Hello, World!

In Python, printing to the terminal takes exactly one line. No imports, no class definitions, no semicolons. The print() function outputs text (or any value) to standard output and appends a newline automatically.

print("Hello, World!")

Save that as hello.py and run it with python3 hello.py. That's it — you're a programmer. print() is more flexible than it looks: it accepts multiple arguments and lets you customize the separator and line ending.

# Multiple arguments — joined with a space by default
print("Hello,", "World!")            # Hello, World!

# Custom separator
print("2024", "01", "15", sep="-")   # 2024-01-15

# No newline at end
print("Loading", end="...")
print("done!")                        # Loading...done!

# Print numbers and booleans directly
print(42)
print(3.14159)
print(True)