pyubx2

library1.3.2pypypi✓ verified 88d ago

A library for parsing and generating UBX protocol messages used by u-blox GNSS receivers. Current version 1.3.2, supports Python >=3.10. Actively maintained with regular releases.

hardware iot

pip install pyubx2

INSTALL

IMPORT

SIG · PYUBX2

pyubx2

hardwarepythonv1.3.2

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.

UBXMessage

✓ from pyubx2 import UBXMessage

✗ from ubx2 import UBXMessage

Library is not named 'ubx2'

UBXReader

✓ from pyubx2 import UBXReader

✗ from pyubx2.ubxread import UBXReader

UBXReader is a top-level export, not in a submodule

Parse a raw UBX message and generate a poll request.

from pyubx2 import UBXMessage, POLL, poll msg = UBXMessage(b'\xb5\x62\x06\x01\x03\x00\x01\x06\x01\x0e', validate=False) print(msg) poll_msg = poll(0x06, 0x01) print(poll_msg)

Debug

Known issues

gotchaUBXMessage constructor expects bytes (including sync chars), not a hex string.

fix

Pass bytes object like b'\xb5\xb62...'

affects: <2.0

gotchaValidation is enabled by default; messages with invalid checksums raise errors.

fix

Set validate=False if you want to parse malformed messages.

affects: >=1.0

deprecatedThe 'serial' protocol argument in UBXReader is deprecated; use 'mode' instead.

fix

Use mode='serial' or mode='file' instead of protocol='serial'.

affects: >=1.2.0

breakingPython 3.9 support dropped; requires Python >=3.10.

fix

Upgrade Python or pin to pyubx2<1.3.0.

affects: >=1.3.0

gotchaUBXReader yields (raw_data, parsed_message) tuples; parsed_message is an UBXMessage.

fix

Access fields via parsed_message.identity and parsed_message.payload.

affects: >=1.0

gotchaThe 'poll()' function returns a message with length zero; does not communicate with device.

fix

Use poll() to generate message bytes, then send them to the receiver.

affects: >=1.0

Errors

Common errors & fixes

ModuleNotFoundError: No module named 'pyubx2'

Library not installed or wrong environment.

fix

pip install pyubx2

ubxMessage.identity returns None or unexpected value

Message was parsed with validate=False but the bytes are invalid.

fix

Check that you pass correct UBX frame including sync chars b'\xb5\xb62'.

AttributeError: 'NoneType' object has no attribute 'payload'

UBXReader yielded None for parsed message (e.g., invalid data).

fix

Check input data integrity or set validate=False in UBXReader constructor.

Upgrade

Version history

1.3.2latest on PyPI · released Jun 7, 2026

Audit

Dependencies

pynmea2optionalNMEA parsing support (optional)

Agent activity

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