Bump to v0.4.2, fix build issue

Author: mkaz

setup.py

@@ -19,7 +19,7 @@
     name='termgraph',
     packages=['termgraph'],
     entry_points={'console_scripts': ['termgraph=termgraph.termgraph:main']},
-    version='0.4.1',
+    version='0.4.2',
     author="mkaz",
     author_email="marcus@mkaz.com",
     url='https://github.com/mkaz/termgraph',

termgraph/math_fns.py

@@ -15,11 +15,7 @@
 import os
 import re
 
-from math_fns import find_max
-from math_fns import find_min
-from math_fns import normalize
-
-VERSION = "0.4.1"
+VERSION = "0.4.2"
 
 init()
 
@@ -134,6 +130,43 @@ def main():
         chart(colors, data, args, labels)
 
 
+def find_min(data):
+    """Return the minimum value in sublist of list."""
+    return min([min(sublist) for sublist in data])
+
+
+def find_max(data):
+    """Return the maximum value in sublist of list."""
+    return max([max(sublist) for sublist in data])
+
+
+def normalize(data, width):
+    """Normalize the data and return it."""
+
+    # We offset by the minimum if there's a negative.
+    data_offset = []
+    min_datum = find_min(data)
+    if min_datum < 0:
+        min_datum = abs(min_datum)
+        for datum in data:
+            data_offset.append([d + min_datum for d in datum])
+    else:
+        data_offset = data
+    min_datum = find_min(data_offset)
+    max_datum = find_max(data_offset)
+
+    # max_dat / width is the value for a single tick. norm_factor is the
+    # inverse of this value
+    # If you divide a number to the value of single tick, you will find how
+    # many ticks it does contain basically.
+    norm_factor = width / float(max_datum)
+    normal_data = []
+    for datum in data_offset:
+        normal_data.append([v * norm_factor for v in datum])
+
+    return normal_data
+
+
 def find_max_label_length(labels):
     """Return the maximum length for the labels."""
     length = 0