![Features of Python cont. (simplicity)
// Hello World Program in Java
class HelloWorld
{
public static void main(String args[])
{
System. out. println(" Hello World!");
}
}
# sample code in Python
print(“Hello World”)
9](https://image.slidesharecdn.com/programmingfordatascienceinpython-210307110118/85/Programming-for-data-science-in-python-9-320.jpg)
Programming for data science in python
- 1. Programming for Data Science in Python Dr. Ummesalma M Assistant Professor CHRIST (Deemed to be University) Bengaluru-29
- 3. Timeline of Programming Languages 3
- 4. What’sWorth to be known about Python? 1991 4 1994 2000 2008
- 5. What Can Python Do? 5 Wait! I can do all these things using other programming languages too! Then why Python? Python can be used for
- 6. Salient Features of Python Even though there are many languages Salient features of Python make it different from others • Interpreted, very-high-level programming language. • Supports a multitude of programming paradigms. • OOP, functional, procedural, logic, etc. • General purpose. • Very comprehensive standard library includes numeric modules, crypto services, OS interfaces, networking modules, GUI support, development tools, etc. 6
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- 8. Features of Python cont. (simplicity) // HelloWorld Program inC #include <stdio.h> Void main() { printf(“HelloWorld! n”); } // HelloWorld Program inC++ #include <iostream.h> int main() { cout << "Hello World!“<<endl; return 0; } 8
- 9. Features of Python cont. (simplicity) // Hello World Program in Java class HelloWorld { public static void main(String args[]) { System. out. println(" Hello World!"); } } # sample code in Python print(“Hello World”) 9
- 10. VidTime Java vs Python 10
- 13. Python 2x vs Python 3x ▪ F1: Division operator Eg. -7 / 5 ▪ F2:I/O functions ▪ F3: str type ▪ F4: xrange() saves memory but doesn’t support slicing ▪ F5: Error Handling try: trying_to_check_error except NameError, err: print err, 'Error Caused' # Would not work in Python 3.x ▪ F6: modules Feature (Python2x) (Python3x) F1 Results in -2 Results in -1.4 F2 raw_input() print “Hello World” input() print (“Hello World”) F3 ASCII UNICODE F4 xrange() available xrange() UNavailable F5 as not required Comma replacedby as F6 Less modules More modules 13
- 14. 3 Ways of Running a Python Program ▪ Python Shell: An interactive interpreter. It is pre available in Linux and Mac OS X ▪ Script mode on cmd ▪ IDE:Atom, IDLE , Jupyter, Spyder, etc. .py Python Shell IDE Script mode 14
- 15. How Famous is Python?WatchThis 15
- 16. How Python is relevant to data science? What type of data Python supports for data science? Whom to follow? Which tools/sites to refer? Data Science & Python 16
- 17. Python & Data ScienceApplications All 360 17
- 18. Python Packages Useful for Data Science 18
- 19. Who is in favor of Python? 19
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- 21. Whom to Follow? Wes McKinney. Creator of pandas, the most widely-used Python library for data analysis. Author of Python for Data Analysis. Senior Vice President and Software Architect at Two Sigma. Hilary Mason. Founder of Fast Forward Labs. Data Scientist in Residence at Accel. Founder of HackNY and co-host of DataGotham Jake VanderPlas. Author of Python Data Science Handbook. Senior Data Science Fellow and Director of Research at the University of Washington's eScience institute. https://mode.com/blog/python-influencers/ 21
- 22. Python:When to Use & when Not? PROS CONS Development requirement Scope 22
- 23. PROS of Python More Pros thanCons 23
- 24. CONS of Python • Python is interpreted,so it's much slower than its counterparts. • Weak in mobile computing, hence not used much in app development • Since Python is dynamic, more errors show up at run-time • Absence of commercial support 24
- 25. Programmers Description Example System Programmers The system programmerinstalls, customizes, and maintains the operatingsystem, and also installsor upgrades products that run on the system. •CAD Engineer •System Engineers •DevOps Developer •Software Developer Web Programmers A web developer is a programmerwho engaged in, the development of World WideWeb applications,or applicationsthat are run over HTTP, CSS OR HTML from a web server to a web browser. •Frontend Developer •BackendDeveloper •Full stack web developer Types of Computer Science Programmers 25
- 26. Programmers Description Example Game Programmers A game programmer is a programmerwho develops codebasesfor video games or related software, such as game development tools.Game programminghasmany specializeddisciplines,allof which fallunder the “game programmer”. •Game Designer •Audio Engineer •Lead-Programmer(Games) •Animators(Games) ApplicationProgrammers The application programmeris a programmerwho is responsiblefordesigning and testing program logic, codingprograms,program documentationand preparationof programs for computer operations. •SDE1 •SDE2 •Software Engineer All Rounder Capable of doingall tasks •Nerds •Scientists 26
- 27. JobOpportunities worldwide after learning Python 27
- 28. Scope of Python in India and worldwide? ImageCourtesy: www.quora.com https://www.3ritechnologies.com/py thon-developer-salary-in-india/ 28
- 29. Poem on Python Poem byTim Peters 29
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