Move Flask app into package `visualizer`

visualizer.py → visualizer/__init__.py

@@ -12,7 +12,7 @@ import matplotlib.pyplot as plt
 import numpy as np
 from pyld import jsonld
 
-import data_spec
+from . import data_spec
 
 Measurement = make_dataclass('Measurement', ['url_name', 'field', 'title'])
 measurements = {m.url_name: m for m in (
@@ -335,7 +335,3 @@ def read_data(station, year):
     # Sort by date, since monthly URLs will be out of order.
     data = data[data[:, 0].argsort()]
     return data
-
-
-if __name__ == '__main__':
-    app.run()

visualizer/__main__.py

+"""Run the visualizer."""
+
+from . import app
+
+if __name__ == '__main__':
+    app.run()