flake8 fixes

lib/spack/llnl/util/filesystem.py

@@ -430,12 +430,14 @@ def fix_darwin_install_name(path):
                     subprocess.Popen(["install_name_tool", "-change", dep, loc, lib], stdout=subprocess.PIPE).communicate()[0]  # NOQA: ignore=E501
                     break
 
+
 def to_lib_name(library):
     """Transforms a path to the library /path/to/lib<name>.xyz into <name>
     """
     # Assume libXYZ.suffix
     return os.path.basename(library)[3:].split(".")[0]
 
+
 def to_link_flags(library):
     """Transforms a path to a <library> into linking flags -L<dir> -l<name>.
 

var/spack/repos/builtin/packages/hypre/package.py

@@ -23,7 +23,9 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ##############################################################################
 from spack import *
-import os, sys
+import os
+import sys
+
 
 class Hypre(Package):
     """Hypre is a library of high performance preconditioners that
@@ -37,7 +39,7 @@ class Hypre(Package):
     version('2.10.0b', '768be38793a35bb5d055905b271f5b8e')
 
     # hypre does not know how to build shared libraries on Darwin
-    variant('shared', default=sys.platform!='darwin', description="Build shared library version (disables static library)")
+    variant('shared', default=(sys.platform != 'darwin'), description="Build shared library version (disables static library)")
     # SuperluDist have conflicting headers with those in Hypre
     variant('internal-superlu', default=True, description="Use internal Superlu routines")