[Python-checkins] r77107 - in python/branches/release31-maint: Lib/lib2to3/fixer_util.py Lib/lib2to3/fixes/fix_callable.py Lib/lib2to3/main.py Lib/lib2to3/tests/test_all_fixers.py Lib/lib2to3/tests/test_fixers.py Lib/lib2to3/tests/test_main.py Lib/test/test_lib2to3.py

benjamin.peterson python-checkins at python.org
Tue Dec 29 01:44:14 CET 2009


Author: benjamin.peterson
Date: Tue Dec 29 01:44:14 2009
New Revision: 77107

Log:
Merged revisions 77103,77105-77106 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r77103 | benjamin.peterson | 2009-12-28 18:06:20 -0600 (Mon, 28 Dec 2009) | 57 lines
  
  Merged revisions 77102 via svnmerge from 
  svn+ssh://pythondev@svn.python.org/python/trunk
  
  ................
    r77102 | benjamin.peterson | 2009-12-28 17:50:41 -0600 (Mon, 28 Dec 2009) | 50 lines
    
    Merged revisions 76871-76872,77093-77095,77097-77101 via svnmerge from 
    svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3
    
    ........
      r76871 | benjamin.peterson | 2009-12-17 20:49:21 -0600 (Thu, 17 Dec 2009) | 1 line
      
      handle unencodable diffs gracefully #5093
    ........
      r76872 | benjamin.peterson | 2009-12-17 20:51:37 -0600 (Thu, 17 Dec 2009) | 1 line
      
      fix emacs header
    ........
      r77093 | benjamin.peterson | 2009-12-28 14:43:32 -0600 (Mon, 28 Dec 2009) | 7 lines
      
      replace callable(x) with isinstance(x, collections.Callable) #7006
      
      This is a more accurate translation than hasattr(x, '__call__') which failed in
      the case that somebody had put __call__ in the instance dictionary.
      
      Patch mostly by Joe Amenta.
    ........
      r77094 | benjamin.peterson | 2009-12-28 14:45:13 -0600 (Mon, 28 Dec 2009) | 2 lines
      
      deuglify imports
    ........
      r77095 | benjamin.peterson | 2009-12-28 14:49:23 -0600 (Mon, 28 Dec 2009) | 1 line
      
      remove unused flag
    ........
      r77097 | benjamin.peterson | 2009-12-28 16:12:13 -0600 (Mon, 28 Dec 2009) | 2 lines
      
      clean up imports and whitespace
    ........
      r77098 | benjamin.peterson | 2009-12-28 16:43:35 -0600 (Mon, 28 Dec 2009) | 1 line
      
      *** empty log message ***
    ........
      r77099 | benjamin.peterson | 2009-12-28 16:45:10 -0600 (Mon, 28 Dec 2009) | 1 line
      
      revert unintended change
    ........
      r77100 | benjamin.peterson | 2009-12-28 16:53:21 -0600 (Mon, 28 Dec 2009) | 1 line
      
      revert unintended changes
    ........
      r77101 | benjamin.peterson | 2009-12-28 17:46:02 -0600 (Mon, 28 Dec 2009) | 1 line
      
      normalize whitespace
    ........
  ................
................
  r77105 | benjamin.peterson | 2009-12-28 18:37:04 -0600 (Mon, 28 Dec 2009) | 1 line
  
  fix test on py3
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  r77106 | benjamin.peterson | 2009-12-28 18:38:47 -0600 (Mon, 28 Dec 2009) | 9 lines
  
  Merged revisions 77104 via svnmerge from 
  svn+ssh://pythondev@svn.python.org/python/trunk
  
  ........
    r77104 | benjamin.peterson | 2009-12-28 18:09:33 -0600 (Mon, 28 Dec 2009) | 1 line
    
    enable test_main.py
  ........
................


