Use cStringIO everywhere when available for issue81 thanks htgoebel

trytond/ir/translation.py

@@ -1,6 +1,9 @@
 "Translation"
 import base64
-from StringIO import StringIO
+try:
+    import cStringIO as StringIO
+except ImportError:
+    import StringIO
 import csv
 from trytond.osv import fields, OSV, Cacheable
 from trytond.wizard import Wizard, WizardOSV
@@ -397,7 +400,7 @@ class Translation(OSV, Cacheable):
             db_id2fs_id.setdefault(model_data.model, {})
             db_id2fs_id[model_data.model][model_data.db_id] = model_data.fs_id
 
-        buf = StringIO()
+        buf = StringIO.StringIO()
         writer = csv.writer(buf, 'TRYTON')
         writer.writerow(HEADER)
 

trytond/pysocket.py

@@ -1,6 +1,9 @@
 import socket
 import cPickle
-import cStringIO
+try:
+    import cStringIO as StringIO
+except ImportError:
+    import StringIO
 
 DNS_CACHE = {}
 
@@ -161,7 +164,7 @@ class PySocket:
             if chunk == '':
                 raise RuntimeError, "socket connection broken"
             msg = msg + chunk
-        msgio = cStringIO.StringIO(msg)
+        msgio = StringIO.StringIO(msg)
         unpickler = cPickle.Unpickler(msgio)
         unpickler.find_global = checkfunction
         res = unpickler.load()

trytond/report/report.py

@@ -7,7 +7,10 @@ from xml import dom
 from trytond.osv import ExceptORM, ExceptOSV, OSV
 import sys
 import base64
-import StringIO
+try:
+    import cStringIO as StringIO
+except ImportError:
+    import StringIO
 import zipfile
 import locale
 import time

trytond/tools/convert.py

@@ -1,6 +1,10 @@
 "Convert"
 import re
-import StringIO, xml.dom.minidom
+try:
+    import cStringIO as StringIO
+except ImportError:
+    import StringIO
+import xml.dom.minidom
 from trytond import pooler
 from trytond.osv.fields import Integer
 import csv

trytond/tools/misc.py

@@ -9,6 +9,10 @@ import socket
 import zipfile
 from trytond import pooler
 from threading import Semaphore
+try:
+    import cStringIO as StringIO
+except ImportError:
+    import StringIO
 
 if sys.version_info[:2] < (2, 4):
     from threadinglocal import local
@@ -89,7 +93,6 @@ def file_open(name, mode="r", subdir='modules'):
         else:
             zipname = tail
         if zipfile.is_zipfile(head+'.zip'):
-            import StringIO
             zfile = zipfile.ZipFile(head+'.zip')
             try:
                 return StringIO.StringIO(zfile.read(os.path.join(