Set python logging for obs packages

Although this command seems to be gen2 butler at the moment.

bin.src/showCamera.py

@@ -20,11 +20,11 @@
 # the GNU General Public License along with this program.  If not,
 # see <http://www.lsstcorp.org/LegalNotices/>.
 #
+import logging
 import sys
 import matplotlib.pyplot as plt
 
 import lsst.afw.cameraGeom.utils as cameraGeomUtils
-from lsst.log import Log
 
 if __name__ == '__main__':
     import argparse
@@ -64,10 +64,10 @@
         print("Unable to find mapper {mapperName} in {obsPackageName}", file=sys.stderr)
         sys.exit(1)
     #
-    # Control verbosity from butler
+    # Control verbosity from obs packages
     #
-    log = Log.getLogger("CameraMapper")
-    log.setLevel(Log.FATAL)
+    log = logging.getLogger("lsst.obs")
+    log.setLevel(logging.FATAL)
     #
     # And finally find the camera
     #

python/lsst/afw/cameraGeom/utils.py

@@ -499,7 +499,7 @@ def getCcdImage(self, ccd, imageFactory=afwImage.ImageF, binSize=1, asMaskedImag
         if self.callback:
             try:
                 im = self.callback(im, ccd, imageSource=self)
-            except Exception as e:
+            except Exception:
                 if self.verbose:
                     log.exception("callback failed.")
                 im = imageFactory(*bbox.getDimensions())
@@ -917,7 +917,7 @@ def makeImageFromCamera(camera, detectorNameList=None, background=numpy.nan, buf
         imView = camIm.Factory(camIm, bbox, afwImage.LOCAL)
         try:
             imView[:] = im
-        except pexExceptions.LengthError as e:
+        except pexExceptions.LengthError:
             log.exception("Unable to fit image for detector \"%s\" into image of camera.", det.getName())
 
     return camIm

python/lsst/afw/image/_image/_fitsIoWithOptions.py

@@ -29,6 +29,7 @@
 
 _LOG = logging.getLogger("lsst.afw.image")
 
+
 # This must be added to a class as a *classmethod*, for example:
 #
 # @continueclass