MNT: teak examples a bit

Author: tacaswell

00-explore.py

@@ -2,20 +2,22 @@
 import numpy as np
 plt.ion()
 
-ev = None
+last_ev = None
 
 
 def event_printer(event):
     """Helper function for exploring events.
 
     Prints all public attributes +
     """
-    global ev
-    ev = event
+    # capture the last event
+    global last_ev
+    last_ev = event
     for k, v in sorted(vars(event).items()):
-        print('{k}: {v!r}'.format(k=k, v=v))
+        print(f'{k}: {v!r}')
     print('-'*25)
 
+
 th = np.linspace(0, 2*np.pi, 64)
 fig, ax = plt.subplots()
 ax.plot(th, np.sin(th), 'o-', picker=5)

02-event_filter.py

@@ -51,11 +51,12 @@ def on_key(self, event):
             # ask the GUI to re-draw the next time it can
             self.ln.figure.canvas.draw_idle()
 
+
 fig, ax = plt.subplots()
 ln, = ax.plot([], [], '-o')
 line_maker = LineMaker(ln)
 
 # EXERCISE
-# - modify to remove the closest point on button == 3 or key == 'shift'
+# - modify to remove the closest point when key == 'shift'
 # - change the line width for [1-9]
 # - clear the line when event.key == 'escape'

pddc_helpers.py

@@ -1,10 +1,8 @@
-from urllib.request import urlopen
 import datetime
-import numpy as np
 import pandas as pd
-import gzip
 import os
 
+
 def aggregate_by_month(df, col='T'):
     gb = df.groupby(('year', 'month'))['T'].describe().unstack()
     new_index = [datetime.date(*m, *(15, )) for m in gb.index]