Syntax

ZPy uses Python-like syntax that is easy to read and write.

Comments

# This is a single-line comment

# Comments can appear anywhere
x = 10  # inline comment

Variables

Variables are dynamically typed and don't need declarations:

name = "ZPy"        # string
version = 0.1       # float
count = 42          # int
active = true       # bool
items = [1, 2, 3]   # list
data = {"a": 1}     # dict

Indentation

Like Python, ZPy uses indentation to define blocks:

if x > 0:
    print("positive")
    if x > 10:
        print("large")

Use 4 spaces per indentation level (recommended).

Statements

Multiple statements on separate lines:

x = 1
y = 2
z = x + y

Statements can be separated by newlines (no semicolons needed).

Identifiers

Valid identifiers:

• Start with a letter or underscore
• Can contain letters, digits, and underscores
• Case-sensitive

my_var = 1
MyVar = 2      # different from my_var
_private = 3

Reserved Words

and       break    continue  def      elif
else      false    for       if       in
len       none     not       or       pass
range     return   true      while

Expressions

# Arithmetic
x = 1 + 2 * 3      # 7
y = (1 + 2) * 3    # 9

# String concatenation
msg = "Hello" + " " + "World"

# List access
items = [1, 2, 3]
first = items[0]   # 1

# Dict access
data = {"name": "ZPy"}
name = data["name"]

Next Steps

• Data Types - Learn about available types
• Operators - Operators and expressions
• Control Flow - Conditionals and loops