utils.py

"""utils.py"""

import os
import argparse
import subprocess


class DataGather(object):
    def __init__(self, *args):
        self.keys = args
        self.data = self.get_empty_data_dict()

    def get_empty_data_dict(self):
        return {arg:[] for arg in self.keys}

    def insert(self, **kwargs):
        for key in kwargs:
            self.data[key].append(kwargs[key])

    def flush(self):
        self.data = self.get_empty_data_dict()


def str2bool(v):
    # codes from : https://stackoverflow.com/questions/15008758/parsing-boolean-values-with-argparse

    if v.lower() in ('yes', 'true', 't', 'y', '1'):
        return True
    elif v.lower() in ('no', 'false', 'f', 'n', '0'):
        return False
    else:
        raise argparse.ArgumentTypeError('Boolean value expected.')


def grid2gif(image_str, output_gif, delay=100):
    """Make GIF from images.

    code from:
        https://stackoverflow.com/questions/753190/programmatically-generate-video-or-animated-gif-in-python/34555939#34555939
    """
    str1 = 'convert -delay '+str(delay)+' -loop 0 ' + image_str  + ' ' + output_gif
    subprocess.call(str1, shell=True)


def mkdirs(path):
    if not os.path.exists(path):
        os.makedirs(path)