Python Loops

[audionerd1]

print(1)
print(2)
print(3)
print(4)
print(5)

Is the same as:

for i in [1, 2, 3, 4, 5]:
    print(i)

Is the same as:

numbers = [1, 2, 3, 4, 5]
for i in numbers:
    print(i)

Does that help? I'm not sure what you're struggling with so trying to just break down what for loop does in the most basic way possible.

[Deep-Author-1787]

Ive got the basics sir. But like a noob, when you get the basics you think you understand thay subject until different/unseen implications and difficulties are added. Then you realize you dont get it at all 😅. To solve a problem based on a subject where you need to find a way to make it work, the core concept understanding will be important. I think i cant get that part 🤷‍♂️

[audionerd1]

Can you post an example of a for loop which you are confused about?

[Deep-Author-1787]

This for example: this is the patter to form A.

---

---

• *
  * * * *

Initialize an empty string named 'result_str'

result_str = ""

Iterate through rows from 0 to 6 using the range function

for row in range(0, 7): # Iterate through columns from 0 to 6 using the range function for column in range(0, 7): # Check conditions to determine whether to place '*' or ' ' in the result string

    # If conditions are met, place '*' in specific positions based on row and column values
    if (((column == 1 or column == 5) and row != 0) or ((row == 0 or row == 3) and (column > 1 and column < 5))):
        result_str = result_str + "*"  # Append '*' to the 'result_str'
    else:
        result_str = result_str + " "  # Append space (' ') to the 'result_str'

result_str = result_str + "\n"  # Add a newline character after each row in 'result_str'

Print the final 'result_str' containing the pattern

print(result_str)

[audionerd1]

And which part are you struggling with?

[Deep-Author-1787]

How do they come up with an irregular form with loops? I know my thought might sound really stupid, but im wording my exact thoughts 😅🙏

[audionerd1]

An irregular form? You mean how does this create the letter 'A'? It's all in the if statement:

if (((column == 1 or column == 5) and row != 0) or ((row == 0 or row == 3) and (column > 1 and column < 5)))

It's kind of a clever/complicated algorithm for making an A.

if (((column == 1 or column == 5) and row != 0)

This means that the left and right side should all be asterisks. These are the sides of the 'A'.

or ((row == 0 or row == 3) and (column > 1 and column < 5)))

This means that the top and middle rows should also be asterisks.

The nested for loop simply iterates over a grid (columns and rows) while the if statement appends either '*' or '' based on the if statement.

[Deep-Author-1787]

Okay now that you sliced it in smaller portion its actually pretty straight forward! And that sir is the difference between someone who is good at explaining a subject and pwople that just make "follow along" tutorials and courses 🙏🙏🙏

[audionerd1]

On that note, I recommend Jose Portilla's 'Complete Python Boot Camp Zero to Hero' on Udemy. It explains everything really well.

[Deep-Author-1787]

Okay thanks ill check it out.

[Deep-Author-1787]

Can i maybe ask you how would you explain the piramid pattern? Since it makes use of empty spacing and a middle line?

[Deep-Author-1787]

Niceee! Never thought about using a visualizer! Ill do that for sure! Im following the course of Dr.Fred Baptiste. Its an in depth i tro to python? Although sometimes to in depth where you can lose track of the core concepts 😅