dmbaturin / pytaf Goto Github PK

Please reference pull request #20 in regard to this issue.

i.e. for taf = pytaf.TAF("TAF AMD KMKE 172034Z 1721/1824 14013G19KT P6SM SCT028 BKN035 BKN250 FM180100 17008KT P6SM SCT035 BKN120 FM181000 17007KT P6SM VCSH BKN040 OVC080 TEMPO 1811/1815 6SM -TSRA BR BKN030CB FM181500 18009KT P6SM VCSH BKN050 FM182100 16012KT P6SM SCT050 BKN150")

After running

decoder = pytaf.Decoder(taf)
print(decoder.decode_taf())

print(taf.get_header()) shows
{'form': 'taf', 'icao_code': 'KMKE', 'origin_date': '17th', 'valid_till_hours': '24', 'valid_from_hours': '21', 'origin_hours': '20', 'valid_from_date': '17th', 'type': 'AMD', 'origin_minutes': '34', 'valid_till_date': '18th'}

why origin_date, valid_from_date and valid_till_date as the ordinal suffix and not just the day int value?

I noticed a few TAFs in my dataset that had no issue date/time and that the parser then incorrectly interpreted the valid form/to date/time as issue date/time, e. g.:

'TAF ENBO 0615/0715 03008KT 9999 FEW025 SCT100 BECMG 0615/0618 25010KT PROB30 TEMPO 0621/0708 BKN008'

would be interpreted as

TAF for KQHN issued 07: UTC on the 02nd, valid from :00 UTC on the to 13:00 UTC on the 03rd
Wind: from 270 degrees at 09 knots
Visibility: more than 10 000 meters
Sky conditions: sky clear

Temporarily between 11:00 on the 02nd and 15:00 on the 02nd:
Wind: from 270 degrees at 10 knots gusting to 15 knots
Visibility: 6000 meters
Weather: blowing dust

Gradual change to the following between 12:00 on the 02nd and 13:00 on the 02nd:
Wind: variable at 06 knots
Visibility: 9000 meters
Sky conditions: sky clear
Weather: haze

I am not familiar enough with regex to come up with a sensible solution to this. Is there a way to define that the "valid from/to" expression must be encapsulated by spaces and must contain a /?

Kind regards
Mike

I would like to also mention that the pytaf program forget the last TAF line.

import pytaf

#taf = pytaf.TAF("TAF KIAH 090530Z 0906/1012 02006KT 3SM BR OVC004 FM090700 02008KT 4SM SHRA BR VCSH OVC007 TEMPO 0909/0913 2SM -TSRA BKN007 OVC040CB FM091300 01014G21KT 4SM -RA BR OVC006 FM091800 01017G25KT 6SM -DZ BR BKN012 OVC040 FM092200 01014G23KT P6SM BKN035 OVC090 FM100000 02013KT P6SM SCT120 SCT250 FM100700 03008KT P6SM BKN100 =")

taf = pytaf.TAF("TAF AMD CYMX 090209Z 0902/0924 VRB03KT P6SM OVC010 TEMPO 0902/0904 3SM SHRA BR OVC004 PROB40 0902/0904 VRB15G25KT 11/2SM TSRA BR OVC003CB FM090400 VRB03KT P6SM OVC010 TEMPO 0904/0905 VRB15G25KT 11/2SM TSRA BR OVC003CB FM090500 VRB03KT 3/4SM BR OVC002 TEMPO 0905/0911 2SM -SHRA BR OVC003 PROB30 0905/0911 1/4SM FG VV001 FM091100 VRB03KT WS010/24030KT 3/4SM -SHRA BR OVC002 PROB30 0911/0914 VRB15G30KT 2SM TSRA BR OVC004CB FM091400 24010G20KT 4SM -SHRA BR OVC005 FM091600 24010G20KT P6SM SCT008 OVC015 BECMG 0922/0924 23008KT RMK NXT FCST BY 090600Z =")

decoder = pytaf.Decoder(taf)
print(decoder.decode_taf())

output:

TAF amended for CYMX issued 02:09 UTC on the 09th, valid from 02:00 UTC on the 09th to 24:00 UTC on the 09th
Wind: variable at 03 knots
Visibility: more than 6 statute miles
Sky conditions: overcast clouds at 1000 feet

Temporarily between 02:00 on the 09th and 04:00 on the 09th:
Visibility: 3 statute miles
Sky conditions: overcast clouds at 400 feet
Weather: rain showers / mist

Probability 40% of the following between 02:00 on the 09th and 04:00 on the 09th:
Wind: variable at 15 knots gusting to 25 knots
Sky conditions: overcast cumulonimbus clouds at 300 feet
Weather: rain thunderstorms / mist

From 04:00 on the 09th:
Wind: variable at 03 knots
Visibility: more than 6 statute miles
Sky conditions: overcast clouds at 1000 feet

Temporarily between 04:00 on the 09th and 05:00 on the 09th:
Wind: variable at 15 knots gusting to 25 knots
Sky conditions: overcast cumulonimbus clouds at 300 feet
Weather: rain thunderstorms / mist

From 05:00 on the 09th:
Wind: variable at 03 knots
Visibility: 3/4 statute miles
Sky conditions: overcast clouds at 200 feet
Weather: mist

Temporarily between 05:00 on the 09th and 11:00 on the 09th:
Visibility: 2 statute miles
Sky conditions: overcast clouds at 300 feet
Weather: light rain showers / mist

Probability 30% of the following between 05:00 on the 09th and 11:00 on the 09th:
Visibility: 1/4 statute miles
Weather: fog

From 11:00 on the 09th:
Wind: variable at 03 knots
Visibility: 3/4 statute miles
Sky conditions: overcast clouds at 200 feet
Weather: light rain showers / mist
Windshear: at 1000, wind 240 at 30 KT

Probability 30% of the following between 11:00 on the 09th and 14:00 on the 09th:
Wind: variable at 15 knots gusting to 30 knots
Visibility: 2 statute miles
Sky conditions: overcast cumulonimbus clouds at 400 feet
Weather: rain thunderstorms / mist

From 14:00 on the 09th:
Wind: from 240 degrees at 10 knots gusting to 20 knots
Visibility: 4 statute miles
Sky conditions: overcast clouds at 500 feet
Weather: light rain showers / mist

From 16:00 on the 09th:
Wind: from 240 degrees at 10 knots gusting to 20 knots
Visibility: more than 6 statute miles
Sky conditions: scattered clouds at 800 feet, overcast clouds at 1500 feet

It complete skips "BECMG 0922/0924 23008KT RMK NXT FCST BY 090600Z"

Don't no if this is the same issue as the other commit because it doesn't parse 0922/0924

call to .get_taf() returns error:
AttributeError: 'TAF' object has no attribute '_TAF__raw_taf'

Probably line 420 has one extra underscore "_"

Request from a user:

I was trying to decode METAR using PyTaf library. The library is very useful and decodes very well except RVR.

For example : METAR VOML 101430Z 28005KT 1000 R24/1200 +TSRA BR FEW004 SCT012 FEW025CB BKN080 26/22 Q1009 NOSIG=

The library ignores  R24/1200. Requesting you to kindly incorporate RVR decoding in PyTaf.

Can you add TSSH to the search TSSH for certain South Pacific station. Thunderstorms and Showers.

It is currently impossible to load the library with Python 2. The import command

import pytaf

fails with:

SyntaxError: Non-ASCII character '\xc2' in file [...]/tafdecoder.py

To fix this, a line similar to this one is needed at the top of tafdecoder.py:

# -*- coding: utf-8 -*-

See PEP 263 for more information.