MNT: Move extras/scripts around a bit

doc/scripts/ipython_config.py

@@ -0,0 +1,9 @@
+# In build.sh, this file is copied into (and removed from)
+# ~/.ipython/profile_default/startup/
+
+import pandas as pd
+pd.set_option("display.max_rows", 30)
+# This an alternative to setting display.preceision=2,
+# which doesn't work well for our dtype=object Series.
+pd.set_option('display.float_format', '{:.2f}'.format)
+del pd

doc/scripts/logo.py

@@ -0,0 +1,29 @@
+from bokeh.io import show, output_file
+from bokeh.models import ColumnDataSource
+from bokeh.plotting import figure
+
+output_file("backtesting_logo.html")
+
+source = ColumnDataSource(data=dict(
+    colors=[['#00a618', '#d0d000', 'tomato'][i]
+            for i in [0, 0, 1, 0, 1, 0, 0, 1, 0, 2]],
+    x=list(range(10)),
+    bottom=[1, 3, 4, 3, 2, 3, 5, 5, 7, 6.5],
+    top=   [4, 7, 6, 5, 4, 6, 8, 7, 9, 8]))   # noqa: E222,E251
+
+
+p = figure(plot_height=800, plot_width=1200, tools='wheel_zoom,save')
+p.vbar('x', .6, 'bottom', 'top', source=source,
+       line_color='black', line_width=2,
+       fill_color='colors')
+
+p.xgrid.grid_line_color = None
+p.ygrid.grid_line_color = None
+p.y_range.start = -2
+p.y_range.end = 12
+p.x_range.start = -2
+p.x_range.end = 11
+p.background_fill_color = None
+p.border_fill_color = None
+
+show(p)

doc/scripts/strip_yaml.awk

@@ -0,0 +1,7 @@
+#!/usr/bin/awk -f
+ 
+# Remove YAML front matter from jupytext-converted .py notebooks
+
+BEGIN { drop = 0; }
+/^# ---$/ { if (NR <= 3) { drop = 1 } else { drop = 0; next } }
+drop == 0 { print }