Code Blocks

Unlike other languages that use a pair of open and close brackets {}, Python use indentation for code blocks. So formatting your code correctly is important.

This code:
# Declare a list of pin names
pin_names = ["resetn", "Oclk"]

# Iterate through all
for pin in pin_names:
    print("Pin name: " + pin)  # Inner code block is indented
Prints this result to the Python console:
Pin name: resetn
Pin name: Oclk