# -*- coding: utf-8 -*-
import os
import argparse
import version
import fs_utils
from pybtex.database.input import bibtex


def define_parser():
    """
    Command-line interface
    """
    parser = argparse.ArgumentParser(description="Manage BibTeX files")

    parser.add_argument("--version",
        action="store_true",
        help="Print version information")

    parser.add_argument("-t", "--test",
        action="store_true",
        help="Test parseability of BibTeX file(s)",)

    parser.add_argument("-v", "--verbose",
        action="store_true",
        help="Verbose output",)

    parser.add_argument("-p", "--parseable",
        action="store_true",
        help="Print only list of parseable files",)

    parser.add_argument("paths_args",
        nargs="*",
        default=["*.bib"],
        help="File(s) to test parseability",
        metavar="files")

    return parser


def cli_args_dispatcher(parser):
    """
    Dispatch functionality based on command-line args
    """
    args = parser.parse_args()

    if args.version:
        print version.__version__
    elif args.test:
        test(args)


def main():
    """
    Method called via command-line
    """
    parser = define_parser()
    cli_args_dispatcher(parser)


def test(args):
    """
    Implement "test" command-line functionality
    """
    paths = fs_utils.handle_files_args(*args.paths_args)
    bibs_paths_dict = fs_utils.import_bib_files(*paths)

    parseables = []
    parseables_msg = "The following files are parseable:"
    unparseables = []
    unparseables_msg = "The following files are unparseable:"


    for key in bibs_paths_dict.keys():
        if bibs_paths_dict[key] is None:
            unparseables.append(key)
            unparseables_msg += "\n\t" + str(key.resolve())
        else:
            parseables.append(key)
            parseables_msg += "\n\t" + str(key.resolve())

    if args.verbose:
        print(parseables_msg)
        print("\r")
        print(unparseables_msg)
    elif args.parseable:
        print(parseables_msg)
    else:
        print(unparseables_msg)


if __name__ == '__main__':
    parser = main()
    cli_args_dispatcher(parser)

# -*- coding: utf-8 -*-
import os
import argparse
import version
import fs_utils


def define_parser():
    """
    Command-line interface
    """
    parser = argparse.ArgumentParser(description="Manage BibTeX files")

    parser.add_argument("--version",
        action="store_true",
        help="Print version information")

    parser.add_argument("-t", "--test",
        action="store_true",
        help="Test parseability of BibTeX file(s)",)

    parser.add_argument("-v", "--verbose",
        action="store_true",
        help="Verbose output",)

    parser.add_argument("-p", "--parseable",
        action="store_true",
        help="Print only list of parseable files",)

    parser.add_argument("paths_args",
        nargs="*",
        default=["*.bib"],
        help="File(s) to test parseability",
        metavar="files")

    return parser


def cli_args_dispatcher(parser):
    """
    Dispatch functionality based on command-line args
    """
    args = parser.parse_args()

    if args.version:
        print version.__version__
    elif args.test:
        test(args)


def main():
    """
    Method called via command-line
    """
    parser = define_parser()
    cli_args_dispatcher(parser)


def test(args):
    """
    Implement "test" command-line functionality
    """
    paths = fs_utils.handle_files_args(*args.paths_args)
    bibs_paths_dict = fs_utils.import_bib_files(*paths)

    parseables = []
    parseables_msg = "The following files are parseable:"
    unparseables = []
    unparseables_msg = "The following files are unparseable:"


    for key in bibs_paths_dict.keys():
        if bibs_paths_dict[key] is None:
            unparseables.append(key)
            unparseables_msg += "\n\t" + str(key.resolve())
        else:
            parseables.append(key)
            parseables_msg += "\n\t" + str(key.resolve())

    if args.verbose:
        print(parseables_msg)
        print("\r")
        print(unparseables_msg)
    elif args.parseable:
        print(parseables_msg)
    else:
        print(unparseables_msg)


if __name__ == '__main__':
    parser = main()
    cli_args_dispatcher(parser)

Remove superfluous import statement