introduce secop.core for easy imports

Change-Id: I559d537ba480e1c20f8e11fb259da6e17da53059
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/22892
Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>

secop/core.py

@@ -0,0 +1,37 @@
+#  -*- coding: utf-8 -*-
+# *****************************************************************************
+# Copyright (c) 2015-2016 by the authors, see LICENSE
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Module authors:
+#   Alexander Lenz <alexander.lenz@frm2.tum.de>
+#   Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
+#   Markus Zolliker <markus.zolliker@psi.ch>
+#
+# *****************************************************************************
+
+# allow to import the most important classes from 'secop'
+
+# pylint: disable=unused-import
+from secop.datatypes import FloatRange, IntRange, ScaledInteger, \
+    BoolType, EnumType, BLOBType, StringType, TupleOf, ArrayOf, StructOf
+from secop.lib.enum import Enum
+from secop.modules import Module, Readable, Writable, Drivable, Communicator, Attached
+from secop.params import Parameter, Command, Override
+from secop.metaclass import Done
+from secop.iohandler import IOHandler, IOHandlerBase
+from secop.stringio import StringIO, HasIodev
+from secop.proxy import SecNode, Proxy, proxy_class

secop_psi/ah2700.py

@@ -20,7 +20,7 @@
 # *****************************************************************************
 """Andeen Hagerling capacitance bridge"""
 
-from secop import Readable, Parameter, Override, FloatRange, HasIodev, StringIO, Done
+from secop.core import Readable, Parameter, Override, FloatRange, HasIodev, StringIO, Done
 
 
 class Ah2700IO(StringIO):

secop_psi/k2601b.py

@@ -22,7 +22,7 @@
 
 not tested yet"""
 
-from secop import Writable, Module, Parameter, Override, Attached,\
+from secop.core import Writable, Module, Parameter, Override, Attached,\
     BoolType, FloatRange, EnumType, HasIodev, StringIO