def _glpk_representation(self):
self.update()
with TemporaryFilename(suffix=".glpk") as tmp_file_name:
glp_write_prob(self.problem, 0, tmp_file_name)
with open(tmp_file_name) as tmp_file:
glpk_form = tmp_file.read()
return glpk_form
def _glpk_representation(self):
self.update()
with TemporaryFilename(suffix=".glpk") as tmp_file_name:
glp_write_prob(self.problem, 0, tmp_file_name)
with open(tmp_file_name) as tmp_file:
glpk_form = tmp_file.read()
return glpk_form
def _glpk_representation(self):
with tempfile.NamedTemporaryFile(suffix=".glpk",
delete=True) as tmp_file:
tmp_file_name = tmp_file.name
glp_write_prob(self.problem, 0, tmp_file_name)
with open(tmp_file_name) as tmp_file:
glpk_form = tmp_file.read()
return glpk_form
def _glpk_representation(self):
self.update()
with TemporaryFilename(suffix=".glpk") as tmp_file_name:
code = glp_write_prob(self.problem, 0, tmp_file_name)
if code != 0:
raise Exception("GLPK could not successfully create the GLPK file.")
with open(tmp_file_name, "r") as tmp_file:
glpk_form = tmp_file.read()
return glpk_form
def _glpk_representation(self):
self.update()
with TemporaryFilename(suffix=".glpk") as tmp_file_name:
code = glp_write_prob(self.problem, 0, tmp_file_name)
if code != 0:
raise Exception("GLPK could not successfully create the GLPK file.")
with open(tmp_file_name, "r") as tmp_file:
glpk_form = tmp_file.read()
return glpk_form
def _glpk_representation(self):
tmp_file = tempfile.mktemp(suffix=".glpk")
glp_write_prob(self.problem, 0, tmp_file)
glpk_form = open(tmp_file).read()
return glpk_form
def write_lp_glpk(self, filename):
'''write the lp in GLPK format'''
if glpk.glp_write_prob(self.lp, 0, filename) != 0:
raise RuntimeError('Error saving GLPK-format LP to {}'.format(filename))
