Version change (#691)

* cleaning of deprecation + change of version * fix some more deprecation issues * updated HISTORY and included Antony Phillips in authors.
coin-or · Jan 12, 2024 · e602a40 · e602a40
1 parent 67e0852
commit e602a40
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diff --git a/AUTHORS b/AUTHORS
@@ -2,3 +2,4 @@ Roy, J.S
 Mitchell, Stuart A
 Christophe-Marie Duquesne (PYGLPK and YAPOSIB bindings)
 Franco Peschiera
+Antony Phillips
diff --git a/HISTORY b/HISTORY
@@ -2,6 +2,14 @@
 #       Copyright S.A.Mitchell (s.mitchell@auckland.ac.nz), 2007-
 #       Copyright F.Peschiera (pchtsp@gmail.com), 2019-
 # See the LICENSE file for copyright information.
+2.8.0 2024-01-12
+    mip start in HiGHS_CMD and SCIP_PY
+    GUROBI solver with environment handling
+    added COPT solver
+    added gurobi, highs, xpress, copt to github actions
+    cbc arm binary
+    fixes to SCIPS
+    took out deprecations in arguments
 2.7.0
     added HiGHS solver
     added XPRESS_PY solver

diff --git a/pulp/apis/__init__.py b/pulp/apis/__init__.py
@@ -156,10 +156,3 @@ def listSolvers(onlyAvailable=False):
             result.append(solver.name)
         del solver
     return result
-
-
-# DEPRECATED aliases:
-get_solver = getSolver
-get_solver_from_json = getSolverFromJson
-get_solver_from_dict = getSolverFromDict
-list_solvers = listSolvers
diff --git a/pulp/apis/coin_api.py b/pulp/apis/coin_api.py
@@ -48,8 +48,6 @@ def __init__(
         mip=True,
         msg=True,
         timeLimit=None,
-        fracGap=None,
-        maxSeconds=None,
         gapRel=None,
         gapAbs=None,
         presolve=None,
@@ -62,7 +60,6 @@ def __init__(
         threads=None,
         logPath=None,
         timeMode="elapsed",
-        mip_start=False,
         maxNodes=None,
     ):
         """
@@ -80,35 +77,10 @@ def __init__(
         :param bool presolve: if True, adds presolve on
         :param bool cuts: if True, adds gomory on knapsack on probing on
         :param bool strong: if True, adds strong
-        :param float fracGap: deprecated for gapRel
-        :param float maxSeconds: deprecated for timeLimit
         :param str timeMode: "elapsed": count wall-time to timeLimit; "cpu": count cpu-time
-        :param bool mip_start: deprecated for warmStart
         :param int maxNodes: max number of nodes during branching. Stops the solving when reached.
         """
 
-        if fracGap is not None:
-            warnings.warn("Parameter fracGap is being deprecated for gapRel")
-            if gapRel is not None:
-                warnings.warn("Parameter gapRel and fracGap passed, using gapRel")
-            else:
-                gapRel = fracGap
-        if maxSeconds is not None:
-            warnings.warn("Parameter maxSeconds is being deprecated for timeLimit")
-            if timeLimit is not None:
-                warnings.warn(
-                    "Parameter timeLimit and maxSeconds passed, using timeLimit"
-                )
-            else:
-                timeLimit = maxSeconds
-        if mip_start:
-            warnings.warn("Parameter mip_start is being deprecated for warmStart")
-            if warmStart:
-                warnings.warn(
-                    "Parameter mipStart and mip_start passed, using warmStart"
-                )
-            else:
-                warmStart = mip_start
         LpSolver_CMD.__init__(
             self,
             gapRel=gapRel,
@@ -377,8 +349,6 @@ def __init__(
             mip=True,
             msg=True,
             timeLimit=None,
-            fracGap=None,
-            maxSeconds=None,
             gapRel=None,
             gapAbs=None,
             presolve=None,
@@ -390,7 +360,6 @@ def __init__(
             path=None,
             threads=None,
             logPath=None,
-            mip_start=False,
             timeMode="elapsed",
         ):
             if path is not None:
@@ -402,8 +371,6 @@ def __init__(
                 mip=mip,
                 msg=msg,
                 timeLimit=timeLimit,
-                fracGap=fracGap,
-                maxSeconds=maxSeconds,
                 gapRel=gapRel,
                 gapAbs=gapAbs,
                 presolve=presolve,
@@ -414,7 +381,6 @@ def __init__(
                 keepFiles=keepFiles,
                 threads=threads,
                 logPath=logPath,
-                mip_start=mip_start,
                 timeMode=timeMode,
             )
 
