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Generate chart image based on 7 day forecast form a given location

Project description

7 Day Weather forecast

The module provides a 7 day weather forecast from the Open Weather Map and then converted to am image using See a full article from PythonHowToProgram

What problem does this solve?

The module will help to return a 7 day weather forecast for a given location either as a dictionary, a chart image file, or a web link with the chart image

How does it do this?

There are three key services that are used for this module:

  1. The geopy library to convert a string to lat-long
  2. Open Weather Map online service (you can get an API key through a free account in the profile section)
  3. Then finally from QuickCharts to convert the time series weather data into a chart

How do you install this?

MCLogger is avaialble through PyPi and you may use pip:

	pip install weatherchart

Or, through git:

	git clone

How do you use weatherchart?

The weatherchart library is super easy to use. You need to simply pass the Open Weather API key, a timezone, and then a location string. A URL will be returned of the chart or saved as a file

from weatherchart import WeatherChart

wchart = WeatherChart('<open weather map token>', 'Asia/Hong_Kong')
print( wchart.get_forecast_chart_image_by_loc('Tokyo', 'out_file.jpg' ) )

Class Methods overview

  • constructor(self, map_key, tz_location='Asia/Singapore'):

    Constructor must include the Open Weather MAP API key, and also a timezone. The timezone list can be found on the Wiki Timezone page. The reason for the timzone is to ensure the right time period is extract for the next 7 days

  • get_full_weather_data(self, lat, long):

    Return a dictionary with weather a full detailed range of data (temperature, min, max, humidity and many more) for next 7 days including today. The location must be provided as a lat long.

  • get_forecast_by_location(self, loc_string):

    Return a dictionary with weather data (temperature, min, max, humidity) for next 7 days including today. The location must be provided as a location description (e.g. "Seattle", "New York, New York"). Output is the same as the method get_forecast()

  • get_forecast(self, lat, long):

    Return a dictionary with weather data (temperature, min, max, humidity) for next 7 days including today. The location must be provided as a lat long.
    A ditionary will be returned with the following:

        'temp': <float>,
        'temp_min':  <float>,
        'temp_max':  <float>,
        'wind_speed':  <float>,
        'humidity':  <float> 
  • get_forecast_chart_image_by_loc( self, loc_string, output_file=None):

    This will return an image with a chart showing the 7 day forecast. If a filename is provided then the image will be saved as an image as well (.jpg). Input is a location sring and the function will return a URL string. An example output below:

    7 day forecast for Tokyo, Japan

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