update lecture-python (926803a)

mmcky · mmcky · commit c645453981d2 · 2021-02-16T10:43:47.000+11:00
diff --git a/lectures/pandas_panel.md b/lectures/pandas_panel.md
@@ -476,6 +476,7 @@ for continent in continents:
 
 plt.title('Real minimum wages in 2015')
 plt.xlabel('US dollars')
+plt.legend()
 plt.show()
 ```
 
