Fix compatibility with python 2.2.0

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_4_X@15117 a592a061-630c-0410-9148-cb99ea01b6c8

lib/ChangeLog

@@ -1,4 +1,12 @@
-2009-09-21  José Matos  <jamatos@lyx.org>
+2006-09-22  José Matos  <jamatos@lyx.org>
+
+	* scripts/lyxpreview_tools.py
+	* scripts/fig_copy.py
+	* scripts/TeXFiles.py	
+	* configure.py: make code compatible with python 2.2.0 and document
+	the changes.
+	
+2006-09-21  José Matos  <jamatos@lyx.org>
 
 	* configure.py: make it compatible with python 2.2
 

lib/configure.py

@@ -579,6 +579,10 @@ def checkLatexConfig(check_config, bool_docbook, bool_linuxdoc):
         for line in open('chkconfig.vars').readlines():
             key, val = re.sub('-', '_', line).split('=')
             val = val.strip()
+            try:
+                values[key] = val.strip("'")
+            except TypeError:
+                # workaround for python 2.2.0 and 2.2.1
                 tmp = val.split("'")
                 while tmp and not tmp[0]: tmp = tmp[1:]
                 while tmp and not tmp[-1]: tmp = tmp[:-1]

lib/scripts/TeXFiles.py

@@ -33,6 +33,9 @@
 # relies on python and kpsewhich (no shell command is used).
 # 
 
+# this import is required for 2.2 compatibility
+from __future__ import generators
+
 import os, sys, re
 
 cls_stylefile = 'clsFiles.lst'
@@ -40,6 +43,54 @@ sty_stylefile = 'styFiles.lst'
 bst_stylefile = 'bstFiles.lst'
 bib_files = 'bibFiles.lst'
 
+# this code was taken from twisted
+# http://twistedmatrix.com/trac/browser/trunk/twisted/python/compat.py?rev=14178&format=txt
+# and allow us to use os.walk with python 2.2
+try:
+    os.walk
+except AttributeError:
+    if sys.version_info[:3] == (2, 2, 0):
+        __builtin__.True = (1 == 1)
+        __builtin__.False = (1 == 0)
+        def bool(value):
+            """Demote a value to 0 or 1, depending on its truth value
+
+            This is not to be confused with types.BooleanType, which is
+            way too hard to duplicate in 2.1 to be worth the trouble.
+            """
+            return not not value
+        __builtin__.bool = bool
+        del bool
+
+    def walk(top, topdown=True, onerror=None):
+        from os.path import join, isdir, islink
+
+        try:
+            names = os.listdir(top)
+        except OSError, e:
+            if onerror is not None:
+                onerror(err)
+            return
+
+        nondir, dir = [], []
+        nameLists = [nondir, dir]
+        for name in names:
+            nameLists[isdir(join(top, name))].append(name)
+
+        if topdown:
+            yield top, dir, nondir
+
+        for name in dir:
+            path = join(top, name)
+            if not islink(path):
+                for x in walk(path, topdown, onerror):
+                    yield x
+
+        if not topdown:
+            yield top, dir, nondir
+    os.walk = walk
+# end compatibility chunk
+
 def cmdOutput(cmd):
     '''utility function: run a command and get its output as a string
         cmd: command to run

lib/scripts/fig_copy.py

@@ -20,6 +20,21 @@
 
 import os, sys
 
+# compatibility with python 2.2
+if sys.version_info[:3] == (2, 2, 0):
+    __builtin__.True = (1 == 1)
+    __builtin__.False = (1 == 0)
+    def bool(value):
+        """Demote a value to 0 or 1, depending on its truth value
+
+        This is not to be confused with types.BooleanType, which is
+        way too hard to duplicate in 2.1 to be worth the trouble.
+        """
+        return not not value
+    __builtin__.bool = bool
+    del bool
+# end compatibility chunk
+
 if len(sys.argv) != 3:
     print >> sys.stderr, "Usage: fig_copy.py <from file> <to file>"
     sys.exit(1)

lib/scripts/lyxpreview_tools.py

@@ -16,6 +16,21 @@
 
 import os, re, string, sys, tempfile
 
+# compatibility with python 2.2
+if sys.version_info[:3] == (2, 2, 0):
+    __builtin__.True = (1 == 1)
+    __builtin__.False = (1 == 0)
+    def bool(value):
+        """Demote a value to 0 or 1, depending on its truth value
+
+        This is not to be confused with types.BooleanType, which is
+        way too hard to duplicate in 2.1 to be worth the trouble.
+        """
+        return not not value
+    __builtin__.bool = bool
+    del bool
+# end compatibility chunk
+
 use_win32_modules = 0
 if os.name == "nt":
     use_win32_modules = 1