debug for travis fail

.travis.yml

@@ -8,8 +8,10 @@ python:
   # does not have headers provided, please ask https://launchpad.net/~pypy/+archive/ppa
   # maintainers to fix their pypy-dev package.
   - "pypy"
+before_install: sudo apt-get install tree
 # command to install dependencies
 install:
   - pip install .
+before_script: tree
 # command to run tests
 script: pulptest

src/pulp/solvers.py

@@ -103,6 +103,7 @@ def initialize(filename, operating_system='linux', arch='64'):
         if not os.path.dirname(path):
             #if no pathname is supplied assume the file is in the same directory
             coinMP_path[i] = os.path.join(os.path.dirname(config_filename),path)
+    print pulp_cbc_path
     return cplex_dll_path, ilm_cplex_license, ilm_cplex_license_signature,\
         coinMP_path, gurobi_path, cbc_path, glpk_path, pulp_cbc_path