"""
Python integers have arbitrary precision, so large values like terabytes
fit naturally without overflow.
Terabyte sizes:
1 TiB = 2**40 = 1,099,511,627,776 bytes
1 TB = 10**12 = 1,000,000,000,000 bytes
Python style:
- Use ALL_CAPS for constants
- Use bit shifts for binary units
- Use underscores for readability
"""
# Binary terabyte (tebibyte), using a bit shift.
# 1 << 40 = 2**40 bytes.
TERABYTE_TIB = 1 << 40 # not a constant
# Decimal terabyte (SI), using a readable numeric literal.
TERABYTE_TB = 1_000_000_000_000
print("1 TiB =", TERABYTE_TIB, "bytes")
print("1 TB =", TERABYTE_TB, "bytes")
'''
run:
1 TiB = 1099511627776 bytes
1 TB = 1000000000000 bytes
'''