dl

Successfully installed youtube-dl-2016.12.1

C:\Python27\Scripts>pip install pafy

Collecting pafy

  Downloading pafy-0.5.2-py2.py3-none-any.whl

Installing collected packages: pafy

Successfully installed pafy-0.5.2

I make a simple python script named: get_yt.py.
The source code of this script is simple:

import os

import pafy

# Download the video

video = pafy.new('https://www.youtube.com/watch?v=O5VCjktWVD4')

print "video.title"

print video.title

print "video.rating"

print video.rating

print "video.viewcount, video.author, video.length"

print video.viewcount, video.author, video.length

print "video.duration, video.likes, video.dislikes"

print video.duration, video.likes, video.dislikes

print "video.description"

print video.description

resolution = video.getbestvideo(preftype="mp4")

print "resolution"

print resolution

input_movie = resolution.download(quiet=False)

print "input_movie"

print input_movie

print "delete movie"

os.remove(input_movie)

I used the URL of a video clip from youtube channel of Arden Cho to tested.
If you want to keep the video into your folder just remove the last line from the python script.
The result is this output:
C:\Python27>python.exe get_yt.py
video.title
Can't Help Falling in Love With You - Arden Cho
video.rating
4.99041318893
video.viewcount, video.author, video.length
10980 ardenBcho 168
video.duration, video.likes, video.dislikes
00:02:48 1665 4
video.description
Recorded this song a couple months ago when I was in Boston, this song always reminds
me of holidays and love so sharing that with you!

Guitar by Koo Chung https://youtube.com/koochung
Violin and Video editing/production by Daniel Jang https://www.youtube.com/metal
sides
Production + Keys by Tim Bongiovanni https://www.northgateproductions.net
Filmed by Rob Mark https://www.instagram.com/rmarq_

If you like my music comment and SHARE! You can also support me by buying & rati
ng my album on iTunes!! https://itunes.apple.com/us/album/my-true-happy/id592588
859

You can follow me at: SnapChat: ardencho
http://www.instagram.com/arden_cho
http://www.facebook.com/hiardencho
http://www.twitter.com/arden_cho
http://www.imdb.me/ardencho
resolution
video:mp4@1920x1080
input_movie5 Bytes [100.00%] received. Rate: [5371 KB/s]. ETA: [0 secs]
Can't Help Falling in Love With You - Arden Cho.mp4
delete movie