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nfcpy / nfcpy

A Python module to read/write NFC tags or communicate with another NFC device.
European Union Public License 1.1
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examples/tagtool.py emulation not reading the ndef file correctly #136

Closed tts320 closed 5 years ago

tts320 commented 5 years ago

I'm having difficulties getting the examples/tagtool.py working in the emulate mode. Writing a tag works fine. This is on Raspberry Pi Zero with Raspbian Jessie and Python 3.4.2. I'm using the master branch versions of both nfcpy and ndeftool. PN532 v1.6 NFC board.

I think the issue might be related to the way Python3 handles argument character encoding. This page describes the issue: https://click.palletsprojects.com/en/7.x/python3/

I have the following locale settings: LANG="en_US.UTF-8" LC_ALL="en.US.UTF-8" LC_CTYPE="UTF-8"

` pi@raspberrypi:~ $ ndeftool text "Hello World" id "r1" uri "http://nfcpy.org" save -k "message.ndef" print

NDEF Text Record ID 'r1' Text 'Hello World' Language 'en' Encoding 'UTF-8' NDEF Uri Record ID '' Resource 'http://nfcpy.org'

pi@raspberrypi:~ $ python3 nfcpy-master/examples/tagtool.py -v --device tty:AMA0:pn532 emulate message.ndef tt3 [nfc.clf] searching for reader on path tty:AMA0:pn532 [nfc.clf] using PN532v1.6 at /dev/ttyAMA0 Traceback (most recent call last): File "nfcpy-master/examples/tagtool.py", line 521, in prepare_tt3_tag self.options.data AttributeError: 'Namespace' object has no attribute 'data'

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "nfcpy-master/examples/tagtool.py", line 613, in TagTool().run() File "/home/pi/nfcpy-master/examples/cli.py", line 375, in run while self.run_once() and self.options.loop: File "/home/pi/nfcpy-master/examples/cli.py", line 370, in run_once return clf.connect(**kwargs) File "/usr/local/lib/python3.4/dist-packages/nfcpy-1.0.1-py3.4.egg/nfc/clf/init.py", line 562, in connect target = card_options'on-startup' File "nfcpy-master/examples/tagtool.py", line 323, in on_card_startup target = self.prepare_tag(target) File "nfcpy-master/examples/tagtool.py", line 512, in prepare_tag return self.prepare_tt3_tag(target) File "nfcpy-master/examples/tagtool.py", line 524, in prepare_tt3_tag self.options.data = self.options.input.read() File "/usr/lib/python3.4/codecs.py", line 313, in decode (result, consumed) = self._buffer_decode(data, self.errors, final) UnicodeDecodeError: 'utf-8' codec can't decode byte 0x99 in position 0: invalid start byte `

mclean25 commented 5 years ago

Bump, I'm getting the same issue.

nehpetsde commented 5 years ago

@mclean25 Also Python 3.4 or with a newer version?

mclean25 commented 5 years ago

@nehpetsde yes, Python 3.4 and the master of both nfcpy & ndeftool as of a couple of hours ago.

nehpetsde commented 5 years ago

I can confirm that this is also failing on Python 3.5 and later.

nehpetsde commented 5 years ago

Latest master should work. New release 1.0.2 follows when checks have passed.

nehpetsde commented 5 years ago

Release 1.0.2 fixed this issue.