import os
import sys
import gzip
import shutil


def gunzip_shutil(source_filepath, dest_filepath, block_size=65536):
    '''
    TODO: Version with path handling:
        dest = source minus suffix
    TODO: try/except
    TODO: controls (file exists)
    TODO: return values
    TODO: Documentation


    '''
    with gzip.open(source_filepath, 'rb') as s_file, \
            open(dest_filepath, 'wb') as d_file:
        shutil.copyfileobj(s_file, d_file, block_size)


file_in = sys.argv[1]

filename, file_extension = os.path.splitext(file_in)

print(file_in)
print(filename)


gunzip_shutil(file_in, filename)





# with gzip.open(file_in, 'rb') as f_in:
    # with open(filename, 'wb') as f_out:
        # shutil.copyfileobj(f_in, f_out)



# def gzip_shutil(source_filepath, dest_filepath, block_size=65536):
    # '''
    # TODO: Version with path handling:
        # dest = source plus suffix (*.gz)
    # TODO: try/except
    # TODO: controls (file exists)
    # TODO: return values
    # TODO: Documentation
    # '''

    # with gzip.open(dest_filepath, 'wb') as f_out:
        # with open(source_filepath, 'rb') as f_in:
            # shutil.copyfileobj(f_in, f_out)


# gzip_shutil(filename, file_in)