Summary of Operators in Python
Types of Arithmetic Operators in Python
| Symbol | Description | Return Value |
| + | Addition | Varies depending on the data types |
| - | Subtraction | Varies depending on the data types |
| * | Multiplication | Varies depending on the data types |
| / | Division | Returns a floating-point value |
| // | Floor Division | Returns an integer value |
| % | Modulus | Returns a floating-point value |
| ** | Exponentiation | Varies depending on the data types |
| and | Logical AND | Returns True or False |
| or | Logical OR | Returns True or False |
| < | Less than | Returns True or False |
| \> | Greater than | Returns True or False |
| <= | Less than or equal to | Returns True or False |
| \>= | Greater than or equal to | Returns True or False |
| \== | Equal to | Returns True or False |
+, -, , /, //, %, *, <, >, <=, >= Table
| A | B | Result |
| int | int | int A + B result |
| int | float | float A + B result |
| int | bool-True | int A + 1 result |
| int | bool-False | int A + 0 result |
| int | None | TypeError |
| int | string | TypeError |
| float | bool-True | float A + 1 result |
| float | bool-False | float A + 0 result |
| float | None | TypeError |
| float | string | TypeError |
| bool | None | TypeError |
| bool | string | TypeError |
| None | string | TypeError |
In the early days of computer generation and the inception of programming languages, 1 represented True, and 0 represented False.
\== Table
| A | B | Result |
| int | int | Boolean result |
| int | float | Boolean result |
| int | bool | Boolean result |
| int | None | Boolean result |
| int | string | Boolean result |
| float | bool | Boolean result |
| float | None | Boolean result |
| float | string | Boolean result |
| bool | None | Boolean result |
| bool | string | Boolean result |
| None | string | Boolean result |
Unlike Java, this doesn't compare classes. It compares values. Since all are objects, these comparisons are possible.
and, or Truth Tables
| A | B | and | or |
| False | False | False | False |
| False | True | False | True |
| True | False | False | True |
| True | True | True | True |
As shown in the table above, "and" and "or" are operations on True and False.
When different data types are used, the "or" operation returns the value of B, while the "and" operation returns the value of A.