Integer: a number that is positive or negative 1, 2, -7, 17, etc.
Float: ( including double) a number with a decimal 1.0, 3.2, 3.14159 etc.
Boolean : a value of “True” or “False”
String: text and numbers. Strings must have single or double quotation marks, e.g. “Hello World”, ‘Hello world’, “7.34”, ‘3.14159’. Note that when numbers have quotation marks it is a string and not a float or integer. Note that boolean values are an exception and do not have quotation marks.
List values: These are ordered collections of objects, enclosed in square brackets, such as [1, 2, 3], ["apple", "banana", "cherry"], or [1, "apple", True].
Tuple values: These are ordered collections of objects, enclosed in parentheses, such as (1, 2, 3), ("apple", "banana", "cherry"), or (1, "apple", True).
Set values: These are unordered collections of unique objects, enclosed in curly braces, such as {1, 2, 3}, {"apple", "banana", "cherry"}, or {1, "apple", True}.
Dictionary values: These are collections of key-value pairs, enclosed in curly braces, such as {"name": "Alice", "age": 30}, {"fruit": "apple", "color": "red"}, or {1: "one", 2: "two"}.
Arithmetic Operators
+ addition
- subtraction
* multiplication
/ division
// floor division
% modulo division
** exponentiation
== equality (represented by two equal signs)
< less than
> greater than
<= less than or equal to
>= greater than or equal to
!= not equal to
= assignment
+= in-place addition operator
-= in-place subtraction operator
*= in-place multiplication
/= in-place division operator
Implementation:
|
x=3 y=4 print(x+y) 7 |
a=15 a *=3 print(a) 35 |
a=15 a+=5 print(a) 20 |
x=15 x/=3 print(x) 5 |
Logical Operators
Logical Operators are used to combine conditional states and these often use the comparison operators return the Booleans TRUE of FALSE
AND : Combines two conditions
OR : Disjoins two conditions
NOT : Excludes subsequent condition
Implementation Example:
age = 25
salary = 50000
is_retired = FALSE
age = 67
salary = 30000
is_retired = False
if (age >= 18 and age <=65) and (salary >= 30000 or is_retired == True):
print("Eligible for a loan")
else:
print("Not eiligible for a loan")
print(): Used to output text to the console.
len(): Used to return the length of an object, such as a string or list.
type(): Used to return the data type of an object.
int(), float(), str(): Used to convert a value to a specific data type.
range(): Used to generate a sequence of numbers.
input(): Used to get user input from the console.
sorted(): Used to sort a list.
sum(): Used to calculate the sum of a list or other iterable.
max(), min(): Used to return the maximum or minimum value in a list or other iterable.
abs(): Used to return the absolute value of a number.
round(): Used to round a number to a specified number of decimal places.
A more detailed list can be found here: https://docs.python.org/3/library/functions.html
