#format

Description: Format a value (calls the object's __format__ method).

def format(value, format_spec=''):
    '''
    Format a value using format_spec.

    :param value: A variable
    :param format_spec: Format specification
    :return: The formatted value
    '''

Example:

# Numeric formatting
print(format(3.14159, ".2f"))  # Output: '3.14'
print(format(1000000, ","))    # Output: '1,000,000'

# Alignment and padding
print(format("hello", "^10"))   # Output: '  hello   ' (center-aligned, width 10)
print(format(42, "05d"))        # Output: '00042' (zero-padded, width 5)

# Base conversion
print(format(10, "b"))          # Output: '1010' (binary)
print(format(255, "x"))         # Output: 'ff' (lowercase hexadecimal)
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#Format Specification

format_spec ::= [options][width][grouping]["." precision][type]
options     ::= [[fill]align][sign]["z"]["#"]["0"]
fill        ::= <any character>
align       ::= "<" | ">" | "=" | "^"
sign        ::= "+" | "-" | " "
width       ::= digit+
grouping    ::= "," | "_"
precision   ::= digit+
type        ::= "b" | "c" | "d" | "e" | "E" | "f" | "F" | "g"
                | "G" | "n" | "o" | "s" | "x" | "X" | "%"

#Alignment Options

#Sign Options

#Separator Options

#Integer Type Options

#Floating Point Type Options