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Programming With Anuj

What is Python

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Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. Its high-level built in data structures, combined with dynamic typing and dynamic binding, make it very attractive for Rapid Application Development, as well as for use as a scripting or glue language to connect existing components together. Python's simple, easy to learn syntax emphasizes readability and therefore reduces the cost of program maintenance. Python supports modules and packages, which encourages program modularity and code reuse. The Python interpreter and the extensive standard library are available in source or binary form without charge for all major platforms, and can be freely distributed. Often, programmers fall in love with Python because of the increased productivity it provides. Since there is no compilation step, the edit-test-debug cycle is incredibly fast. Debugging Python programs is easy: a bug or bad input will never cause a segmentation fault. Instead,
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Python Comments ...

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Comments can be used to explain Python code. Comments can be used to make the code more readable. Comments can be used to prevent execution when testing code. Creating a Comment Example #This is a comment print("Hello, World!") Comments can be placed at the end of a line, and Python will ignore the rest of the line: print("Hello, World!") #This is a comment A comment does not have to be text that explains the code, it can also be used to prevent Python from executing code: Example #print("Hello, World!") print("Cheers, Mate!") Multi Line Comments Python does not really have a syntax for multi line comments. To add a multiline comment you could insert a # for each line: Example #This is a comment #written in #more than just one line print("Hello, World!")
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Python Syntax

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Execute Python Syntax As we learned in the previous page, Python syntax can be executed by writing directly in the Command Line:
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How to Install Python

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To check if you have python installed on a Windows PC, search in the start bar for Python or run the following on the Command Line (cmd.exe): C:\Users\Your Name>python --version To check if you have python installed on a Linux or Mac, then on linux open the command line or on Mac open the Terminal and type: python --version If you find that you do not have python installed on your computer, then you can download it for free from the following website: https://www.python.org/ (Accrotding to your operating system and Bit system.) Start Programming In Python Python is an interpreted programming language, this means that as a developer you write Python (.py) files in a text editor and then put those files into the python interpreter to be executed. it means that the extension of all the files is only .py. The way to run a python file is like this on the command line: HelloWorld In Python C:\Users\Your Name>python helloworld.py Where "helloworld.py" is the name of y
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