Added:
   python/branches/release31-maint/Lib/lib2to3/tests/test_main.py
      - copied unchanged from r77106, /python/branches/py3k/Lib/lib2to3/tests/test_main.py
Modified:
   python/branches/release31-maint/   (props changed)
   python/branches/release31-maint/Lib/lib2to3/fixer_util.py
   python/branches/release31-maint/Lib/lib2to3/fixes/fix_callable.py
   python/branches/release31-maint/Lib/lib2to3/main.py
   python/branches/release31-maint/Lib/lib2to3/tests/test_all_fixers.py
   python/branches/release31-maint/Lib/lib2to3/tests/test_fixers.py
   python/branches/release31-maint/Lib/test/test_lib2to3.py

Modified: python/branches/release31-maint/Lib/lib2to3/fixer_util.py
==============================================================================
--- python/branches/release31-maint/Lib/lib2to3/fixer_util.py	(original)
+++ python/branches/release31-maint/Lib/lib2to3/fixer_util.py	Tue Dec 29 01:44:14 2009
@@ -291,8 +291,6 @@
     if does_tree_import(package, name, root):
         return
 
-    add_newline_before = False
-
     # figure out where to insert the new import.  First try to find
     # the first import and then skip to the last one.
     insert_pos = offset = 0
@@ -312,7 +310,6 @@
             if node.type == syms.simple_stmt and node.children and \
                node.children[0].type == token.STRING:
                 insert_pos = idx + 1
-                add_newline_before
                 break
 
     if package is None:
@@ -324,8 +321,6 @@
         import_ = FromImport(package, [Leaf(token.NAME, name, prefix=' ')])
 
     children = [import_, Newline()]
-    if add_newline_before:
-        children.insert(0, Newline())
     root.insert_child(insert_pos, Node(syms.simple_stmt, children))
 
 

Modified: python/branches/release31-maint/Lib/lib2to3/fixes/fix_callable.py
==============================================================================
--- python/branches/release31-maint/Lib/lib2to3/fixes/fix_callable.py	(original)
+++ python/branches/release31-maint/Lib/lib2to3/fixes/fix_callable.py	Tue Dec 29 01:44:14 2009
@@ -3,12 +3,12 @@
 
 """Fixer for callable().
 
-This converts callable(obj) into hasattr(obj, '__call__')."""
+This converts callable(obj) into isinstance(obj, collections.Callable), adding a
+collections import if needed."""
 
 # Local imports
-from .. import pytree
-from .. import fixer_base
-from ..fixer_util import Call, Name, String
+from lib2to3 import fixer_base
+from lib2to3.fixer_util import Call, Name, String, Attr, touch_import
 
 class FixCallable(fixer_base.BaseFix):
 
@@ -25,7 +25,10 @@
     """
 
     def transform(self, node, results):
-        func = results["func"]
+        func = results['func']
 
-        args = [func.clone(), String(', '), String("'__call__'")]
-        return Call(Name("hasattr"), args, prefix=node.prefix)
+        touch_import(None, 'collections', node=node)
+
+        args = [func.clone(), String(', ')]
+        args.extend(Attr(Name('collections'), Name('Callable')))
+        return Call(Name('isinstance'), args, prefix=node.prefix)

Modified: python/branches/release31-maint/Lib/lib2to3/main.py
==============================================================================
--- python/branches/release31-maint/Lib/lib2to3/main.py	(original)
+++ python/branches/release31-maint/Lib/lib2to3/main.py	Tue Dec 29 01:44:14 2009
@@ -60,8 +60,14 @@
         else:
             self.log_message("Refactored %s", filename)
             if self.show_diffs:
-                for line in diff_texts(old, new, filename):
-                    print(line)
+                diff_lines = diff_texts(old, new, filename)
+                try:
+                    for line in diff_lines:
+                        print(line)
+                except UnicodeEncodeError:
+                    warn("couldn't encode %s's diff for your terminal" %
+                         (filename,))
+                    return
 
 def warn(msg):
     print("WARNING: %s" % (msg,), file=sys.stderr)

Modified: python/branches/release31-maint/Lib/lib2to3/tests/test_all_fixers.py
==============================================================================
--- python/branches/release31-maint/Lib/lib2to3/tests/test_all_fixers.py	(original)
+++ python/branches/release31-maint/Lib/lib2to3/tests/test_all_fixers.py	Tue Dec 29 01:44:14 2009
@@ -9,12 +9,12 @@
 import unittest
 
