ml_lib/utils/tools.py

42 lines
1017 B
Python

import pickle
import shelve
from pathlib import Path
import numpy as np
from utils.project_config import GlobalVar
def to_one_hot(idx_array):
one_hot = np.zeros((idx_array.size, len(GlobalVar.classes)))
one_hot[np.arange(idx_array.size), idx_array] = 1
return one_hot
def fix_all_random_seeds(config_obj):
import numpy as np
import torch
import random
np.random.seed(config_obj.main.seed)
torch.manual_seed(config_obj.main.seed)
random.seed(config_obj.main.seed)
def write_to_shelve(file_path, value):
check_path(file_path)
file_path.parent.mkdir(exist_ok=True, parents=True)
with shelve.open(str(file_path), protocol=pickle.HIGHEST_PROTOCOL) as f:
new_key = str(len(f))
f[new_key] = value
f.close()
def load_from_shelve(file_path, key):
check_path(file_path)
with shelve.open(str(file_path)) as d:
return d[key]
def check_path(file_path):
assert isinstance(file_path, Path)
assert str(file_path).endswith('.pik')