From 6262a3a7d1084ebb0dda7f7e49bea25343d25860 Mon Sep 17 00:00:00 2001
From: Jeremy Fee <jmfee@usgs.gov>
Date: Mon, 1 May 2017 10:23:17 -0600
Subject: [PATCH] Use BytesIO instead of StringIO

---
 geomagio/Util.py                    | 4 ++--
 geomagio/edge/EdgeFactory.py        | 4 ++--
 geomagio/iaga2002/IAGA2002Writer.py | 6 +++---
 geomagio/pcdcp/PCDCPWriter.py       | 6 +++---
 geomagio/temperature/TEMPWriter.py  | 6 +++---
 geomagio/vbf/VBFWriter.py           | 6 +++---
 6 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/geomagio/Util.py b/geomagio/Util.py
index e53d25c25..05eab9d9f 100644
--- a/geomagio/Util.py
+++ b/geomagio/Util.py
@@ -2,7 +2,7 @@ import pycurl
 import numpy
 import os
 from obspy.core import Stats, Trace
-from io import StringIO
+from io import BytesIO
 
 
 class ObjectView(object):
@@ -161,7 +161,7 @@ def read_url(url, connect_timeout=15, max_redirects=5, timeout=300):
     except Exception:
         pass
     content = None
-    out = StringIO()
+    out = BytesIO()
     curl = pycurl.Curl()
     try:
         curl.setopt(pycurl.FOLLOWLOCATION, 1)
diff --git a/geomagio/edge/EdgeFactory.py b/geomagio/edge/EdgeFactory.py
index 62875bf72..675a27b8d 100644
--- a/geomagio/edge/EdgeFactory.py
+++ b/geomagio/edge/EdgeFactory.py
@@ -11,7 +11,7 @@ Edge is the USGS earthquake hazard centers replacement for earthworm.
 from __future__ import absolute_import
 
 import sys
-from io import StringIO
+from io import BytesIO
 import numpy
 import numpy.ma
 import obspy.core
@@ -141,7 +141,7 @@ class EdgeFactory(TimeseriesFactory):
         # need this until https://github.com/obspy/obspy/pull/1179
         # replace stdout
         original_stdout = sys.stdout
-        temp_stdout = StringIO()
+        temp_stdout = BytesIO()
         try:
             sys.stdout = temp_stdout
             # get the timeseries
diff --git a/geomagio/iaga2002/IAGA2002Writer.py b/geomagio/iaga2002/IAGA2002Writer.py
index a0b84a151..e73611baa 100644
--- a/geomagio/iaga2002/IAGA2002Writer.py
+++ b/geomagio/iaga2002/IAGA2002Writer.py
@@ -1,7 +1,7 @@
 from __future__ import absolute_import
 from builtins import range
 
-from io import StringIO
+from io import BytesIO
 from datetime import datetime
 import numpy
 import textwrap
@@ -260,7 +260,7 @@ class IAGA2002Writer(object):
     def format(self, timeseries, channels):
         """Get an IAGA2002 formatted string.
 
-        Calls write() with a StringIO, and returns the output.
+        Calls write() with a BytesIO, and returns the output.
 
         Parameters
         ----------
@@ -271,7 +271,7 @@ class IAGA2002Writer(object):
         unicode
           IAGA2002 formatted string.
         """
-        out = StringIO()
+        out = BytesIO()
         writer = IAGA2002Writer()
         writer.write(out, timeseries, channels)
         return out.getvalue()
diff --git a/geomagio/pcdcp/PCDCPWriter.py b/geomagio/pcdcp/PCDCPWriter.py
index 42e91b316..390c2ea15 100644
--- a/geomagio/pcdcp/PCDCPWriter.py
+++ b/geomagio/pcdcp/PCDCPWriter.py
@@ -3,7 +3,7 @@ from builtins import range
 
 import numpy
 from . import PCDCPParser
-from io import StringIO
+from io import BytesIO
 from datetime import datetime
 from .. import ChannelConverter, TimeseriesUtility
 from ..TimeseriesFactoryException import TimeseriesFactoryException
@@ -165,7 +165,7 @@ class PCDCPWriter(object):
     def format(self, timeseries, channels):
         """Get an PCDCP formatted string.
 
-        Calls write() with a StringIO, and returns the output.
+        Calls write() with a BytesIO, and returns the output.
 
         Parameters
         ----------
@@ -179,7 +179,7 @@ class PCDCPWriter(object):
         unicode
           PCDCP formatted string.
         """
-        out = StringIO()
+        out = BytesIO()
         writer = PCDCPWriter()
         writer.write(out, timeseries, channels)
         return out.getvalue()
diff --git a/geomagio/temperature/TEMPWriter.py b/geomagio/temperature/TEMPWriter.py
index fd38d6fc0..d7dfebe3b 100644
--- a/geomagio/temperature/TEMPWriter.py
+++ b/geomagio/temperature/TEMPWriter.py
@@ -1,7 +1,7 @@
 from builtins import range
 
 import numpy
-from io import StringIO
+from io import BytesIO
 from datetime import datetime
 from .. import TimeseriesUtility
 from ..TimeseriesFactoryException import TimeseriesFactoryException
@@ -131,7 +131,7 @@ class TEMPWriter(object):
     def format(self, timeseries, channels):
         """Get an temp/volt formatted string.
 
-        Calls write() with a StringIO, and returns the output.
+        Calls write() with a BytesIO, and returns the output.
 
         Parameters
         ----------
@@ -145,7 +145,7 @@ class TEMPWriter(object):
         unicode
           temp/volt formatted string.
         """
-        out = StringIO()
+        out = BytesIO()
         writer = TEMPWriter()
         writer.write(out, timeseries, channels)
         return out.getvalue()
diff --git a/geomagio/vbf/VBFWriter.py b/geomagio/vbf/VBFWriter.py
index 626d474d3..47794c812 100644
--- a/geomagio/vbf/VBFWriter.py
+++ b/geomagio/vbf/VBFWriter.py
@@ -1,7 +1,7 @@
 from builtins import range
 
 import numpy
-from io import StringIO
+from io import BytesIO
 from datetime import datetime
 from .. import ChannelConverter, TimeseriesUtility
 from ..TimeseriesFactoryException import TimeseriesFactoryException
@@ -146,7 +146,7 @@ class VBFWriter(object):
     def format(self, timeseries, channels):
         """Get an VBF formatted string.
 
-        Calls write() with a StringIO, and returns the output.
+        Calls write() with a BytesIO, and returns the output.
 
         Parameters
         ----------
@@ -160,7 +160,7 @@ class VBFWriter(object):
         unicode
           VBF formatted string.
         """
-        out = StringIO()
+        out = BytesIO()
         writer = VBFWriter()
         writer.write(out, timeseries, channels)
         return out.getvalue()
-- 
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