Create xxHash.py

[sparshmanni]

Describe your change:

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
• Documentation change?

[algorithms-keeper]

Click here to look at the relevant links ⬇️

🔗 Relevant Links

Repository:

• Contributing guidelines
• Project Euler solution guidelines

Python:

• Formatted string literals (f-strings)
• Type hints
• doctest
• unittest
• pytest

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[algorithms-keeper]

Please provide return type hint for the function: xxhash. If the function does not return a value, please provide the type hint as: def function() -> None:

Please provide type hint for the parameter: data

Please provide type hint for the parameter: seed

[cclauss]

Suggested change

	def xxhash(data, seed=0):
	def xxhash(data: bytes, seed: int = 0) -> int:

[cclauss]

DRY: Don't repeat yourself

Suggested change

	:param data: Data to be hashed (bytes)
	:param seed: Seed value for the hash (integer)
	:return: xxHash hash value (integer)
	:param data: Data to be hashed
	:param seed: Seed value for the hash
	:return: xxHash hash value

[cclauss]

Suggested change

	input_ints = list(
	int.from_bytes(input_bytes, byteorder="little", signed=False)
	for i in range(16)
	)
	input_ints = [
	int.from_bytes(input_bytes, byteorder="little", signed=False)
	for i in range(16)
	]

[cclauss]

% python3 -m doctest -v hashes/xxhash.py

043     >>> data = b'Hello, World!'
044     >>> seed = 0
045     >>> xxhash(data, seed)
Expected:
    133790109
Got:
    159324916801739733393893190253682566781592874975429781715206986473506725566370079513040611836