131 lines
5.1 KiB
Plaintext
131 lines
5.1 KiB
Plaintext
Installation
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------------
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Note that to install PuLP you must first have a working python installation as
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described in `installing python`_.
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PuLP requires Python >= 2.6.
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The latest version of PuLP can be freely obtained from github_.
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Please note that this version of PuLP has not been tested with operating systems
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other than Microsoft Windows and Ubuntu Linux.
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Pip and pypi installation
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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By far the easiest way to install pulp is through the use of pip_ and
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CheeseShop_.
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* Install pip
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* In windows (please make sure pip is on your path)::
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c:\Python26\Scripts\> pip install pulp
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* In Linux::
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$ sudo pip install pulp
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$ sudo pulptest #needed to get the default solver to work
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* Then follow the instructions below to test your installation
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To access the examples and pulp source code use the instructions below
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to install from source
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Windows installation from source
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Install python (`installing python`_)
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* Download the `PuLP zipfile`_
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* Extract the zipfile to a suitable location (such as the desktop - the folder will be no longer required after installation)
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* Open a command prompt by clicking "Run" in the Start Menu, and type 'cmd' in the window and push enter.
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* Navigate to the extracted folder with the setup file in it. [Do this by typing 'cd foldername' at the prompt, where 'cd' stands for current directory and the 'foldername' is the name of the folder to open in the path already listed to the left of the prompt. To return back to a root drive, type 'cd C:\']
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* Type 'setup.py install' at the command prompt. This will install all the PuLP functions into Python's site-packages directory.
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The PuLP function library is now able to be imported from any python command line. Go to IDLE or PyDev and type
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>>> from pulp import *
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to load in the functions. (You need to re-import the functions each time after
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you close the GUI) PuLP is written in a programming language called Python, and
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to use PuLP you must write Python code to describe your optimization problem.
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Linux Installation
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~~~~~~~~~~~~~~~~~~
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* Extract the `PuLP zipfile`_ folder to a suitable location (such as your home directory - the folder will be no longer required after installation)
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* Open a command line navigate to the extracted zipfile with the setup file in it. [Do this by typing 'cd foldername' at the prompt]
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* Type the following at the command prompt. This will install all the PuLP functions into Python's callable modules.
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.. code-block:: sh
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$ sudo python setup.py install
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* install a solver for pulp to use either
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* use the included 64 or 32-bit binaries cbc-32 and cbc-64
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* install glpk_ debain based distributions may use the following
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.. code-block:: sh
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$ sudo apt-get install glpk
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* install gurobi_ (free academic licenses)
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* install cplex_ (also a license for academics)
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.. _glpk: http://www.gnu.org/software/glpk/
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.. _CBC: https://projects.coin-or.org/Cbc
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.. _cplex: http://cplex.com
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.. _gurobi: http://gurobi.com
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Testing your PuLP installation
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------------------------------
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To test that that you pulp installation is working correctly please type the
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following into a python interpreter and note that the output should be similar.
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The output below is what you would expect if you have not installed any other
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solvers and the CBC_ solver bundled with pulp works.
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>>> import pulp
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>>> pulp.pulpTestAll()
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Testing zero subtraction
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Testing continuous LP solution
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Testing maximize continuous LP solution
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Testing unbounded continuous LP solution
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Testing Long Names
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Testing repeated Names
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Testing zero constraint
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Testing zero objective
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Testing LpVariable (not LpAffineExpression) objective
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Testing Long lines in LP
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Testing LpAffineExpression divide
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Testing MIP solution
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Testing MIP relaxation
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Testing feasibility problem (no objective)
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Testing an infeasible problem
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Testing an integer infeasible problem
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Testing column based modelling
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Testing dual variables and slacks reporting
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Testing fractional constraints
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Testing elastic constraints (no change)
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Testing elastic constraints (freebound)
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Testing elastic constraints (penalty unchanged)
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Testing elastic constraints (penalty unbounded)
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* Solver pulp.solvers.PULP_CBC_CMD passed.
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Solver pulp.solvers.CPLEX_DLL unavailable
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Solver pulp.solvers.CPLEX_CMD unavailable
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Solver pulp.solvers.CPLEX_PY unavailable
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Solver pulp.solvers.COIN_CMD unavailable
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Solver pulp.solvers.COINMP_DLL unavailable
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Solver pulp.solvers.GLPK_CMD unavailable
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Solver pulp.solvers.XPRESS unavailable
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Solver pulp.solvers.GUROBI unavailable
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Solver pulp.solvers.GUROBI_CMD unavailable
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Solver pulp.solvers.PYGLPK unavailable
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Solver pulp.solvers.YAPOSIB unavailable
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.. _`installing python`: http://www.diveintopython.org/installing_python/index.html
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.. _github: https://github.com/stumitchell/pulp-or
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.. _pip: https://pypi.python.org/pypi/pip
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.. _CheeseShop: http://pypi.python.org
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.. _`PuLP zipfile`: https://github.com/stumitchell/pulp-or/archive/master.zip
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