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#vim: fileencoding=utf-8
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"""
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One-line output mode.
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Initial implementation of one-line output mode.
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[ ] forecast
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[ ] spark
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[ ] several locations
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[ ] location handling
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[ ] more preconfigured format lines
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[ ] add information about this mode to /:help
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"""
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import sys
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import re
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from constants import WWO_CODE, WEATHER_SYMBOL, WIND_DIRECTION
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from weather_data import get_weather_data
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PRECONFIGURED_FORMAT = {
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'1': u'%c %t',
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'2': u'%c 🌡️%t 🌬️%w',
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'3': u'%l: %c %t',
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'4': u'%l: %c 🌡️%t 🌬️%w',
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}
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def render_temperature(data):
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"""
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temperature (t)
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"""
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temperature = u'%s⁰C' % data['temp_C']
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if temperature[0] != '-':
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temperature = '+' + temperature
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return temperature
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def render_condition(data):
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"""
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condition (c)
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"""
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weather_condition = WEATHER_SYMBOL[WWO_CODE[data['weatherCode']]]
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return weather_condition
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def render_wind(data):
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"""
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wind (w)
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"""
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try:
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degree = data["winddirDegree"]
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except KeyError:
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degree = ""
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try:
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degree = int(degree)
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except ValueError:
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degree = ""
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if degree:
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wind_direction = WIND_DIRECTION[((degree+22)%360)/45]
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else:
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wind_direction = ""
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unit = ' km/h'
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wind = u'%s%s%s' % (wind_direction, data['windspeedKmph'], unit)
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return wind
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def render_location(data):
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"""
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location (l)
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"""
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return data['location']
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FORMAT_SYMBOL = {
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'c': render_condition,
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't': render_temperature,
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'w': render_wind,
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'l': render_location,
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}
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def render_line(line, data):
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"""
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Render format `line` using `data`
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"""
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def render_symbol(match):
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"""
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Render one format symbol from re `match`
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using `data` from external scope.
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"""
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symbol_string = match.group(0)
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symbol = symbol_string[-1]
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if symbol not in FORMAT_SYMBOL:
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return ''
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render_function = FORMAT_SYMBOL[symbol]
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return render_function(data)
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return re.sub(r'%[^%]*[a-z]', render_symbol, line)
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def format_weather_data(format_line, location, data):
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"""
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Format information about current weather `data` for `location`
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with specified in `format_line` format
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"""
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current_condition = data['data']['current_condition'][0]
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current_condition['location'] = location
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output = render_line(format_line, current_condition)
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return output
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def wttr_line(location, query):
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"""
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Return 1line weather information for `location`
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in format `line_format`
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"""
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format_line = query.get('line', '')
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if format_line in PRECONFIGURED_FORMAT:
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format_line = PRECONFIGURED_FORMAT[format_line]
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weather_data = get_weather_data(location)
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output = format_weather_data(format_line, location, weather_data)
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output = output.rstrip("\n")+"\n"
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return output
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def main():
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"""
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Function for standalone module usage
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"""
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location = sys.argv[1]
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query = {
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'line': sys.argv[2],
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}
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sys.stdout.write(wttr_line(location, query))
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if __name__ == '__main__':
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main()
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