One of the most important areas you should have a focus on when you are preparing for the interview for position of python developer, is a pattern printing program using python. I don’t think that in an interview if your recruiter is recruiting you as a software developer/software engineering profile will not ask to write a program to print given pattern (maybe in some interview not).
Below I have collected the list if most important and most frequently asked python pattern program and also I have provided their program in python programming. Solution contains nested for loops and if else block etc.
Different Types of Pyramid Patterns

Left Half Pyramid Pattern Using *

Right Inverted Half Pyramid Pattern Using *

Left Half Inverted Pyramid Pattern Using *

Right Half Pyramid Pattern Using *

Half Pyramid Pattern

Inverted Half Pyramid Pattern

Left Half Pyramid Pattern Using Numbers

Left Half Inverted Pyramid Pattern Using Numbers

Inverted Pyramid Pattern Using Numbers
Click Here To See Pyramid Pattern Program In Python
Different Types of Diamond Patterns

Right Half Diamond Pattern

Left Half Diamond Pattern

Full Diamond Pattern
Click here To See Diamond Pattern Program In Python
Pascal’s Triangle

Pascal’s Traingle
Click here To See Pascal’s Triangle Program In Python
Print Floyd’s Triangle

Print Floyd’s Triangle
Click here To See Floyd’s Triangle Program In Python
Different Types of Rhombus Patterns

Left inclined Rhombus Pattern

Right Inclined Rhombus Pattern
Click here To See Rhombus Pattern Program In Python
Different Types of Rectangle Patterns

Hollow Rectangle

Solid Rectangle
Click here To See Rectangle Pattern Program In Python
Different Types of Patterns Using Star And Hyphen

Left inclined Rhombus Pattern

Right Half Diamond Pattern Using Star and Hyphen

Diamond Pattern Using Star and Hyphen

Half Diamond Using Star Hyphen

Inverted Half Diamond Using Star Hyphen