trial / deepface /commons /package_utils.py
Manav Sarkar
initini
ddda863
# built-in dependencies
import os
import hashlib
# 3rd party dependencies
import tensorflow as tf
# package dependencies
from deepface.commons.logger import Logger
logger = Logger(module="commons.package_utils")
def get_tf_major_version() -> int:
"""
Find tensorflow's major version
Returns
major_version (int)
"""
return int(tf.__version__.split(".", maxsplit=1)[0])
def get_tf_minor_version() -> int:
"""
Find tensorflow's minor version
Returns
minor_version (int)
"""
return int(tf.__version__.split(".", maxsplit=-1)[1])
def find_hash_of_file(file_path: str) -> str:
"""
Find the hash of given image file with its properties
finding the hash of image content is costly operation
Args:
file_path (str): exact image path
Returns:
hash (str): digest with sha1 algorithm
"""
file_stats = os.stat(file_path)
# some properties
file_size = file_stats.st_size
creation_time = file_stats.st_ctime
modification_time = file_stats.st_mtime
properties = f"{file_size}-{creation_time}-{modification_time}"
hasher = hashlib.sha1()
hasher.update(properties.encode("utf-8"))
return hasher.hexdigest()
def validate_for_keras3():
tf_major = get_tf_major_version()
tf_minor = get_tf_minor_version()
# tf_keras is a must dependency after tf 2.16
if tf_major == 1 or (tf_major == 2 and tf_minor < 16):
return
try:
import tf_keras
logger.debug(f"tf_keras is already available - {tf_keras.__version__}")
except ImportError as err:
# you may consider to install that package here
raise ValueError(
f"You have tensorflow {tf.__version__} and this requires "
"tf-keras package. Please run `pip install tf-keras` "
"or downgrade your tensorflow."
) from err