def indexes_all(ol, value):
    """
        from elist.elist import *
        ol = [1,'a',3,'a',4,'a',5]
        indexes_all(ol,'a')
    """
    length = ol.__len__()
    indexes = []
    for i in range(0, length):
        if value == ol[i]:
            indexes.append(i)
        else:
            pass
    return indexes