 # Local imports
-from .. import pytree
-from .. import refactor
+from lib2to3 import refactor
 from . import support
 
 
 class Test_all(support.TestCase):
+
     def setUp(self):
         self.refactor = support.get_refactorer()
 

Modified: python/branches/release31-maint/Lib/lib2to3/tests/test_fixers.py
==============================================================================
--- python/branches/release31-maint/Lib/lib2to3/tests/test_fixers.py	(original)
+++ python/branches/release31-maint/Lib/lib2to3/tests/test_fixers.py	Tue Dec 29 01:44:14 2009
@@ -2725,16 +2725,79 @@
 
     def test_prefix_preservation(self):
         b = """callable(    x)"""
-        a = """hasattr(    x, '__call__')"""
+        a = """import collections\nisinstance(    x, collections.Callable)"""
         self.check(b, a)
 
         b = """if     callable(x): pass"""
-        a = """if     hasattr(x, '__call__'): pass"""
+        a = """import collections
+if     isinstance(x, collections.Callable): pass"""
         self.check(b, a)
 
     def test_callable_call(self):
         b = """callable(x)"""
-        a = """hasattr(x, '__call__')"""
+        a = """import collections\nisinstance(x, collections.Callable)"""
+        self.check(b, a)
+
+    def test_global_import(self):
+        b = """
+def spam(foo):
+    callable(foo)"""[1:]
+        a = """
+import collections
+def spam(foo):
+    isinstance(foo, collections.Callable)"""[1:]
+        self.check(b, a)
+
+        b = """
+import collections
+def spam(foo):
+    callable(foo)"""[1:]
+        # same output if it was already imported
+        self.check(b, a)
+
+        b = """
+from collections import *
+def spam(foo):
+    callable(foo)"""[1:]
+        a = """
+from collections import *
+import collections
+def spam(foo):
+    isinstance(foo, collections.Callable)"""[1:]
+        self.check(b, a)
+
+        b = """
+do_stuff()
+do_some_other_stuff()
+assert callable(do_stuff)"""[1:]
+        a = """
+import collections
+do_stuff()
+do_some_other_stuff()
+assert isinstance(do_stuff, collections.Callable)"""[1:]
+        self.check(b, a)
+
+        b = """
+if isinstance(do_stuff, Callable):
+    assert callable(do_stuff)
+    do_stuff(do_stuff)
+    if not callable(do_stuff):
+        exit(1)
+    else:
+        assert callable(do_stuff)
+else:
+    assert not callable(do_stuff)"""[1:]
+        a = """
+import collections
+if isinstance(do_stuff, Callable):
+    assert isinstance(do_stuff, collections.Callable)
+    do_stuff(do_stuff)
+    if not isinstance(do_stuff, collections.Callable):
+        exit(1)
+    else:
+        assert isinstance(do_stuff, collections.Callable)
+else:
+    assert not isinstance(do_stuff, collections.Callable)"""[1:]
         self.check(b, a)
 
     def test_callable_should_not_change(self):

Modified: python/branches/release31-maint/Lib/test/test_lib2to3.py
==============================================================================
--- python/branches/release31-maint/Lib/test/test_lib2to3.py	(original)
+++ python/branches/release31-maint/Lib/test/test_lib2to3.py	Tue Dec 29 01:44:14 2009
@@ -1,13 +1,15 @@
 # Skipping test_parser and test_all_fixers
 # because of running
-from lib2to3.tests import test_fixers, test_pytree, test_util, test_refactor
+from lib2to3.tests import (test_fixers, test_pytree, test_util, test_refactor,
+                           test_main as test_main_)
 import unittest
 from test.support import run_unittest
 
 def suite():
     tests = unittest.TestSuite()
     loader = unittest.TestLoader()
-    for m in (test_fixers,test_pytree,test_util, test_refactor):
+    for m in (test_fixers, test_pytree,test_util, test_refactor,
+              test_main_):
         tests.addTests(loader.loadTestsFromModule(m))
     return tests
 


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