@@ -478,14 +444,14 @@ def __init__(
             rounding=1,
             integerPresolve=1,
             strong=5,
-            epgap=None,
             *args,
             **kwargs,
         ):
             LpSolver.__init__(self, *args, **kwargs)
             self.fracGap = None
-            if epgap is not None:
-                self.fracGap = float(epgap)
+            gapRel = self.optionsDict.get("gapRel")
+            if gapRel is not None:
+                self.fracGap = float(gapRel)
             if self.timeLimit is not None:
                 self.timeLimit = float(self.timeLimit)
             # Todo: these options are not yet implemented

diff --git a/pulp/apis/copt_api.py b/pulp/apis/copt_api.py
@@ -51,15 +51,6 @@ def __init__(
         """
         Initialize command-line solver
         """
-        if mip_start:
-            warnings.warn("Parameter mip_start is being deprecated for warmStart")
-            if warmStart:
-                warnings.warn(
-                    "Parameter warmStart and mip_start passed, using warmStart"
-                )
-            else:
-                warmStart = mip_start
-
         LpSolver_CMD.__init__(self, path, keepFiles, mip, msg, [])
 
         self.mipstart = warmStart
@@ -333,14 +324,6 @@ def __init__(
             """
             Initialize COPT solver
             """
-            if mip_start:
-                warnings.warn("Parameter mip_start is being deprecated for warmStart")
-                if warmStart:
-                    warnings.warn(
-                        "Parameter warmStart and mip_start passed, using warmStart"
-                    )
-                else:
-                    warmStart = mip_start
 
             LpSolver.__init__(self, mip, msg)
 
@@ -888,7 +871,6 @@ def __init__(
             mip=True,
             msg=True,
             timeLimit=None,
-            epgap=None,
             gapRel=None,
             warmStart=False,
             logPath=None,
@@ -901,14 +883,7 @@ def __init__(
             :param float gapRel: relative gap tolerance for the solver to stop (in fraction)
             :param bool warmStart: if True, the solver will use the current value of variables as a start
             :param str logPath: path to the log file
-            :param float epgap: deprecated for gapRel
             """
-            if epgap is not None:
-                warnings.warn("Parameter epgap is being deprecated for gapRel")
-                if gapRel is not None:
-                    warnings.warn("Parameter gapRel and epgap passed, using gapRel")
-                else:
-                    gapRel = epgap
 
             LpSolver.__init__(
                 self,

diff --git a/pulp/apis/cplex_api.py b/pulp/apis/cplex_api.py
@@ -11,7 +11,6 @@ class CPLEX_CMD(LpSolver_CMD):
 
     def __init__(
         self,
-        timelimit=None,
         mip=True,
         msg=True,
         timeLimit=None,
@@ -25,7 +24,6 @@ def __init__(
         logPath=None,
         maxMemory=None,
         maxNodes=None,
-        mip_start=False,
     ):
         """
         :param bool mip: if False, assume LP even if integer variables
@@ -41,25 +39,7 @@ def __init__(
         :param str logPath: path to the log file
         :param float maxMemory: max memory to use during the solving. Stops the solving when reached.
         :param int maxNodes: max number of nodes during branching. Stops the solving when reached.
-        :param bool mip_start: deprecated for warmStart
-        :param float timelimit: deprecated for timeLimit
         """
-        if timelimit is not None:
-            warnings.warn("Parameter timelimit is being deprecated for timeLimit")
-            if timeLimit is not None:
-                warnings.warn(
-                    "Parameter timeLimit and timelimit passed, using timeLimit "
-                )
-            else:
-                timeLimit = timelimit
-        if mip_start:
-            warnings.warn("Parameter mip_start is being deprecated for warmStart")
-            if warmStart:
-                warnings.warn(
-                    "Parameter mipStart and mip_start passed, using warmStart"
-                )
-            else:
-                warmStart = mip_start
         LpSolver_CMD.__init__(
             self,
             gapRel=gapRel,
@@ -293,8 +273,6 @@ def __init__(
             gapRel=None,
             warmStart=False,
             logPath=None,
-            epgap=None,
-            logfilename=None,
             threads=None,
         ):
             """
@@ -304,24 +282,8 @@ def __init__(
             :param float gapRel: relative gap tolerance for the solver to stop (in fraction)
             :param bool warmStart: if True, the solver will use the current value of variables as a start
             :param str logPath: path to the log file
-            :param float epgap: deprecated for gapRel
-            :param str logfilename: deprecated for logPath
             :param int threads: number of threads to be used by CPLEX to solve a problem (default None uses all available)
             """
-            if epgap is not None:
-                warnings.warn("Parameter epgap is being deprecated for gapRel")
-                if gapRel is not None:
-                    warnings.warn("Parameter gapRel and epgap passed, using gapRel")
-                else:
-                    gapRel = epgap
-            if logfilename is not None:
-                warnings.warn("Parameter logfilename is being deprecated for logPath")
-                if logPath is not None:
-                    warnings.warn(
-                        "Parameter logPath and logfilename passed, using logPath"
-                    )
-                else:
-                    logPath = logfilename
 
             LpSolver.__init__(
                 self,

diff --git a/pulp/apis/glpk_api.py b/pulp/apis/glpk_api.py
@@ -207,15 +207,15 @@ def actualSolve(self, lp, callback=None):
     else:
 
         def __init__(
-            self, mip=True, msg=True, timeLimit=None, epgap=None, **solverParams
+            self, mip=True, msg=True, timeLimit=None, gapRel=None, **solverParams
         ):
             """
             Initializes the glpk solver.
 
