xref #276

There appears to be more issues with binder.

• pulp installation. For example, see the error below from cell 19 in p-median.ipynb.
  • PulpSolverError Traceback

    
    

    ---------------------------------------------------------------------------
    PulpSolverError                           Traceback (most recent call last)
    Cell In [19], line 1
    ----> 1 pmedian_from_cm = pmedian_from_cm.solve(solver)
          2 pmedian_from_cm
    
    File /srv/conda/envs/notebook/lib/python3.10/site-packages/spopt/locate/p_median.py:347, in PMedian.solve(self, solver, results)
        331 def solve(self, solver: pulp.LpSolver, results: bool = True):
        332     """
        333     Solve the PMedian model
        334 
       (...)
        345     PMedian object
        346     """
    --> 347     self.problem.solve(solver)
        348     self.check_status()
        350     if results:
    
    File /srv/conda/envs/notebook/lib/python3.10/site-packages/pulp/pulp.py:1913, in LpProblem.solve(self, solver, **kwargs)
       1911 # time it
       1912 self.startClock()
    -> 1913 status = solver.actualSolve(self, **kwargs)
       1914 self.stopClock()
       1915 self.restoreObjective(wasNone, dummyVar)
    
    File /srv/conda/envs/notebook/lib/python3.10/site-packages/pulp/apis/coin_api.py:356, in PULP_CBC_CMD.actualSolve(self, lp, callback)
        354 def actualSolve(self, lp, callback=None):
        355     """Solve a well formulated lp problem"""
    --> 356     raise PulpSolverError(
        357         "PULP_CBC_CMD: Not Available (check permissions on %s)"
        358         % self.pulp_cbc_path
        359     )
    
    PulpSolverError: PULP_CBC_CMD: Not Available (check permissions on /srv/conda/envs/notebook/lib/python3.10/site-packages/pulp/apis/../solverdir/cbc/linux/64/cbc)
    

    

  • Seems that only ['GLPK_CMD', 'COIN_CMD'] solvers are installing from the env, so I'll update the solvers to either one of those in the notebooks.

• routingpy installation. Seem to be trouble getting routingpy installed via environment.yml even though it is listed in there.
  • ModuleNotFoundError Traceback

    
    

    ---------------------------------------------------------------------------
    ModuleNotFoundError                       Traceback (most recent call last)
    Cell In [2], line 6
          4 import numpy
          5 import pulp
    ----> 6 import routingpy
          7 from routingpy import OSRM
          8 import shapely
    
    ModuleNotFoundError: No module named 'routingpy'
    

    
  • Solution

    
    

    try:
        import routingpy
    except ModuleNotFoundError:
        print("`routingpy ` not found. Downloading now...")
        !pip install routingpy