set up and install gettext

embroider.py

@@ -37,6 +37,7 @@ from pprint import pformat
 import inkstitch
 from inkstitch import cache, dbg, param, EmbroideryElement, get_nodes, SVG_POLYLINE_TAG, SVG_GROUP_TAG, PIXELS_PER_MM, get_viewbox_transform
 
+inkstitch.localize()
 
 class Fill(EmbroideryElement):
     def __init__(self, *args, **kwargs):

embroider_params.py

@@ -13,12 +13,17 @@ import wx
 from wx.lib.scrolledpanel import ScrolledPanel
 from collections import defaultdict
 import inkex
+import inkstitch
 from inkstitch import Param, EmbroideryElement, get_nodes
 from embroider import Fill, AutoFill, Stroke, SatinColumn
 from functools import partial
 from itertools import groupby
 from embroider_simulate import EmbroiderySimulator
 
+
+inkstitch.localize()
+
+
 def presets_path():
     try:
         import appdirs

embroider_simulate.py

@@ -6,9 +6,14 @@ import inkex
 import simplestyle
 import colorsys
 
+import inkstitch
 from inkstitch import PIXELS_PER_MM
 from embroider import patches_to_stitches, get_elements, elements_to_patches
 
+
+inkstitch.localize()
+
+
 class EmbroiderySimulator(wx.Frame):
     def __init__(self, *args, **kwargs):
         stitch_file = kwargs.pop('stitch_file', None)

inkstitch.py

@@ -1,7 +1,9 @@
 #!/usr/bin/env python
 # http://www.achatina.de/sewing/main/TECHNICL.HTM
 
+import os
 import sys
+import gettext
 from copy import deepcopy
 import math
 import libembroidery
@@ -35,6 +37,18 @@ dbg = open("/tmp/embroider-debug.txt", "w")
 def cache(*args, **kwargs):
     return lru_cache(maxsize=None)(*args, **kwargs)
 
+def localize():
+    if getattr(sys, 'frozen', False):
+        # we are in a pyinstaller installation
+        locale_dir = sys._MEIPASS
+    else:
+        locale_dir = os.path.dirname(__file__)
+
+    locale_dir = os.path.join(locale_dir, 'locales')
+
+    translation = gettext.translation("inkstitch", locale_dir, fallback=True)
+    translation.install()
+
 # cribbed from inkscape-silhouette
 def parse_length_with_units( str ):