file.py 文件源码

def append_utf8(self, text):
        try:
            from Naked.toolshed.system import file_exists
            if not file_exists(self.filepath):
                raise IOError("The file specified for the text append does not exist (Naked.toolshed.file.py:append_utf8).")
            import codecs
            import unicodedata
            norm_text = unicodedata.normalize('NFKD', text) # NKFD normalization of the unicode data before write
            with codecs.open(self.filepath, mode='a', encoding="utf_8") as appender:
                appender.write(norm_text)
        except Exception as e:
            if DEBUG_FLAG:
                sys.stderr.write("Naked Framework Error: Unable to append text to the file with the append_utf8 method (Naked.toolshed.file.py).")
            raise e

    #------------------------------------------------------------------------------
    # [ gzip method (writer) ]
    #   writes data to gzip compressed file
    #   Note: adds .gz extension to filename if user did not specify it in the FileWriter class constructor
    #   Note: uses compresslevel = 6 as default to balance speed and compression level (which in general is not significantly less than 9)
    #   Tests: test_IO.py :: test_file_gzip_ascii_readwrite, test_file_gzip_utf8_readwrite,
    #               test_file_gzip_utf8_readwrite_explicit_decode
    #------------------------------------------------------------------------------