Bug fix: Rename shipname to name for type 21

See #52

Release version 2.0.0

• WARNING: The v2 release will introduce breaking changes
• Introduces the possibility to encode messages
• decoding has been rewritten and implements an iterative decoding approach
• The following fields were renamed:
  • message_fragments -> frag_cnt
  • fragment_number -> frag_num
  • message_id -> seq_id
  • type -> msg_type
  • shiptype -> ship_type
• msg.decode() does not return a pyais.messages.AISMessage instance anymore
  • instead an instance of pyais.messages.MessageTypeX is returned, where X is the type of the message (1-27)
• in v1 you called decoded.content to get the decoded message as a dictionary - this is now decoded.asdict()

Add bounds check for variable length messages

• Correctly handles variable length messages (#40)
  • prior versions were missing required length checks
  • therefore some messages were not correctly decoded
  • this affects Type 7, 15, 16, 20, 22, 24, 25 and 26

Better error messages for `decode_msg`

v1.6.2

Raise a meaningful exception if 'decode_msg' is used improperly (#38)

Bugfixes

This release fixes two bugs:

1. allows empty channel
2. limits payload to 82 chars

Make NMEAMessage subscriptable

• Makes NMEAMessage subscribable
• Adds documentation on readthedocs.org
• Renames instance attributes of NMEAMessage:
  • msg_type to type
  • count to message_fragments
  • index to fragment_number
  • seq_id to message_id
  • data to payload#
• Adds fill_bits field to NMEAMessage

Improve stability

This release improves the stability. This includes:

• more gentle stream like objects
• invalid checksums are logged but do not cause errors
• the class NMEAMessage is more restrictive in what it accepts
• better type hints
• additional type checks
• more unittests

Add a commandline utility (`ais-decode`)

• Pyais comes with a commandline utility now

  • ais-decode can decode single messages or files
  • you can read from a TCP/UDP socket from the terminal
  • no need to write Python code

• Improves Socket API

Mark package as typed

Thanks to the work of @mjakob the package is now strictly typed and also marked as typed. So every dependent code can profit from the type hints.

These changes should be non-breaking and therefore no issues are expected.

Bugfix

This minor release is able to handle type 0 messages.
See also #4