python syntax | learn python | python tutorial

Execute Python Syntax

As we learned in the previous page, Python syntax can be executed by writing directly in the Command Line(cmd):
>>> print("Hello, World!")
Hello, World!
Or by creating a python file in the server, using the .py file extension, and running it in the Command Line:
C:\Users\Your Name>python myfile.py

Python Indentations

Where in others programming languages the indentation in code is for readability only, in Python the indentation is very important.
Python uses indentation to indicates 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 indentation:

Example

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


Comments

Python has the commenting capability for the purpose of in-code documentation.
Comments are 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!")
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Docstrings

Python also has extended documentation capability, called docstrings.
Docstrings can be one line, or multiline.
Python uses the 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 »

Test Yourself With Exercises

Exercise:

Now Insert missing part of the code below to output "Hello World".
("Hello World")



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