Put requirements into setup.py

The main benefit here is that installing the package with
pip/setuptools/etc will install the required packages automatically if
they are missing

It also moves all the dependencies definition into one place, easier to
check and reconcile.

In order for this not to introduce more complexity, the requirements
files are removed and the .travis.yml is updated to specify which extras
should be installed with the package

Update the docs to use pip

Pip is the canonical python package installation/management tool

Add virtualenv to gitignore

This is for developers not using conda where virtualenv is the canonical
isolation tool

.gitignore

@@ -20,6 +20,10 @@ lib
 lib64
 __pycache__
 
+
+# virtual environment
+venv/
+
 # Installer logs
 pip-log.txt
 
@@ -101,3 +105,4 @@ pysal/examples/snow_maps/soho_graph.prj
 pysal/examples/snow_maps/soho_graph.qpj
 pysal/examples/snow_maps/soho_graph.shp
 pysal/examples/snow_maps/soho_graph.shx
+

.travis.yml

@@ -24,17 +24,17 @@ before_install:
   - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then 2to3 -nw pysal/ > /dev/null; fi
 
 install:
-  - conda install --yes numpy scipy nose pip
+  - conda install --yes pip
   - if [ "$PYSAL_PLUS" == true ]; then
-        echo 'plus testing'; conda install --yes --file requirements_plus.txt;
-        else conda install --yes --file requirements.txt; 
+        echo 'plus testing'; pip install .[plus];
+    else pip install .;
     fi;
-  - pip install -r travis.txt
+  - pip install .[dev]
 
-script: 
+script:
   - python setup.py sdist >/dev/null
   - echo "check_stable=False" >pysal/config.py
-  - nosetests --with-coverage --cover-package=pysal; 
+  - nosetests --with-coverage --cover-package=pysal;
   #- cd doc; make pickle; make doctest
 notifications:
     email:

doc/source/users/installation.rst

@@ -61,7 +61,7 @@ downloaded and installed manually or from the command line using
 
 Alternatively, grab the source distribution (.tar.gz) and decompress it to your selected destination. Open a command shell and navigate to the decompressed pysal folder. Type::
 
-  python setup.py install
+  pip install .
 
 
 Development version on GitHub 
@@ -74,10 +74,10 @@ Developers can checkout PySAL using **git**::
 Open a command shell and navigate to the cloned pysal
 directory. Type::
 
-  python setup.py develop
+  pip install -e .[dev]
 
-The 'develop' subcommand builds the modules in place 
-and modifies sys.path to include the code.
+The '-e' builds the modules in place 
+and symlinks from the python site packages directory to the pysal folder.
 The advantage of this method is that you get the latest code 
 but don't have to fuss with editing system environment variables.
 
@@ -107,7 +107,7 @@ After cloning pysal, install it in develop mode so Python knows where to find it
 Open a command shell and navigate to the cloned pysal
 directory. Type::
 
-  python setup.py develop
+  pip install -e .[dev]
 
 To test your setup, start a Python session and type::
 

setup.py

@@ -74,8 +74,35 @@ def setup_package():
         packages=find_packages(exclude=[".meta", "*.meta.*", "meta.*",
                                         "meta"]),
         package_data={'pysal': list(example_data_files)},
-        requires=['scipy'],
-        cmdclass= {'build_py': build_py}
+        install_requires=[
+            'scipy>=0.11',
+            'numpy>=1.3',
+        ],
+        extras_require={
+            'plus': [
+                'matplotlib>=1.5.1',
+                'seaborn>=0.7.0',
+                'geopandas>=0.2',
+                'scikit-learn>=0.17.1',
+                'bokeh>=0.11.1',
+                'geojson>=1.3.2',
+                'folium>=0.2.1',
+                'mplleaflet>=0.0.5',
+                'statsmodels>=0.6.1',
+                'numba',
+                'numexpr',
+            ],
+            'dev': [
+                'nose',
+                'nose-progressive',
+                'nose-exclude',
+                'coverage',
+                'sphinx',
+                'sphinxcontrib-napoleon',
+                'coveralls',
+            ],
+        },
+        cmdclass={'build_py': build_py}
     )