Run function in parallel but inherite dynamic data from the previous function

[atizva]

I'm trying to run multiple functions simultaneously:

-or so called functions because they belong to a class:

    from sh import tail
    data = {}
    class my_Class():
        def __init__(self):
            """Nothing to declare for initializing"""
        def get_data(self, filepath):
            """I'm trying to import the data from several files"""
            for line in tail("-f", "-n 1", filepath, _iter=True):
                data[filepath] = line
                print(data)
    my_Class().get_data("path/to/file") #call 1
    my_Class().get_data("path/to/another/file") #call 2
    # ... 14 similar calls

I want each call to append it's data to the dictionary. And so, when I call:

    my_Class().get_data("path/to/file") #call 1
    my_Class().get_data("path/to/another/file") #call 2
    # ... 14 similar calls

The result should print:

    #1 {'filepath1' : line}
    #2 {'filepath1' : line, 'filepath2' : line}
    #3 {'filepath1' : line, 'filepath2' : line, 'filepath3' : line}
    # ... 13 more

At the same time I want the content of dictionary data{...} to keep changing dynamically; because of the data in the files is flexible. For example:

    #1 {'filepath1' : line}
    #2 {'filepath1' : last_line_in_the_file}, 'filepath2' : line}
    #3 {'filepath1' : last_line_in_the_file, 'filepath2' : last_line_in_the_file, 'filepath3' : line}
    # ... 13 more

I've already checked these posts: but it doesn't do what I ask; https://stackoverflow.com/questions/7207...n-parallel, https://stackoverflow.com/questions/2054...-in-python
Thank you! Please tell me if something sounds obscure