opencv : Fix pep8 style issues

1 files changed, 30 insertions, 19 deletions

diff --git a/var/spack/repos/builtin/packages/opencv/package.py b/var/spack/repos/builtin/packages/opencv/package.py
index 3d887f0775..301ac46c0e 100644
--- a/var/spack/repos/builtin/packages/opencv/package.py
+++ b/var/spack/repos/builtin/packages/opencv/package.py
@@ -26,22 +26,28 @@ from spack import *
 
 
 class Opencv(Package):
+    """OpenCV is released under a BSD license and hence it's free for both
+    academic and commercial use. It has C++, C, Python and Java interfaces and
+    supports Windows, Linux, Mac OS, iOS and Android. OpenCV was designed for
+    computational efficiency and with a strong focus on real-time applications.
+    Written in optimized C/C++, the library can take advantage of multi-core
+    processing. Enabled with OpenCL, it can take advantage of the hardware
+    acceleration of the underlying heterogeneous compute platform. Adopted all
+    around the world, OpenCV has more than 47 thousand people of user community
+    and estimated number of downloads exceeding 9 million. Usage ranges from
+    interactive art, to mines inspection, stitching maps on the web or through
+    advanced robotics.
     """
-    OpenCV is released under a BSD license and hence it's free for both academic and commercial use. It has C++, C,
-    Python and Java interfaces and supports Windows, Linux, Mac OS, iOS and Android. OpenCV was designed for
-    computational efficiency and with a strong focus on real-time applications. Written in optimized C/C++, the library
-    can take advantage of multi-core processing. Enabled with OpenCL, it can take advantage of the hardware
-    acceleration of the underlying heterogeneous compute platform. Adopted all around the world, OpenCV has more than
-    47 thousand people of user community and estimated number of downloads exceeding 9 million. Usage ranges from
-    interactive art, to mines inspection, stitching maps on the web or through advanced robotics.
-    """
+
     homepage = 'http://opencv.org/'
     url = 'https://github.com/Itseez/opencv/archive/3.1.0.tar.gz'
 
     version('3.1.0', '70e1dd07f0aa06606f1bc0e3fa15abd3')
 
-    variant('shared', default=True, description='Enables the build of shared libraries')
-    variant('debug', default=False, description='Builds a debug version of the libraries')
+    variant('shared', default=True,
+            description='Enables the build of shared libraries')
+    variant('debug', default=False,
+            description='Builds a debug version of the libraries')
 
     variant('eigen', default=True, description='Activates support for eigen')
     variant('ipp', default=True, description='Activates support for IPP')
@@ -66,24 +72,29 @@ class Opencv(Package):
         cmake_options = []
         cmake_options.extend(std_cmake_args)
 
-        cmake_options.extend(['-DCMAKE_BUILD_TYPE:STRING=%s' % ('Debug' if '+debug' in spec else 'Release'),
-                              '-DBUILD_SHARED_LIBS:BOOL=%s' % ('ON' if '+shared' in spec else 'OFF'),
-                              '-DENABLE_PRECOMPILED_HEADERS:BOOL=OFF',
-                              '-DWITH_IPP:BOOL=%s' % ('ON' if '+ipp' in spec else 'OFF'),
-                              '-DWITH_CUDA:BOOL=%s' % ('ON' if '+cuda' in spec else 'OFF')])
+        cmake_options.extend(
+            ['-DCMAKE_BUILD_TYPE:STRING=%s' % (
+                'Debug' if '+debug' in spec else 'Release'),
+             '-DBUILD_SHARED_LIBS:BOOL=%s' % (
+                'ON' if '+shared' in spec else 'OFF'),
+             '-DENABLE_PRECOMPILED_HEADERS:BOOL=OFF',
+             '-DWITH_IPP:BOOL=%s' % (
+                'ON' if '+ipp' in spec else 'OFF'),
+             '-DWITH_CUDA:BOOL=%s' % (
+                'ON' if '+cuda' in spec else 'OFF')])
 
         python_prefix = spec['python'].prefix
         python_lib = python_prefix.lib
         if spec.satisfies('^python@3:'):
             python = join_path(python_prefix.bin, 'python3')
             cmake_options.extend(['-DBUILD_opencv_python3=ON',
-                                  '-DPYTHON_EXECUTABLE={0}'.format(python),
-                                  '-DPYTHON_LIBRARIES={0}'.format(python_lib)])
+                                  '-DPYTHON_EXECUTABLE=%s' % (python),
+                                  '-DPYTHON_LIBRARIES=%s' % (python_lib)])
         elif spec.satisfies('^python@2:3'):
             python = join_path(python_prefix.bin, 'python2')
             cmake_options.extend(['-DBUILD_opencv_python2=ON',
-                                  '-DPYTHON_EXECUTABLE={0}'.format(python),
-                                  '-DPYTHON_LIBRARIES={0}'.format(python_lib)])
+                                  '-DPYTHON_EXECUTABLE=%s' % (python),
+                                  '-DPYTHON_LIBRARIES=%s' % (python_lib)])
 
         with working_dir('spack_build', create=True):
             cmake('..', *cmake_options)