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Get SHA-256 Hash for File

Description​

The get_sha256_hash_for_file function computes the SHA-256 hash of a given file. This is commonly used to verify file integrity or generate checksums for file comparison.

Function Signature:​

def get_sha256_hash_for_file(file_path: str) -> str:

Parameters​

  • file_path (str): The path to the file whose SHA-256 hash is to be computed.

Returns​

  • str: The SHA-256 hash of the file in hexadecimal format.

Example Usage​

file_path = "path/to/your/file.txt"
file_hash = get_sha256_hash_for_file(file_path)
print(f"The SHA-256 hash for the file is: {file_hash}")

Notes​

  • The function reads the file in chunks (4096 bytes at a time) to avoid loading large files entirely into memory.
  • The SHA-256 hash is computed using Python's hashlib library.

Error Handling​

  • This function assumes the file exists and is accessible. If the file cannot be opened or read, an exception will be raised.