If you are using and old version of django (1.4 or lower) but are installing the latest dependancies for GEO DJANGO, specifically GDAL using brew install gdal. The below maybe helpful. This is a brew recipe to install geos on macos that plays well with older django versions and avoids "django.contrib.gis.geos.error.GEOSException: Could not parse…

geos.rb

require 'formula'

class Geos < Formula
  homepage 'http://trac.osgeo.org/geos'
  url 'http://download.osgeo.org/geos/geos-3.4.2.tar.bz2'
  sha1 'b8aceab04dd09f4113864f2d12015231bb318e9a'

  option :universal
  option :cxx11

  def patches
    # fixes something small
    DATA
  end

  def install
    ENV.universal_binary if build.universal?
    ENV.cxx11 if build.cxx11?

    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
    system "make install"
  end
end

__END__
diff --git a/capi/geos_ts_c.cpp b/capi/geos_ts_c.cpp
index 800a304..8cc119a 100644
--- a/capi/geos_ts_c.cpp
+++ b/capi/geos_ts_c.cpp
@@ -3311,7 +3311,7 @@ GEOSGetSRID_r(GEOSContextHandle_t extHandle, const Geometry *g)
 const char* GEOSversion()
 {
   static char version[256];
-  sprintf(version, "%s r%d", GEOS_CAPI_VERSION, GEOS_SVN_REVISION);
+  sprintf(version, "%s", GEOS_CAPI_VERSION);
   return version;
 }