move dependencies to extras

README.rst

@@ -65,21 +65,22 @@ http://pymodes.readthedocs.io
 Install
 -------
 
-To install the latest version development from the GitHub:
+The pyModeS can be installed with extra option ``[all]`` in order to install dependencies ``pyzmq`` and ``pyrtlsdr`` automatically.
 
-::
-
-  pip install git+https://github.com/junzis/pyModeS
-
-
-To install the latest stable version from pip:
-
-::
+Installation examples::
 
+  # stable version, basic
   pip install pyModeS
 
+  # stable version, including dependencies for streamer and rtlsdr
+  pip install pyModeS[all]
+
+  # development version, basic
+  pip install git+https://github.com/junzis/pyModeS
+
+  # development version, including dependencies for streamer and rtlsdr
+  pip install git+https://github.com/junzis/pyModeS#egg=pyModeS[all]
 
-The library requires several dependencies (``numpy``, ``pyzmq``, ``pyrtlsdr``), which will be installed automatically when you install pyModeS using ``pip``.
 
 
 View live traffic (modeslive)

setup.py

@@ -74,7 +74,7 @@ setup(
     # your project is installed. For an analysis of "install_requires" vs pip's
     # requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
-    install_requires=["numpy", "argparse", "pyzmq", "pyrtlsdr"],
+    install_requires=["numpy"],
     # List additional groups of dependencies here (e.g. development
     # dependencies). You can install these using the following syntax,
     # for example:
@@ -83,6 +83,7 @@ setup(
     #     'dev': ['check-manifest'],
     #     'test': ['coverage'],
     # },
+    extras_require={"all": ["argparse", "pyzmq", "pyrtlsdr"]},
     # If there are data files included in your packages that need to be
     # installed, specify them here.  If using Python 2.6 or less, then these
     # have to be included in MANIFEST.in as well.