Remove Python 2 compatibility code

cylp/cpp/IClpSimplex.cpp

@@ -8,15 +8,6 @@
 #include "OsiClpSolverInterface.hpp"
 #include <sstream>
 
-// define PyInt_* macros for Python 3.x
-#ifndef PyInt_Check
-#define PyInt_Check             PyLong_Check
-#define PyInt_FromLong          PyLong_FromLong
-#define PyInt_AsLong            PyLong_AsLong
-#define PyInt_Type              PyLong_Type
-#endif
-
-
 int IClpSimplex::argWeightedMax(PyObject* arr, PyObject* arr_ind, PyObject* w, PyObject* w_ind){
     //_import_array();
 
@@ -28,9 +19,9 @@ int IClpSimplex::argWeightedMax(PyObject* arr, PyObject* arr_ind, PyObject* w, P
     int wholeArray = false;
 
     double w_num_val;
-    if (PyInt_Check(w)){
+    if (PyLong_Check(w)){
         wIsNum = true;
-        w_num_val = (double)PyInt_AsLong(w);
+        w_num_val = PyLong_AsDouble(w);
     }else if (PyFloat_Check(w)){
         wIsNum = true;
         w_num_val = PyFloat_AsDouble(w);
@@ -41,7 +32,7 @@ int IClpSimplex::argWeightedMax(PyObject* arr, PyObject* arr_ind, PyObject* w, P
     }
 
 
-    if (PyInt_Check(arr_ind) || PyFloat_Check(arr_ind)){
+    if (PyLong_Check(arr_ind) || PyFloat_Check(arr_ind)){
         wholeArray = true;
     }else if (!PyArray_Check(arr_ind)){
         PyErr_SetString(PyExc_ValueError,

cylp/cpp/ICoinIndexedVector.cpp

@@ -1,13 +1,5 @@
 #include "ICoinIndexedVector.hpp"
 
-// define PyInt_* macros for Python 3.x
-#ifndef PyInt_Check
-#define PyInt_Check             PyLong_Check
-#define PyInt_FromLong          PyLong_FromLong
-#define PyInt_AsLong            PyLong_AsLong
-#define PyInt_Type              PyLong_Type
-#endif
-
 ICoinIndexedVector::ICoinIndexedVector(){
     _import_array();
 }
@@ -68,8 +60,8 @@ void ICoinIndexedVector::assign(PyObject* ind, PyObject* other){
 
     //_import_array();
 
-    if( PyInt_Check(other) ) {
-        val = (double)PyInt_AsLong(other);
+    if( PyLong_Check(other) ) {
+        val = PyLong_AsDouble(other);
         other_is_num = 1;
     } else if( PyFloat_Check(other) ) {
         val = PyFloat_AsDouble(other);
@@ -84,8 +76,8 @@ void ICoinIndexedVector::assign(PyObject* ind, PyObject* other){
     }
 
 
-    if( PyInt_Check(ind) ) {
-        idx = (double)PyInt_AsLong(ind);
+    if( PyLong_Check(ind) ) {
+        idx = PyLong_AsDouble(ind);
         ind_is_num = 1;
     } else if( PyFloat_Check(ind) ) {
         idx = PyFloat_AsDouble(ind);

cylp/cy/CyCbcModel.pyx

@@ -1,10 +1,6 @@
 # cython: embedsignature=True
 
 from itertools import product
-try:
-    from itertools import izip
-except ImportError:  # Python 3 does not have izip, use zip
-    izip = zip
 from cylp.py.mip import NodeCompareBase
 from cylp.py.modeling.CyLPModel import CyLPSolution
 from cylp.cy.CyCutGeneratorPythonBase cimport CyCutGeneratorPythonBase

cylp/cy/CyClpPrimalColumnSteepest.pyx

@@ -1,8 +1,5 @@
 # cython: embedsignature=True
 
-from __future__ import print_function
-
-
 #cimport cClpPrimalColumnSteepest
 from cClpPrimalColumnSteepest cimport c_ClpPrimalColumnSteepest, new_ClpPrimalColumnSteepest
 #cimport cClpPrimalColumnPivot

