domain: github.com/Knio/pynmea2 · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Install the library with pip install pynmea2
Read line-delimited raw sentences from a serial GPS/AIS device, log file, or network stream
Call pynmea2.parse(line) per line to get a typed sentence object (e.g. GGA, RMC) with fields named per the sentence's talker/type spec
Set the checksums argument explicitly ('required', 'check', or 'my_data_is_corrupt') rather than relying on the lenient default
Wrap each parse() call in try/except for pynmea2.ParseError since malformed sentences are common on noisy serial links
Use derived convenience properties like msg.latitude/msg.longitude to get decimal-degree coordinates instead of manually converting from NMEA's native DDDMM.MMMM format
Known gotchas
The default checksum mode ('check') silently accepts sentences that have no checksum at all; use 'required' if you need to guarantee verified data
pynmea2 only recognizes sentence/talker types it has explicit classes for; rare, proprietary, or newer sentence types may fail to parse or parse only generically
It is a community-maintained implementation, not an official NMEA publication, so exhaustive spec coverage should not be assumed
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