tried to modularise the code and caused 1000 test errors

.gitignore

@@ -0,0 +1,6 @@
+__pycache__
+.coverage
+*~
+dist
+man/_build
+*egg*

plot_phylo/amend_tree.py

@@ -1,48 +1,8 @@
 #!/usr/bin/env python3
-def get_boxes(ax, texts):
-    '''
-    Converts a list of text objects to their co-ordinates on the axis in
-    axis units.
-
-    Parameters
-    ----------
-    ax : matplotlib.axes._axes.Axes,
-        An open matplotlib ax object where the tree will be plotted.
-    texts : list
-        A list of matplotlib.pyplot.text objects representing the tip
-        labels from the tree and their metadata.
-
-    Returns
-    -------
-    boxpos : dict
-        A dictionary of dictionaries where the top level keys are the tip
-        labels. Within each subdictionary the key value pairs are
-        index (position in the tree starting from the top) and the minimum,
-        maximum and central position of the text box on the x and y axis,
-        as index, xmin, xmid, xmax and ymin, ymid and ymax.
-
-    '''
-    boxpos = dict()
-    # Iterate through the tip labels
-    for i, txt in enumerate(texts):
-        # Get the position of the boxes containing the labels, convert to axis
-        # units
-        box = ax.transData.inverted().transform(txt.get_window_extent(
-            ax.figure.canvas.get_renderer()))
-        nam = txt.get_text().strip()
-        # Build the dictionary
-        boxpos[nam] = dict()
-        boxpos[nam]['index'] = i
-        boxpos[nam]['xmin'] = box[0][0].round(3)
-        boxpos[nam]['xmax'] = box[1][0].round(3)
-        boxpos[nam]['ymin'] = box[0][1].round(3)
-        boxpos[nam]['ymax'] = box[1][1].round(3)
-        boxpos[nam]['ymid'] = (box[0][1] + ((
-            box[1][1] - box[0][1]) / 2)).round(3)
-        boxpos[nam]['xmid'] = (
-            box[0][0] + ((box[1][0] - box[0][1]) / 2)).round(3)
-
-    return (boxpos)
+try:
+    from plot_phylo import get_boxes
+except ImportError:
+    import get_boxes
 
 
 def auto_axis(ax, textobj, xpos, ypos, width, height, depth, scale_bar,
@@ -87,7 +47,7 @@ def auto_axis(ax, textobj, xpos, ypos, width, height, depth, scale_bar,
         ymin -= yint + (yint * 0.2)
     ax.set_ylim(ymin, ymax)
     xmin = xpos - xint
-    nboxes = get_boxes(ax, textobj)
+    nboxes = get_boxes.get_boxes(ax, textobj)
     xmaxes = [nboxes[x]['xmax'] for x in nboxes]
     xmax = xint + max(xmaxes)
     ax.set_xlim(xmin, xmax)