Added support for underscore imports.

Author: Rocky Meza

django_pyscss/scss.py

@@ -1,6 +1,7 @@
 from __future__ import absolute_import, unicode_literals
 
 import os
+from itertools import product
 
 from django.contrib.staticfiles.storage import staticfiles_storage
 from django.conf import settings
@@ -70,9 +71,12 @@ def get_possible_import_paths(self, path, relative_to=None):
 
         dirname, filename = os.path.split(path)
         name, ext = os.path.splitext(filename)
-        if not ext:
-            for extension in self.supported_extensions:
-                paths.append(os.path.join(dirname, name + extension))
+        if ext:
+            search_exts = [ext]
+        else:
+            search_exts = self.supported_extensions
+        for prefix, suffix in product(('_', ''), search_exts):
+            paths.append(os.path.join(dirname, prefix + name + suffix))
         return paths
 
     def _find_source_file(self, filename, relative_to=None):

testproject/testproject/static/css/_baz.scss

@@ -0,0 +1,3 @@
+.baz {
+  color: #123456;
+}

tests/test_scss.py

@@ -26,6 +26,9 @@
 with open(os.path.join(settings.BASE_DIR, 'testproject', 'static', 'css', 'css_file.css')) as f:
     CSS_CONTENTS = f.read()
 
+with open(os.path.join(settings.BASE_DIR, 'testproject', 'static', 'css', '_baz.scss')) as f:
+    BAZ_CONTENTS = f.read()
+
 
 class CompilerTestMixin(object):
     def setUp(self):
@@ -77,6 +80,10 @@ def test_no_extension_import_css(self):
         actual = self.compiler.compile(scss_string='@import "/css/css_file";')
         self.assertEqual(clean_css(actual), clean_css(CSS_CONTENTS))
 
+    def test_import_underscore_file(self):
+        actual = self.compiler.compile(scss_string='@import "/css/baz";')
+        self.assertEqual(clean_css(actual), clean_css(BAZ_CONTENTS))
+
 
 @override_settings(DEBUG=True)
 class FindersImportTest(ImportTestMixin, TestCase):