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Introduction to python
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- 2. Content in thisvideo… • Introduction of Python • Overview of Python • Organizations using Python • Python Applications in Various Domains • Python Installation
- 3. Introduction of Python •Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. • It was created by Guido van Rossum during 1985- 1990. • Like Perl, Python source code is also available under the GNU General Public License (GPL).
- 4. Overview of python •Python is Interpreted • Python is Interactive • Python is Object-Oriented • Python is a Beginner's Language
- 5. Features of Python Easy-to-learn Easy-to-read Easy-to-maintain A broad standard library Interactive Mode Portable Extendable Databases GUI Programming Scalable
- 6. Organizations using python •Google: server side official language • Facebook: third most popular language at the social media giant • Instagram: running the world’s largest deployment of the Django web framework, which is written entirely in Python. • Spotify: music streaming giant is a huge proponent of Python • Netflix: Netflix uses Python in a very similar manner to Spotify. • Dropbox: cloud based storage system uses Python in its desktop client. • Reddit: Software backbone
- 7. Python applications in variousdomains • Web Development • Game Development • Machine Learning and Artificial Intelligence • Data Science and Data Visualization • Desktop GUI • Web Scraping Applications • Business Applications • Audio and Video Applications • CAD Applications • Embedded Applications
- 8. Installation • Presently theversion in use is Python 3.x • But you can also use Python 2.x ,like 2.7..etc .This depends on your system and your interest. •To download the Python interpreter go to the site http://www.python.org/downloads and click on the suitable icon • From the website you can download the suitable version based – OS (whether the OS is Windows ,MacOS or Linux) – the Processor 32 bit or 64 bit. • For ex: if you are using 64-bit Windows system ,you are likely to download Windowsx86-64MSI Installer. • click on the link and download and install the Python Interpreter.
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- 14. Step-6 • Click on“start menu” • Go to “Programs” • Check for “Python 3.7” • Click on “IDLE(Python 3.7.4 64-bit)”
- 15. • This Pythonshell allows us to use Python in interactive mode. • The shell waits for a command from the user ,executes it and returns the result.
- 16. Python Interfaces • IDLE– a cross-platform Python development environment • PythonWin – a Windows only interface to Python • Python Shell – running 'python' from the Command Line opens this interactive shell • For the exercises, we'll use IDLE, but you can try them all and pick a favorite 16
- 17. IDLE •The only thingto do is that we have to launch the IDLE program . • While the Python shell allows the user to work in interactive mode, the Idle allows to write the code and save it with .py extension. For Ex: myProg_py. • This file is known as Python script. • Once the program is saved ,it can be executed either by clicking the Run module or F5. • If there are no errors you observe the results.