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🔥Execute Python Syntax
🔥Python Indentation
🔥Python Variables
🔥Python Comments
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:\Users\Your Name>python myfile.py
Python Indentation
Indentation refers to the spaces at the beginning of a code line.
Where in other programming languages the indentation in code is for readability only, the indentation in Python is very important.
Python uses indentation to indicate a block of code.
EXAMPLE
if 5 > 2:
print(“Five is greater than two!”)
OUTPUT:
Five is greater than two!
Python will give you an error if you skip the indentation:
EXAMPLE
syntax Error:
if 5 > 2:
print(“Five is greater than two!”)
OUTPUT:
File “indentation_test.py”, line 2
print(“Five is greater than two!”)
^
IndentationError: expected an indented block
The number of spaces is up to you as a programmer, but it has to be at least one.
EXAMPLE:
if 5 > 2:
print(“Five is greater than two!”)
if 5 > 2:
print(“Five is greater than two!”
OUTPUT:
Five is greater than two!
Five is greater than two!
You have to use the same number of spaces in the same block of code, otherwise Python will give you an error:
EXAMPLE
syntax Errors
if 5 > 2:
print(“Five is greater than two!”)
print(“Five is greater than two!”)
OUTPUT:-
File “indentation2_error.py”, line 3
print(“Five is greater than two!”)
^
IndentationError: unexpected indent
Python Variables
In Python, variables are created when you assign a value to it:
Example
Variables in Python:
x = 5
y = “Hello, World!”
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LEARN PYTHON 3 