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Introduction to Python for Big data Analytics

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Hi everyone, if you are a fresher or experienced having lot of queries for learning which programming language. Don’t worry… we are providing a Webinar on Python for Big data Analytics. The title of the webinar is . We will be discussing the essential topics in detail and any queries can be rectified during the session.

Topics to be covered:

1. Introduction to Python 2. Python and Big Data 3. Python and Data Science 4. Key features of Python and their usage in Business Analytics 5. Business Analytics with Python – Real world Use Cases

Why Python?

Python is a preferred choice among professionals looking into Big Data Analytics and its feature of being a general-purpose, high level programming with a gradual learning curve makes it popular as compared to other programming languages.

Click here to obtain Source !If you have any queries?..Mention it in the comment section, we will clarify you!

 

 

 

 

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Brief Overview of Python

Introduction

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Welcome! Are you completely new to programming? If not then we presume that you will be looking for information about why and how to get started with python. Fortunately you are a fresher or experienced programmer in any programming language would pick up Python very quickly. It’s easy for beginners use and learn, so jump in! Join Python Training in Chennai at Besant Technologies to Learn from here and finally remove ‘L’ from it!

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Introduction to strings in python

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In Python, the strings should be created by simply enclosing the characters in quotes.Strings are the ordered blocks of text that are enclosed in single or double quotations. 

Built-in String Methods

  • capitalize() – Capitalize the first letter of string.
  • count(str, beg= 0, end=len(string)) – Count how many times  the str occurs in string.
  • encode(encoding=‘UTF-8’,errors=‘strict’) – Return the encoded string version of string; on error, default raises a ValueError, unless the error is given with ‘ignore’ or ‘replace’.
  • decode (encoding=‘UTF-8’, errors=‘strict’) – Decode the string using the codec registered for Encoding. Encoding defaults to the default string function.
  • index(str, beg=0, end=len(string))- Same as find(), but it raises an exception if str is not found.
  • max(str)- Return the max alphabetical character from the string str.
  • min(str)- Return the min alphabetical character from the string str.
  • replace(old, new [, max])- Rse
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Python for DataScience

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Python is the selection of information researchers. In nowadays python plays an important role to do their everyday exercises, as it has a differing scope of open-source libraries, and everything is free. It involves several interrelated activities, such as:

  • Accessing and manipulating data
  • Computing statistics
  • Creating visual reports on that data
  • Configuring predictive and explanatory models
  • Evaluating the models based on the additional data
  • Integrating the models into the production systems

If a data scientist wants to do some ad hoc analysis on data, he doesn’t write a Java code; the reason is java is too complicated for a data scientist to start programming. Consequently, Pig and Hive were developed, however additionally we have Python in parallel, wherein you don't need to compose a great deal of lines of code.

SciPy

SciPy (pronounced as “sigh pie”) is Scientific Python which empowers the scientific analysis. Presently, how is it done in com

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Introduction to python IDE

 

Python IDE (Integrated Development Environment) is a code editor, which allows editing of code making use of a series of peripheral components and attachments. The code editor we are using which almost gives the same result.

Features of Python IDE

 

  • It has  an ordinary text-editor
  • It offers a variety of language with specific shortcut editing functions.
  • Very fast and comfortable to use
  • Python is also an interpreter.
Downloading PyCharm 

The Free Community Edition of PyCharm can be downloaded from the link below:

http://www.jetbrains.com/pycharm/download/

Using the Interpreter
  • In addition to being a programming language, Python is also an interpreter. It reads other Python programs and commands, and executes them.
  • Python programs are compiled automatically before being scanned by the interpreter. The hidden scanning process makes Python faster than a pure interpreter.
  • Once you’re inside Python, you can type commands at your own will.
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Python Database Access

Python Database Access

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The Python standard for database interfaces is the Python DB-API. Most Python database interfaces adhere to this standard. Python Database API supports a wide range of database servers such as −

·        GadFly

·        MySQL

·        MySQL

·        PostgreSQL

·        Microsoft SQL Server 2000

·        Informix

·        Interbase

·        Oracle

·        Sybase

The DB API provides a minimal standard for working with databases using Python structures and syntax wherever possible. The MySQLdb module explains all concepts using MySQL. This API includes the following:

·        Importing the API module.

·        Acquiring a connection with the database.

· Issuing SQL statements and stored procedures.

·        Closing the connection.

What is MySQL db?

MySQLdb is an interface for connecting to a MySQL database server from Python which implements the Python Database API v2.0 and it is built on the top of the MySQL C API.

 

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Python Network Programming

Python Network Programming

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Python provides two levels of access to network services. At a low level, we can access the basic socket support in the underlying operating system, which would allows to implement clients and servers for both connection-oriented and connectionless protocols.

Python also has libraries that would provide higher-level access to specific application-level network protocols, such as FTP, HTTP, and so on.

What is Sockets?

Sockets are the endpoints of a bidirectional communications channel. Sockets may communicate within a process, between processes on the same machine, or between processes on different continents.

Sockets would be implemented over a number of different channel types such as Unix domain sockets, TCP, UDP, and so on. The socket library provides specific classes for handling the common transports as well as a generic interface for handling the rest.

Socket Module

To create a socket, we must use the socket.socket() function available in socke

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Benefits of Python

Benefits of Python

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Python is a dynamic object-oriented programming language that would be compared with Java and Microsoft's .NET-based languages as a general-purpose substrate for many kinds of software development. It offers strong support for integrating with other technologies, higher programmer productivity throughout the development life cycle, and is particularly well suited for large or complex projects with changing requirements. Python is the most rapidly growing open source programming language. According to InfoWorld its user base is nearly doubled in 2004, and currently includes 14% of all programmers. Python is being used in mission critical applications in the world's largest stock exchange, forms the basis for high end newspaper websites, run on millions of cell phones, used in industries as diverse as ship building, feature length movie animation, and air traffic control.Python is available for most operating systems, including Windows, UNIX, Linux, and Mac OS.

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Utilization of Python Programming

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Python in Linux admin

Python is a must learn programming language for Linux admin. Almost more than 20 percent of Linux job require Python programming and also Software developers have a great asset to mention on their CV.

Python in Automation testing professionals

For software testing professional Python skills are must which is required to write test cases and run to check software performance, build test automation framework and also requirement for mobile and device testing professionals.

Python in Database programming

Used in developing Database and rectifies the error, add efficiency to work and improves the productivity of Database developers.

Python in Develop Complex website and systems

It has an own frameworks, Django which is MVC based framework used in developing complex and large websites specially used to develop social networking sites. Most popular Social sites like Facebook and question answer website Quora has been developed using Python programming language.

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Python Keywords and Identifiers

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Keywords in Python

Keywords in python are the reserved words that cannot be used as variable name or function name or ordinary identifiers; they must be spelled exactly as they are written.

Explanation of Keywords

print – Used to print to console.

while – Used for controlling the flow of the program.

for – Used to iterate over times of a collection in order that they present.

break – Used to interrupt the loop or cycle when they are needed.

continue – Used to interrupt the current cycle without jumping out of the whole cycle.

if – Used to determine which statements are to be executed.

elif – This stands for else if. In this the first test evaluates to false then it continues with the next one.

else – It is an optional one, the else keyword is executed, unless the condition is true.

is – Used for testing the object identity.

not – This is used to negates the Boolean value.

and -  By using this all conditions in the Boolean expressions are met.

or – By using this atleast

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