             @param mip: if False the solver will solve a MIP as an LP
             @param msg: displays information from the solver to stdout
             @param timeLimit: not handled
-            @param epgap: not handled
+            @param gapRel: not handled
             @param solverParams: not handled
             """
             LpSolver.__init__(self, mip, msg)

diff --git a/pulp/apis/gurobi_api.py b/pulp/apis/gurobi_api.py
@@ -70,7 +70,6 @@ def __init__(
             mip=True,
             msg=True,
             timeLimit=None,
-            epgap=None,
             gapRel=None,
             warmStart=False,
             logPath=None,
@@ -86,7 +85,6 @@ def __init__(
             :param float gapRel: relative gap tolerance for the solver to stop (in fraction)
             :param bool warmStart: if True, the solver will use the current value of variables as a start
             :param str logPath: path to the log file
-            :param float epgap: deprecated for gapRel
             :param gp.Env env: Gurobi environment to use. Default None.
             :param dict envOptions: environment options.
             :param bool manageEnv: if False, assume the environment is handled by the user.
@@ -148,13 +146,6 @@ def __init__(
             self.model = None
             self.init_gurobi = False  # whether env and model have been initialised
 
-            if epgap is not None:
-                warnings.warn("Parameter epgap is being deprecated for gapRel")
-                if gapRel is not None:
-                    warnings.warn("Parameter gapRel and epgap passed, using gapRel")
-                else:
-                    gapRel = epgap
-
             LpSolver.__init__(
                 self,
                 mip=mip,
@@ -243,7 +234,7 @@ def available(self):
             try:
                 with gp.Env(params=self.env_options):
                     pass
-            except gurobipy.GurobiError as e:
+            except gp.GurobiError as e:
                 warnings.warn(f"GUROBI error: {e}.")
                 return False
             return True
@@ -416,16 +407,7 @@ def __init__(
         :param bool keepFiles: if True, files are saved in the current directory and not deleted after solving
         :param str path: path to the solver binary
         :param str logPath: path to the log file
-        :param bool mip_start: deprecated for warmStart
         """
-        if mip_start:
-            warnings.warn("Parameter mip_start is being deprecated for warmStart")
-            if warmStart:
-                warnings.warn(
-                    "Parameter warmStart and mip_start passed, using warmStart"
-                )
-            else:
-                warmStart = mip_start
         LpSolver_CMD.__init__(
             self,
             gapRel=gapRel,

diff --git a/pulp/apis/xpress_api.py b/pulp/apis/xpress_api.py
@@ -54,8 +54,6 @@ def __init__(
         options=None,
         keepFiles=False,
         path=None,
-        maxSeconds=None,
-        targetGap=None,
         heurFreq=None,
         heurStra=None,
         coverCuts=None,
@@ -69,8 +67,6 @@ def __init__(
         :param bool msg: if False, no log is shown
         :param float timeLimit: maximum time for solver (in seconds)
         :param float gapRel: relative gap tolerance for the solver to stop (in fraction)
-        :param maxSeconds: deprecated for timeLimit
-        :param targetGap: deprecated for gapRel
         :param heurFreq: the frequency at which heuristics are used in the tree search
         :param heurStra: heuristic strategy
         :param coverCuts: the number of rounds of lifted cover inequalities at the top node
@@ -80,20 +76,6 @@ def __init__(
                         https://www.fico.com/fico-xpress-optimization/docs/latest/solver/optimizer/HTML/chapter7.html
         :param bool warmStart: if True, then use current variable values as start
         """
-        if maxSeconds:
-            warnings.warn("Parameter maxSeconds is being deprecated for timeLimit")
-            if timeLimit is not None:
-                warnings.warn(
-                    "Parameter timeLimit and maxSeconds passed, using timeLimit"
-                )
-            else:
-                timeLimit = maxSeconds
-        if targetGap is not None:
-            warnings.warn("Parameter targetGap is being deprecated for gapRel")
-            if gapRel is not None:
-                warnings.warn("Parameter gapRel and epgap passed, using gapRel")
-            else:
-                gapRel = targetGap
         LpSolver_CMD.__init__(
             self,
             gapRel=gapRel,

diff --git a/pulp/constants.py b/pulp/constants.py
@@ -27,7 +27,7 @@
 This file contains the constant definitions for PuLP
 Note that hopefully these will be changed into something more pythonic
 """
-VERSION = "2.7.0"
+VERSION = "2.8.0"
 EPS = 1e-7
 
 # variable categories