Python Syntax

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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:





>>> print("Hello, World!")

Hello, World!



Or by creating a python file on the server, using the .py file extension, and running it in the Command Line:





C:UsersYour Name>python myfile.py




Python Indentations



Where in other programming languages the indentation in code is for readability
only, in Python the indentation is very important.


Python uses indentation to indicate a block of code.




Example



if 5 > 2:
 
print("Five is greater than two!")

Run example »


Python will give you an error if you skip the indentation:




Example



if 5 > 2:

print("Five is greater than two!")

Run example »






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Comments



Python has commenting capability for the purpose of in-code documentation.


Comments start with a #, and Python will render the rest of the line as a comment:



Example


Comments in Python:



#This is a comment.

print("Hello, World!")

Run example »


Docstrings


Python also has extended documentation capability, called docstrings.


Docstrings can be one line, or multiline.


Python uses triple quotes at the beginning and end of the docstring:



Example


Docstrings are also comments:



"""This is a

multiline docstring."""

print("Hello, World!")

Run example »




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