U Zfl @sdddlZddlZddlZd ddZdddZdddZdd Zdd d Zeeeeeeeeed ZdS)Nc CsD|dkrt|}t|d}t|||W5QRSQRXdS)a Convert a file into the format expected by the Download component. :param path: path to the file to be sent :param filename: name of the file, if not provided the original filename is used :param type: type of the file (optional, passed to Blob in the javascript layer) :return: dict of file content (base64 encoded) and meta data used by the Download component Nrb)ntpathbasenameopen send_bytesread)pathfilenametypefr 4/tmp/pip-unpacked-wheel-47crqvv_/dash/dcc/express.py send_files   rcKs:t|tr|ntt|f|}tt|||ddS)a Convert data written to BytesIO into the format expected by the Download component. :param src: array of bytes or a writer that can write to BytesIO :param filename: the name of the file :param type: type of the file (optional, passed to Blob in the javascript layer) :return: dict of data frame content (base64 encoded) and meta data used by the Download component Tcontentr r base64) isinstancebytes _io_to_strioBytesIOdictr b64encodedecodesrcr r kwargsrr r r rs  rcKs0t|tr|ntt|f|}t|||ddS)a Convert data written to StringIO into the format expected by the Download component. :param src: a string or a writer that can write to StringIO :param filename: the name of the file :param type: type of the file (optional, passed to Blob in the javascript layer) :return: dict of data frame content (NOT base64 encoded) and meta data used by the Download component Fr)rstrrrStringIOrrr r r send_string)s rcKs.|j}dd|_||f||}||S)NcSsdS)Nr r r r r 8z_io_to_str..)closegetvalue)Zdata_iowriterrZ data_io_closeZ data_valuer r r r5s   rcKs4|j}|tkr td|t||||f|S)a Convert data frame into the format expected by the Download component. :param writer: a data frame writer :param filename: the name of the file :param type: type of the file (optional, passed to Blob in the javascript layer) :return: dict of data frame content (base64 encoded) and meta data used by the Download component Examples -------- >>> df = pd.DataFrame({'a': [1, 2, 3, 4], 'b': [2, 1, 5, 6], 'c': ['x', 'x', 'y', 'y']}) ... >>> send_data_frame(df.to_csv, "mydf.csv") # download as csv >>> send_data_frame(df.to_json, "mydf.json") # download as json >>> send_data_frame(df.to_excel, "mydf.xls", index=False) # download as excel >>> send_data_frame(df.to_pickle, "mydf.pkl") # download as pickle zZThe provided writer ({}) is not supported, try calling send_string or send_bytes directly.)__name___data_frame_senderskeys ValueErrorformat)r$r r rnamer r r send_data_frame@s r+) Zto_csvZto_jsonZto_htmlZto_excelZ to_featherZ to_parquetZ to_msgpackZto_stataZ to_pickle)NN)N)N)N) rrrrrrrr+r&r r r r s"