diff --git a/casacore/.aipsrc b/casacore/.aipsrc
index 61c999f..ac4d1e0 100644
--- a/casacore/.aipsrc
+++ b/casacore/.aipsrc
@@ -1 +1 @@
-measures.directory: ${CASACORE_DATA}
\ No newline at end of file
+measures.directory: ${CASACORE_DATA}
diff --git a/casacore/__init__.py b/casacore/__init__.py
index 14878de..c5aaa54 100644
--- a/casacore/__init__.py
+++ b/casacore/__init__.py
@@ -10,4 +10,4 @@
 if "AIPSPATH" not in os.environ:
     root = os.path.dirname(__file__)
     os.environ["AIPSPATH"] = root
-    os.environ["CASACORE_DATA"] = os.path.join(root, "data")
\ No newline at end of file
+    os.environ["CASACORE_DATA"] = os.path.join(root, "data")
diff --git a/setup.py b/setup.py
index cd53db0..732dda0 100755
--- a/setup.py
+++ b/setup.py
@@ -254,9 +254,11 @@ def get_extensions():
     flag for flag in opt.split() if flag != '-Wstrict-prototypes'
 )
 
+
 def create_symlink(src_dir, dest_dir):
     """
-    Create a symbolic link from `src_dir` to `dest_dir`, unless `dest_dir` already exists.
+    Create a symbolic link from `src_dir` to `dest_dir`, unless `dest_dir`
+    already exists.
     Return `dest_dir` upon success, or an empty string upon failure.
     """
     try:
@@ -271,7 +273,7 @@ def create_symlink(src_dir, dest_dir):
 class my_build_ext(build_ext_module.build_ext):
     def run(self):
         casacoreversion = find_casacore_version()
-        if casacoreversion is not None and  LooseVersion(casacoreversion) < LooseVersion(__mincasacoreversion__):
+        if casacoreversion is not None and LooseVersion(casacoreversion) < LooseVersion(__mincasacoreversion__):
             errorstr = "Your casacore version is too old. Minimum is " + __mincasacoreversion__ + \
                        ", you have " + casacoreversion
             if casacoreversion == "2.5.0":