diff --git a/jedi/evaluate/compiled/subprocess/__init__.py b/jedi/evaluate/compiled/subprocess/__init__.py
index 7b0ef74c..4c251076 100644
--- a/jedi/evaluate/compiled/subprocess/__init__.py
+++ b/jedi/evaluate/compiled/subprocess/__init__.py
@@ -256,6 +256,8 @@ class Listener(object):
             try:
                 result = False, self._run(*payload)
             except Exception as e:
+                #import traceback
+                #print_to_stderr(traceback.format_exc())
                 result = True, e
 
             pickle.dump(result, file=stdout, protocol=_PICKLE_PROTOCOL)
diff --git a/jedi/evaluate/imports.py b/jedi/evaluate/imports.py
index d00fdcbc..eac4c69e 100644
--- a/jedi/evaluate/imports.py
+++ b/jedi/evaluate/imports.py
@@ -20,7 +20,7 @@ from parso.tree import search_ancestor
 from parso.cache import parser_cache
 from parso import python_bytes_to_unicode
 
-from jedi._compatibility import unicode, ImplicitNSInfo
+from jedi._compatibility import unicode, ImplicitNSInfo, force_unicode
 from jedi import debug
 from jedi import settings
 from jedi.evaluate import sys_path
@@ -254,12 +254,12 @@ class Importer(object):
             if self.import_path:  # TODO is this check really needed?
                 for path in sys_path.traverse_parents(self.file_path):
                     if os.path.basename(path) == self.str_import_path[0]:
-                        in_path.append(os.path.dirname(path))
+                        in_path.append(force_unicode(os.path.dirname(path)))
 
             # Since we know nothing about the call location of the sys.path,
             # it's a possibility that the current directory is the origin of
             # the Python execution.
-            sys_path_mod.insert(0, os.path.dirname(self.file_path))
+            sys_path_mod.insert(0, force_unicode(os.path.dirname(self.file_path)))
 
         return in_path + sys_path_mod
 
diff --git a/jedi/evaluate/project.py b/jedi/evaluate/project.py
index 80d618f5..1ea043ea 100644
--- a/jedi/evaluate/project.py
+++ b/jedi/evaluate/project.py
@@ -1,3 +1,4 @@
+from jedi._compatibility import force_unicode
 from jedi.evaluate.sys_path import detect_additional_paths
 from jedi.cache import memoize_method
 
@@ -30,4 +31,8 @@ class Project(object):
         if self._script_path is None:
             return sys_path
 
-        return sys_path + detect_additional_paths(self._evaluator, self._script_path)
+        added_paths = map(
+            force_unicode,
+            detect_additional_paths(self._evaluator, self._script_path)
+        )
+        return sys_path + added_paths