Python Conversion

python_conversion.md

Python Number Conversion Chart

From	To	Expression
45	"45"	str(data)
45	"101101"	bin(data)
45	"2D"	hex(data)
45	"\x00\x00\x00\x2d"	struct.pack('!i', data)
"45"	45	int(data)
"45"	"3435"	data.encode('hex')
"101101"	45	int(data, 2)
"2D"	45	int(data, 16)
"2D"	"\x2d"	binascii.unhexlify(data) or data.decode('hex')
"\x00\x00\x00\x2d"	45	struct.unpack('!i', data)[0]
"\x2d"	"2D"	binascii.hexlify(data)
"3435"	"45"	data.decode('hex')

Comments are welcome here or in my original blog post regarding this table.

@Niggler If you don't know what base it's in, you can specify a base of 0:
int('055', 0) -> 45 or int('0x55', 0) -> 85

I'm not sure what to do with "\x00\x00\x00\x2d". What is this encoding (and why would you want it)?

It's a 4-byte int in the network byte order.

@chris-martin, @havenwood to give you a real-world example for the hex encoding ("45" => "3435"): http://books.xmlschemata.org/relaxng/ch19-77143.html

this is quite inefficient, I know, but you sometimes need it for backwards compatibility.