pyomo无法定位'gurobi'可执行文件

Question

我在让pyomo和gurobi在python中互动方面遇到了问题。我正在运行一个优化问题，我使用pyomo来建立优化问题本身，然后用gurobi来解决它。我一直在深入研究这些问题，但不幸的是，我没有成功地找到解决方案。我遇到了几个令我困惑的现象。这些是。

I am able to solve one of those simple optimization problems that gurobi provides from their websites. With this I believe that gurobi is installed.

I can import gurobi into python, but I cannot enter the gurobi shell (gurobi.sh) from the bash. I get an (command not found - error). On the other hand, I was able to use the grbgetkey command to add a license. This indicates that gurobi is either not installed or the path is not set correctly, but I am able to import it into python.

我正在运行Python2.7、Pyomo6.5和Gurobi9.1。

另外，下面是我的bashrc文件的样子。这有点复杂，但我强烈认为路径设置是正确的。

# User specific aliases and functions
export PATH=/usr/local/anaconda27/bin:$PATH
export LD_LIBRARY_PATH=/etc/glad-smail-liberr:$LD_LIBRARY_PATH
#export GUROBI_HOME="/opt/gurobi650/linux64"
export GUROBI_HOME="/usr/local/anaconda27"
export PATH="${PATH}:${GUROBI_HOME}/bin"
export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${GUROBI_HOME}/lib"
export GRB_LICENSE_FILE="${GUROBI_HOME}/lib/gurobi.lic"
下面，我插入了错误信息。
WARNING:pyomo.solvers:Could not locate the 'gurobi' executable, which is required for solver gurobi
failed
Traceback (most recent call last):
File "scripts/solve_network.py", line 179, in <module>
    solve_model(network)
  File "scripts/solve_network.py", line 106, in solve_model
    network.lopf(network.snapshots,solver_name=solver_name,solver_io=solver_io,solver_options=solver_options,extra_functionality=extra_functionality,keep_files=network.opf_keep_files,formulation=options['formulation'])
  File "/usr/local/anaconda27/lib/python2.7/site-packages/pypsa-0.15.0-py2.7.egg/pypsa/opf.py", line 1673, in network_lopf
    extra_postprocessing=extra_postprocessing)
  File "/usr/local/anaconda27/lib/python2.7/site-packages/pypsa-0.15.0-py2.7.egg/pypsa/opf.py", line 1580, in network_lopf_solve
    network.results = network.opt.solve(*args, suffixes=["dual"], keepfiles=keep_files, logfile=solver_logfile, options=solver_options)
  File "/usr/local/anaconda27/lib/python2.7/site-packages/Pyomo-5.6-py2.7-linux-x86_64.egg/pyomo/opt/base/solvers.py", line 512, in solve
    self.available(exception_flag=True)
  File "/usr/local/anaconda27/lib/python2.7/site-packages/Pyomo-5.6-py2.7-linux-x86_64.egg/pyomo/solvers/plugins/solvers/GUROBI.py", line 155, in available
    val = ILMLicensedSystemCallSolver.available(self, exception_flag)
  File "/usr/local/anaconda27/lib/python2.7/site-packages/Pyomo-5.6-py2.7-linux-x86_64.egg/pyomo/opt/solver/ilmcmd.py", line 36, in available
    if not pyomo.opt.solver.shellcmd.SystemCallSolver.available(self, exception_flag):
  File "/usr/local/anaconda27/lib/python2.7/site-packages/Pyomo-5.6-py2.7-linux-x86_64.egg/pyomo/opt/solver/shellcmd.py", line 126, in available
    raise ApplicationError(msg % self.name)
pyutilib.common._exceptions.ApplicationError: No executable found for solver 'gurobi'
这个错误信息明确指出，Pyomo无法找到gurobi的安装位置。但是，我能够在其他不使用pyomo的优化问题中使用gurobi。
我真的希望有人能让我前进。