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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def text_lines_from_local_file(document, remote=False):
 """Return the fulltext of the local file. @param document: fullpath to the file that should be read @param remote: boolean, if True does not count lines @return: list of lines if st was read or an empty list """

    try:
        if is_pdf(document):
            if not executable_exists("pdftotext"):
                current_app.logger.error(
                    "pdftotext is not available on the system."
                )
            cmd = "pdftotext -q -enc UTF-8 %s -" % re.escape(document)
            out = subprocess.Popen(["pdftotext", "-q", "-enc", "UTF-8",
                                    document, "-"],
                                   universal_newlines=True,
                                   stdout=subprocess.PIPE)
            (stdoutdata, stderrdata) = out.communicate()
            lines = stdoutdata.splitlines()
            if not isinstance(stdoutdata, six.text_type):
                # We are in Python 2. We need to cast to unicode
                lines = [line.decode('utf8', 'replace') for line in lines]
        else:
            filestream = codecs.open(document, "r", encoding="utf8",
                                     errors="replace")
            # FIXME - we assume it is utf-8 encoded / that is not good
            lines = [line for line in filestream]
            filestream.close()
    except IOError as ex1:
        current_app.logger.error("Unable to read from file %s. (%s)"
                                 % (document, ex1.strerror))
        return []

    # Discard lines that do not contain at least one word.
    return [line for line in lines if _ONE_WORD.search(line) is not None]