ndeflib

library0.3.3pypypi✓ verified 79d ago

NFC Data Exchange Format (NDEF) decoder and encoder for Python. Version 0.3.3, low release cadence. Supports creation, parsing, and serialization of NDEF messages used in NFC tags and peer-to-peer communication.

iot device-communication

pip install ndeflib

homepage ↗

INSTALL

IMPORT

SIG · NDEFLIB

ndeflib

iotpythonv0.3.3

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Record

✓ from ndef import Record

✗ from ndef import Message

TextRecord

✓ from ndef import TextRecord

UriRecord

✓ from ndef import UriRecord

Create an NDEF message with a text record, encode to bytes, then decode back.

from ndef import Message, Record, make_text_record # Create a text record record = make_text_record('Hello, NFC!', encoding='utf-8') # Create a message with the record message = Message(record) # Encode to bytes encoded = message.to_bytes() print('Encoded:', encoded.hex()) # Decode from bytes decoded = Message.from_bytes(encoded) for record in decoded: print('Record type:', record.type) print('Record payload:', record.data)

Debug

Known issues

gotchaThe package provides a high-level 'ndef' module, not 'ndeflib'. Importing 'ndeflib' directly gives you a different namespace with lower-level helpers.

fix

Use 'import ndef' or 'from ndef import ...' instead of 'import ndeflib'.

affects: all

deprecatedThe 'make_tnf_method' function in ndeflib is deprecated. Use create_record_with_type instead.

fix

Use create_record_with_type from ndef.rec tools or use ndef.make functions.

affects: 0.3.x

breakingIn version 0.3.0, the Message class changed from a list subclass to a custom sequence. Iterating over Message still works, but direct indexing may return different types.

fix

Use 'for record in message:' or convert to list with list(message).

affects: 0.3.0+

gotchaRecord.data might be bytes or str depending on type. Text records decode payload to str only if encoding is known.

fix

Check record.type and handle payload accordingly. Use record.data.decode('utf-8') for text records if needed.

affects: all

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Version history

0.3.3latest on PyPI · released May 27, 2019

Audit

Dependencies

No dependency data recorded yet.

Agent activity

26 hits · last 30 days

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Resources

homepagehttps://ndeflib.readthedocs.io/ ↗