diff --git a/python_http_client/exceptions.py b/python_http_client/exceptions.py
index 4df8956..b6343f2 100644
--- a/python_http_client/exceptions.py
+++ b/python_http_client/exceptions.py
@@ -2,7 +2,7 @@
 
 
 class HTTPError(Exception):
-    ''' Base of all other errors'''
+    """ Base of all other errors"""
 
     def __init__(self, error):
         self.status_code = error.code
@@ -13,7 +13,7 @@ def __init__(self, error):
     @property
     def to_dict(self):
         """
-        :return: dict of response erro from the API
+        :return: dict of response error from the API
         """
         return json.loads(self.body.decode('utf-8'))
 
diff --git a/tests/test_repofiles.py b/tests/test_repofiles.py
index dff4d23..544ce77 100644
--- a/tests/test_repofiles.py
+++ b/tests/test_repofiles.py
@@ -26,13 +26,13 @@ class RepoFiles(unittest.TestCase):
     ]
 
     def _all_file(self, files):
-        '''
+        """
         Checks the list of files and sees if they exist. If all of them don't
         exist, returns False. Otherwise, return True.
-        '''
+        """
         return all(map(lambda f: not path.isfile(f), files))
 
-    def test_file_existance(self):
+    def test_file_existence(self):
         missing = list(filter(self._all_file, self.FILES))
         self.assertTrue(len(missing) == 0,
                         "Files %s aren't found" % str(missing))
diff --git a/tests/test_unit.py b/tests/test_unit.py
index f9136c5..7f11d46 100644
--- a/tests/test_unit.py
+++ b/tests/test_unit.py
@@ -64,7 +64,7 @@ def __init__(self, host, response_code):
 
     def _make_request(self, opener, request):
 
-        if 200 <= self.response_code < 299:   # if successsful code
+        if 200 <= self.response_code < 299:   # if successful code
             return MockResponse(self.response_code)
         else:
             raise handle_error(MockException(self.response_code))