Python Tutorials
Python Introduction
Python Get Started
Python Syntax
Python Comments
Python Variables
Python Data Types
Python Casting
Python Strings
Python Booleans
Python Operators
Python Lists
Python Tuples
Python Sets
Python Dictionaries
Python If...Else
Python While Loops
Python For Loops
Python Functions
Python Lambda
Python Arrays
Python Classes/Objects
Python Inheritance
Python Iterators
Python Scope
Python Modules
Python Dates
Python Math
Python JSON
Python RegEx
Python PIP
Python Try..Except
Python User Input
Python String Formatting
Python File Handling
Python File Handling
Python Read Files
Python Create/Write Files
Python Delete Files
Python Modules
Python Numpy
Python Pandas
Python SciPy
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Python Syntax
Execute Python Syntax
As we learned on the previous page, Python syntax can be done by typing directly into 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 Command Line:
C:\Users\Your Name>python myfile.py
Python Indentation
Undo refers to the spaces at the beginning of the code line.
Where in some languages the indent editing code is readable, retrieving in Python is very important.
Python uses indentation to display a code block.
Example
if 5 > 2:
print("Five is greater than two!")
Python will give you an error if you skip over:
Example
Syntax Error:
if 5 > 2:
print("Five is greater than two!")
The number of posts is up to you as an editor, but it should be at least one.
Example
if 5 > 2:
print("Five is greater than two!")
if 5 > 2:
print("Five is greater than two!")
You must use the same number of spaces in the same code block, otherwise Python will give you an error:
Example
Syntax Error:
if 5 > 2:
print("Five is greater than two!")
print("Five is greater than
two!")
Python Variables
In Python, a variable is created when you assign value to it:
Example
Variables in Python:
x = 5
y = "Hello, World!"
Python has no dynamic declaration command.
Comments
Python has the ability to comment for coding purposes.
Comments start with #, and Python will provide the whole line as a comment:
Example
Comments in Python:
#This is a comment.
print("Hello, World!")