diff --git a/casimport/__init__.py b/casimport/__init__.py
index 961192d..bd39908 100644
--- a/casimport/__init__.py
+++ b/casimport/__init__.py
@@ -122,7 +122,8 @@ class FileDirCAS(object):
 		return False
 
 	def fetch_data(self, url):
-		'''Given the URL (must be a hash URL), return the code for it.'''
+		'''Given the URL (must be a hash URL), return the code for
+		it.'''
 
 		self.refresh_dir()
 
@@ -150,8 +151,10 @@ class CASFinder(MetaPathFinder, Loader):
 		self._loaders = []
 		self._aliases = {}
 
-		if [ x for x in sys.meta_path if isinstance(x, self.__class__) ]:
-			raise RuntimeError('cannot register more than on CASFinder')
+		if [ x for x in sys.meta_path if
+		    isinstance(x, self.__class__) ]:
+			raise RuntimeError(
+			    'cannot register more than on CASFinder')
 
 		sys.meta_path.append(self)
 
@@ -164,7 +167,8 @@ class CASFinder(MetaPathFinder, Loader):
 	def load_aliases(self, name):
 		'''Load the aliases from the module with the passed in name.'''
 
-		aliases = importlib.resources.read_text(sys.modules[name], 'cas_aliases.txt')
+		aliases = importlib.resources.read_text(sys.modules[name],
+		    'cas_aliases.txt')
 		self._aliases.update(self._parsealiases(aliases))
 
 	@staticmethod
@@ -189,8 +193,10 @@ class CASFinder(MetaPathFinder, Loader):
 
 		# split out the hashes
 		for items in list(ret.values()):
-			lst = [ x for x in items if not x.startswith('hash://') ]
-			for h in [ x for x in items if x.startswith('hash://') ]:
+			lst = [ x for x in items if
+			    not x.startswith('hash://') ]
+			for h in [ x for x in items if
+			    x.startswith('hash://') ]:
 				h = cls._makebasichashurl(h)
 				ret[h] = lst
 
@@ -228,7 +234,8 @@ class CASFinder(MetaPathFinder, Loader):
 			ver, typ, arg = parts[1].split('_')
 			if typ == 'f':
 				# make hash url:
-				hashurl = 'hash://sha256/%s' % bytes.fromhex(arg).hex()
+				hashurl = ('hash://sha256/%s' %
+				    bytes.fromhex(arg).hex())
 				hashurl = urllib.parse.urlparse(hashurl)
 				for l in self._loaders:
 					ispkg = l.is_package(hashurl)
@@ -244,7 +251,8 @@ class CASFinder(MetaPathFinder, Loader):
 				else:
 					raise ValueError('unable to find bash hash url for alias %s' % repr(arg))
 
-			ms = ModuleSpec(fullname, self, is_package=False, loader_state=(hashurl,))
+			ms = ModuleSpec(fullname, self, is_package=False,
+			    loader_state=(hashurl,))
 
 		return ms
 
@@ -265,7 +273,8 @@ class CASFinder(MetaPathFinder, Loader):
 					pass
 
 			else:
-				for url in self._aliases[self._makebasichashurl(url)]:
+				for url in self._aliases[
+				    self._makebasichashurl(url)]:
 					url = urllib.parse.urlparse(url)
 					for load in self._loaders:
 						try:
@@ -338,7 +347,8 @@ class Test(unittest.TestCase):
 	def setUp(self):
 		# clear out the default casfinder if there is one
 		self.old_meta_path = sys.meta_path
-		sys.meta_path = [ x for x in sys.meta_path if not isinstance(x, CASFinder) ]
+		sys.meta_path = [ x for x in sys.meta_path if
+		    not isinstance(x, CASFinder) ]
 
 		# setup temporary directory
 		d = pathlib.Path(os.path.realpath(tempfile.mkdtemp()))
@@ -346,7 +356,8 @@ class Test(unittest.TestCase):
 		self.tempdir = d / 'subdir'
 		self.tempdir.mkdir()
 
-		self.fixtures = pathlib.Path(__file__).parent.parent / 'fixtures'
+		self.fixtures = \
+		    pathlib.Path(__file__).parent.parent / 'fixtures'
 
 	def tearDown(self):
 		# restore environment
@@ -451,12 +462,13 @@ class Test(unittest.TestCase):
 		with tempset(os.environ, 'HOME', str(temphome)):
 			try:
 				with CASFinder() as f, \
-				    tempattrset(sys.modules[__name__], 'load_aliases',
-				    f.load_aliases):
+				    tempattrset(sys.modules[__name__],
+				    'load_aliases', f.load_aliases):
 					defaultinit(f)
 
 					# and that hello.py is in the cache
-					shutil.copy(self.fixtures / 'hello.py', cachedir)
+					shutil.copy(self.fixtures / 'hello.py',
+					    cachedir)
 
 					# that the import is successful
 					import randpkg
@@ -504,13 +516,13 @@ class Test(unittest.TestCase):
 
 	def test_overlappingaliases(self):
 		# make sure that an aliases file is consistent and does not
-		# override other urls.  That is that any hashes are consistent,
-		# and that they have at least one root hash that is the same, and
-		# will be used for fetching.
+		# override other urls.  That is that any hashes are
+		# consistent, and that they have at least one root hash that
+		# is the same, and will be used for fetching.
 		#
-		# Likely will also have to deal w/ an issue where two aliases share
-		# sha256, and a third shares sha512, which in this case, BOTH hashse
-		# have to be checked.
+		# Likely will also have to deal w/ an issue where two
+		# aliases share sha256, and a third shares sha512, which in
+		# this case, BOTH hashse have to be checked.
 		pass
 
 	def test_loaderpriority(self):