Remove unused imports and unused local variables.

Correct issues reported by pyflakes.

Author: pavoljuhas

diffpy/utils/parsers/loaddata.py

@@ -15,6 +15,7 @@
 
 # Turn on the "with" statement for Python 2.5.
 from __future__ import with_statement
+import numpy
 
 
 def loadData(filename, minrows=10, **kwargs):
@@ -145,7 +146,6 @@ def read(self, filename):
 
 
     def readfp(self, fp, append=False):
-        import numpy
         self._reset()
         # try to read lines from fp first
         self._lines = fp.readlines()
@@ -158,7 +158,6 @@ def readfp(self, fp, append=False):
 
 
     def _findDataBlocks(self):
-        import numpy
         mincols = 1
         if self.usecols is not None and len(self.usecols):
             mincols = max(mincols, max(self.usecols) + 1)
@@ -183,7 +182,6 @@ def _findDataBlocks(self):
         n1[lr.nw1[:-1]] = True
         lw.line = n1.cumsum()
         lw.col = lw.idx - lr.nw0[lw.line]
-        flag = None
         lw.ok = True
         values = nwords * [0.0]
         for i, w in enumerate(self._words):

diffpy/utils/tests/__init__.py

@@ -27,6 +27,7 @@ def testsuite():
     '''.split()
     suite = unittest.TestSuite()
     loader = unittest.defaultTestLoader
+    mobj = None
     for mname in modulenames:
         exec ('import %s as mobj' % mname)
         suite.addTests(loader.loadTestsFromModule(mobj))

diffpy/utils/tests/testloaddata.py

@@ -16,7 +16,6 @@ class TestLoadData(unittest.TestCase):
     def test_loadData_default(self):
         """check loadData() with default options
         """
-        d1c = numpy.arange(1, 6)
         d2c = numpy.array([[3, 31], [4, 32], [5, 33]])
         self.assertRaises(IOError, loadData, 'doesnotexist')
         d = loadData(loaddata01)

diffpy/utils/wx/gridutils.py

@@ -91,7 +91,6 @@ def limitSelectionToRows(grid, indices):
     '''
     import bisect
     if not indices:  return
-    cols = grid.GetNumberCols()
     rowblocks = _indicesToBlocks(indices)
     cindices = getSelectionColumns(grid) or [grid.GetGridCursorCol()]
     colblocks = _indicesToBlocks(cindices)