python 2 compatibility (also with the new travis build)

jedi/evaluate/imports.py

@@ -408,6 +408,7 @@ class _Importer(object):
                 path += '/__init__.py'
                 with open(path, 'rb') as f:
                     source = f.read()
+                    source = source.replace(b'\n', b'\r\n')
             else:
                 source = current_namespace[0].read()
                 current_namespace[0].close()

test/test_evaluate/test_pyc.py

@@ -6,11 +6,12 @@ Test completions from *.pyc files:
  - delete the pure python dummy module
  - try jedi on the generated *.pyc
 """
-import compileall
 import os
 import shutil
 import sys
 
+import pytest
+
 import jedi
 from ..helpers import cwd_at
 
@@ -29,6 +30,7 @@ def generate_pyc():
         pass
     with open("dummy_package/dummy.py", 'w') as f:
         f.write(SRC)
+    import compileall
     compileall.compile_file("dummy_package/dummy.py")
     os.remove("dummy_package/dummy.py")
 
@@ -43,6 +45,8 @@ def generate_pyc():
             shutil.copy(os.path.join("dummy_package/__pycache__", f), dst)
 
 
+# Python 2.6 does not necessarily come with `compileall.compile_file`.
+@pytest.mark.skipif("sys.version_info > (2,6)")
 @cwd_at('test/test_evaluate')
 def test_pyc():
     """

test/test_parser/test_fast_parser.py

@@ -1,6 +1,7 @@
 from textwrap import dedent
 
 import jedi
+from jedi._compatibility import u
 from jedi.parser.fast import FastParser
 
 
@@ -42,7 +43,7 @@ def test_class_in_docstr():
 
 
 def test_carriage_return_splitting():
-    source = dedent('''
+    source = u(dedent('''
 
 
 
@@ -50,7 +51,7 @@ def test_carriage_return_splitting():
 
         class Foo():
             pass
-        ''')
+        '''))
     source = source.replace('\n', '\r\n')
     p = FastParser(source)
     assert [str(n) for n in p.module.get_defined_names()] == ['Foo']