cylp/cy/CyClpSimplex.pyx

@@ -2,15 +2,9 @@
 # cython: profile=True
 # cython: embedsignature=True
 
-from __future__ import print_function
-
 import inspect
 import os.path
 from itertools import product
-try:
-    from itertools import izip
-except ImportError: # Python 3 does not have izip, use zip
-    izip = zip
 import numpy as np
 cimport numpy as np
 from scipy import sparse
@@ -160,7 +154,7 @@ cdef class CyClpSimplex:
                 #        self.setObjectiveCoefficient(i, o[0,i])
                     #if not isinstance(o, sparse.coo_matrix):
                     #    o = o.tocoo()
-                    #for i, j, v in izip(o.row, o.col, o.data):
+                    #for i, j, v in zip(o.row, o.col, o.data):
                     #    self.setObjectiveCoefficient(j, v)
                 #self.setObjectiveArray(
                 #       self.cyLPModel.objective.astype(np.double))

cylp/cy/CyCoinIndexedVector.pyx

@@ -1,7 +1,5 @@
 # cython: embedsignature=True
 
-from __future__ import print_function
-
 cdef class CyCoinIndexedVector:
     '''
     ``CyCoinIndexedVector`` interfaces ``CoinIndexedVector``.

cylp/cy/CyPEPivot.pyx

@@ -1,7 +1,5 @@
 # cython: embedsignature=True
 
-from __future__ import print_function
-
 import numpy as np
 cimport numpy as np
 from cylp.cy cimport CyPEPivot

cylp/cy/CySolve.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import sys
 from cylp.cy.CyTest import CySolve
 

cylp/cy/CyTest.pyx

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import sys
 from time import perf_counter
 from cylp.cy.CyClpSimplex cimport CyClpSimplex

cylp/input/fileDownloader.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import urllib
 f = urllib.urlopen("http://www.netlib.org/lp/data/")
 lines = f.read().splitlines()

cylp/input/netlib/fileDownloader.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import urllib
 import os
 

cylp/py/PySolve.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import sys
 from time import perf_counter
 import cProfile

cylp/py/QP/GQP.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import QP
 import numpy as np
 import Constants

cylp/py/QP/QP.py

@@ -1,6 +1,5 @@
 #UNDER DEVELOPMENT AND TEST
 
-from __future__ import print_function
 import sys
 import cProfile
 import inspect

cylp/py/QP/QPGen.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 #import random
 import numpy as np
 from numpy import random

cylp/py/mip/GomoryCutGenerator.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import os
 import math
 import numpy as np

cylp/py/modeling/CyLPModel.py

@@ -119,15 +119,7 @@
 
 '''
 
-from __future__ import print_function
 from functools import reduce
-
-# Python 3 does not have long, only int
-try:
-    long
-except NameError:
-    long = int
-
 from itertools import product
 from copy import deepcopy
 from operator import mul
@@ -136,7 +128,7 @@
 from scipy.sparse import identity, lil_matrix
 from cylp.py.utils.util import Ind, getMultiDimMatrixIndex, getTupleIndex
 
-NUMBERS = (int, float, long, np.int64, np.int32, np.double)
+NUMBERS = (int, float, np.int64, np.int32, np.double)
 def isNumber(n):
     return (isinstance(n, NUMBERS) or
             (isinstance(n, CyLPArray) and n.shape == ()))
@@ -524,7 +516,7 @@ def perform(self, opr, left=None, right=None):
                 #dim = left.parentDim
             else:
 #                # FIXME: Think of the correct way to check bound dimensions
-#                if (not isinstance(right, (float, long, int)) and
+#                if (not isinstance(right, (float, int)) and
 #                            right.shape[0] != self.nRows):
 #                    #raise Exception('Bound dim: %d, expected dim: %d '
 #                    #                % (right.shape[0], self.nRows))

cylp/py/pivots/DualDantzigPivot.py

@@ -4,7 +4,6 @@
 for testing purposes we implement one in Python.
 '''
 
-from __future__ import print_function
 import sys
 import numpy as np
 from operator import itemgetter

cylp/py/pivots/PositiveEdgePivot.py

@@ -3,7 +3,6 @@
 pivot selection rule.
 '''
 
-from __future__ import print_function
 import random
 import numpy as np
 from cylp.cy import CyCoinIndexedVector

cylp/py/pivots/WolfePivot.py

@@ -1,8 +1,3 @@
-from __future__ import print_function
-try:
-    from itertools import izip
-except ImportError:   # Python 3 does not have izip use zip
-    izip = zip
 import numpy as np
 from .PivotPythonBase import PivotPythonBase
 
