bool_
Boolean (True or False) stored as a byte
int_
Default integer type (same as C long; normally either int64 or int32)
intc
Identical to C int (normally int32 or int64)
intp
Integer used for indexing (same as C ssize_t; normally either int32 or int64)
int8
Byte (–128 to 127)
int16
Integer (–32768 to 32767)
int32
Integer (–2147483648 to 2147483647)
int64
Integer (–9223372036854775808 to 9223372036854775807)
uint8
Unsigned integer (0 to 255)
uint16
Unsigned integer (0 to 65535)
uint32
Unsigned integer (0 to 4294967295)
uint64
Unsigned integer (0 to 18446744073709551615)
float_
Shorthand for float64
float16
Half-precision float: sign bit, 5 bits exponent, 10 bits mantissa
float32
Single-precision float: sign bit, 8 bits exponent, 23 bits mantissa
float64
Double-precision float: sign bit, 11 bits exponent, 52 bits mantissa
complex_
Shorthand for complex128
complex64
Complex number, represented by two 32-bit floats
complex128
Complex number, represented by two 64-bit floats