From d8bb3bbf125778c855e3b43cc9683c3a2f93f8e6 Mon Sep 17 00:00:00 2001
From: Tobias Megies <megies@geophysik.uni-muenchen.de>
Date: Tue, 17 Sep 2013 16:40:27 +0200
Subject: [PATCH] implement ResponseListElement.. but, uncertainties for
 FloatType of StationXML are not yet respected

---
 obspy/station/response.py | 33 +++++++++++++++++++++++++--------
 1 file changed, 25 insertions(+), 8 deletions(-)

diff --git a/obspy/station/response.py b/obspy/station/response.py
index 2b22b201118..7ebe556e6e6 100644
--- a/obspy/station/response.py
+++ b/obspy/station/response.py
@@ -416,18 +416,35 @@ def __init__(self, stage_sequence_number, stage_gain_value,
             decimation_correction=decimation_correction)
 
 
-class ResponseListElement():
+class ResponseListElement(object):
     """
     Describes the amplitude and phase response value for a discrete frequency
     value.
-
-    :type frequency: float
-    :param frequency: The frequency for which the response is valid.
-    :type amplitude: float
-    :param amplitude: The value for the amplitude response at this frequency.
-    :type phase: float
-    :param phase: The value for the phase response at this frequency.
     """
+    def __init__(self, frequency, amplitude, phase):
+        """
+        :type frequency: float
+        :param frequency: The frequency for which the response is valid.
+        :type amplitude: float
+        :param amplitude: The value for the amplitude response at this
+            frequency.
+        :type phase: float
+        :param phase: The value for the phase response at this frequency.
+        """
+        self.frequency = frequency
+        self.amplitude = amplitude
+        self.phase = phase
+
+    @property
+    def phase(self):
+        return self.__phase
+
+    @phase.setter
+    def phase(self, value):
+        value = float(value)
+        if not -360 <= value <= 360:
+            raise ValueError("Phase angle out of allowed range.")
+        self.__phase = value
 
 
 class FIRResponseStage(ResponseStage):