@@ -96,6 +91,6 @@ def setComplement(self, model, v1, v2):
         v2n = v2.name
         listv1 = np.array(model.inds.varIndex[v1n])[v1.indices]
         listv2 = np.array(model.inds.varIndex[v2n])[v2.indices]
-        for i, j in izip(listv1, listv2):
+        for i, j in zip(listv1, listv2):
             self.complementarityList[i], self.complementarityList[j] = j, i
 

cylp/py/pivots/WolfePivotPE.py

@@ -1,5 +1,3 @@
-from __future__ import print_function
-from itertools import izip
 import random
 import numpy as np
 from cylp.cy import CyCoinIndexedVector
@@ -251,7 +249,7 @@ def setComplement(self, model, v1, v2):
         v2n = v2.name
         listv1 = np.array(model.inds.varIndex[v1n])[v1.indices]
         listv2 = np.array(model.inds.varIndex[v2n])[v2.indices]
-        for i, j in izip(listv1, listv2):
+        for i, j in zip(listv1, listv2):
             (self.complementarityList[i], self.complementarityList[j]) = \
              (self.complementarityList[j], self.complementarityList[i])
 

cylp/py/utils/readSetcovering.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import numpy as np
 from scipy import sparse
 from cylp.cy import CyClpSimplex

cylp/py/utils/sparseUtil.py

@@ -10,18 +10,9 @@
 regardless of their dimension alignments. Fills with zeros where necessary.
 
 '''
-
-# Python 3 does not have long, only int
-try:
-    long
-except NameError:
-    long = int
-
 from scipy import sparse
 import numpy as np
 
-
-
 class csc_matrixPlus(sparse.csc_matrix):
     def __init__(self, arg1, shape=None, dtype=None,
                  copy=False, fromMatrix=None):
@@ -53,7 +44,7 @@ def __setitem__(self, location, val):
 
         '''
         iRow, iCol = location
-        if not isinstance(val, (int, long, float)):
+        if not isinstance(val, (int, float)):
             return sparse.csc_matrix.__setitem__(self, (iRow, iCol), val)
 
         nCols = self.shape[1]
@@ -117,7 +108,7 @@ def addColumns(self, nCol):
 
     def __getitem__(self, key):
         ret = sparse.csc_matrix.__getitem__(self, key)
-        if isinstance(ret, (int, long, float)):
+        if isinstance(ret, (int, float)):
             return ret
         # This seems to cause some potential problems when the result is 1x1
         # It should really be returned as an int/float in that case, but
@@ -268,7 +259,7 @@ def __setitem__(self, location, val):
 
         '''
         iRow, iCol = location
-        if not isinstance(val, (int, long, float)):
+        if not isinstance(val, (int, float)):
             return sparse.csr_matrix.__setitem__(self, (iRow, iCol), val)
 
         nRows = self.shape[0]
@@ -356,7 +347,7 @@ def addRows(self, nRow):
 
     def __getitem__(self, key):
         ret = sparse.csr_matrix.__getitem__(self, key)
-        if isinstance(ret, (int, long, float)):
+        if isinstance(ret, (int, float)):
             return ret
         # This seems to cause some potential problems when the result is 1x1
         # It should really be returned as an int/float in that case, but

cylp/py/utils/util.py

@@ -1,11 +1,3 @@
-from __future__ import print_function
-
-# Python 3 does not have long, only int
-try:
-    long
-except NameError:
-    long = int
-
 import numpy as np
 from math import atan2
 from cylp.py import Constants
@@ -138,7 +130,7 @@ def __init__(self, key, dim):
                 start = sl.start
             self.indices = range(start, stop)
             self.dim = dim
-        elif isinstance(key, (int, long)):
+        elif isinstance(key, int):
             if key >= dim:
                 raise Exception('Index (%d) out of range (%d)' % (key, dim))
             self.indices = [key]

cylp/tests/test_MIP.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import unittest
 import inspect
 import os

cylp/tests/test_QP.py

@@ -1,4 +1,3 @@
-from __future__ import print_function
 import unittest
 import inspect
 import os

fixBinaries.py

@@ -2,7 +2,6 @@
 This module contains code that copies CBC libraries into CyLP's source,
 and make CyLP binaries' refernces to them relative.
 '''
-from __future__ import print_function
 import distutils.util
 import sys
 import os