Issue accessing data from Dictionary/List in the right format

[eismb]

Your server function get_weather_data returns a dict whose keys point to two lists, one with strings ('time') and another with numbers ('temp'). When I try to reproduce your code:

>>> temp_data = {'time':['2020-07-23 12:00:00', '2020-07-23 15:00:00', '2020-07-23 18:00:00'], 'temp':[8.81, 7.15, 5.83]}

>>> x = [n['time'] for n in temp_data]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: string indices must be integers, not str

>>> [type(n) for n in temp_data]
[<type 'str'>, <type 'str'>]

>>>

Because temp_data is the one variable that links to a dict and can be invoked with keys, what happens if you change the line in red with this one:

self.plot_4.data = go.Scatter(x=[n for n in self.temp_data['time']],
y=[n for n in self.temp_data['temp']],
line=dict(color='#2196f3')