Raises python requirement to 2.7.

 * Change the most important places version_check.py abd doc/installation.txt
   for python2.7. This has been discussed on roundup-devel twice.
 * Add note to anypy TODO and CHANGES.txt.

Author: bernhardreiter

CHANGES.txt

@@ -228,6 +228,8 @@ Features:
   by default (finding only non-retired items for backwards
   compatibility) and can be set to None (for finding retired and
   non-retired items) or True (for finding only retired items).
+- Requires Python 2.7 now, indicated in version_check.py
+  and doc/installation.txt. (Bernhard Reiter)
 
 Fixed:
 
@@ -645,7 +647,7 @@ Fixed:
 - Documentation: configuration messages_to_author value "nosy" now documented
   in chapter "customizing". (Bernhard Reiter)
 - issue2550877 Failures in test_mailgw.py because of duplicated headers
-  and more precise comparision. Writing headers with the email module will use 
+  and more precise comparision. Writing headers with the email module will use
   continuation_ws = ' ' now for python 2.5 and 2.6. (Bernhard Reiter)
 - issue2550870 migrate use of 'rfc822' module to the 'email' module
   (Bernhard Reiter/John Kristensen)

doc/installation.txt

@@ -31,7 +31,7 @@ Roundup scripts
 Prerequisites
 =============
 
-Roundup requires Python 2.5 or newer (but not Python 3) with a functioning
+Roundup requires Python 2.7 or newer (but not Python 3) with a functioning
 anydbm module. Download the latest version from http://www.python.org/.
 It is highly recommended that users install the latest patch version
 of python as these contain many fixes to serious bugs.
@@ -59,7 +59,7 @@ Timezone Definitions
   which brings the `Olson tz database`_ into Python.  If pytz_ is not
   installed, timezones may be specified as numeric hour offsets only.
   This is optional but strongly suggested.
-  
+
 An RDBMS
   Sqlite, MySQL and Postgresql are all supported by Roundup and will be
   used if available. One of these is recommended if you are anticipating a
@@ -296,7 +296,7 @@ Configuring your first tracker
 
    to run the server at port 1080 and bind to all ip addresses on your system.
    Then direct your web browser to ``http://your_host_name:1080/support``.
-   
+
 Choosing Your Template
 ----------------------
 
@@ -1089,9 +1089,8 @@ source directory and make sure there are no errors. If there are errors,
 please let us know!
 
 If the above fails, you may be using the wrong version of python. Try
-``python2 run_tests.py`` or ``python2.X run_tests.py`` where ``X`` is in
-the set 3,4,5,6 depending on the version(s) of python installed.
-If that works, you will need to substitute ``python2`` or ``python2.X``
+``python2 run_tests.py`` or ``python2.7 run_tests.py``.
+If that works, you will need to substitute ``python2`` or ``python2.7``
 for ``python`` in all further commands you use in relation to Roundup --
 from installation and scripts.
 

roundup/anypy/TODO.txt

@@ -1,4 +1,4 @@
 Python compatiblity TODO
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
-Remove support for Python versions < 2.5. As they are not supported anymore.
+Remove support for Python versions < 2.7. As they are not supported anymore.

roundup/version_check.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
-# Roundup requires Python 2.5+ as mentioned in doc\installation.txt
-VERSION_NEEDED = (2,5)
+# Roundup requires Python 2.7+ as mentioned in doc\installation.txt
+VERSION_NEEDED = (2,7)
 
 import sys
 if sys.version_info < VERSION_NEEDED: