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Merged revisions 76160-76161,76250,76252,76447,76506 via svnmerge from 

svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

........
  r76160 | benjamin.peterson | 2009-11-08 18:53:48 -0600 (Sun, 08 Nov 2009) | 1 line

  undeprecate the -p option; it's useful for converting python3 sources
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  r76161 | benjamin.peterson | 2009-11-08 19:05:37 -0600 (Sun, 08 Nov 2009) | 1 line

  simplify condition
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  r76250 | benjamin.peterson | 2009-11-13 16:56:48 -0600 (Fri, 13 Nov 2009) | 1 line

  fix handling of a utf-8 bom #7313
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  r76252 | benjamin.peterson | 2009-11-13 16:58:36 -0600 (Fri, 13 Nov 2009) | 1 line

  remove pdb turd
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  r76447 | benjamin.peterson | 2009-11-22 18:17:40 -0600 (Sun, 22 Nov 2009) | 1 line

  #7375 fix nested transformations in fix_urllib
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  r76506 | benjamin.peterson | 2009-11-24 18:34:31 -0600 (Tue, 24 Nov 2009) | 1 line

  use generator expressions in any()
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This commit is contained in:
Benjamin Peterson 2009-11-25 18:16:46 +00:00
parent 2ed8813f22
commit 42d26d94cc
10 changed files with 71 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Lib/lib2to3/fixes/fix_imports.py
View File

@ -108,7 +108,7 @@ class FixImports(fixer_base.BaseFix):
# Module usage could be in the trailer of an attribute lookup, so we
# might have nested matches when "bare_with_attr" is present.
if "bare_with_attr" not in results and \
any([match(obj) for obj in attr_chain(node, "parent")]):
any(match(obj) for obj in attr_chain(node, "parent")):
return False
return results
return False

2
Lib/lib2to3/fixes/fix_next.py
View File

@ -99,4 +99,4 @@ def find_assign(node):
def is_subtree(root, node):
if root == node:
return True
return any([is_subtree(c, node) for c in root.children])
return any(is_subtree(c, node) for c in root.children)

2
Lib/lib2to3/fixes/fix_renames.py
View File

@ -49,7 +49,7 @@ class FixRenames(fixer_base.BaseFix):
match = super(FixRenames, self).match
results = match(node)
if results:
if any([match(obj) for obj in attr_chain(node, "parent")]):
if any(match(obj) for obj in attr_chain(node, "parent")):
return False
return results
return False

10
Lib/lib2to3/fixes/fix_urllib.py
View File

@ -63,7 +63,8 @@ def build_pattern():
yield """import_name< 'import'
dotted_as_name< module_as=%r 'as' any > >
""" % old_module
yield """power< module_dot=%r trailer< '.' member=%s > any* >
# bare_with_attr has a special significance for FixImports.match().
yield """power< bare_with_attr=%r trailer< '.' member=%s > any* >
""" % (old_module, members)
@ -150,12 +151,11 @@ class FixUrllib(FixImports):
def transform_dot(self, node, results):
"""Transform for calls to module members in code."""
module_dot = results.get('module_dot')
module_dot = results.get('bare_with_attr')
member = results.get('member')
# this may be a list of length one, or just a node
new_name = None
if isinstance(member, list):
member = member[0]
new_name = None
for change in MAPPING[module_dot.value]:
if member.value in change[1]:
new_name = change[0]
@ -171,7 +171,7 @@ class FixUrllib(FixImports):
self.transform_import(node, results)
elif results.get('mod_member'):
self.transform_member(node, results)
elif results.get('module_dot'):
elif results.get('bare_with_attr'):
self.transform_dot(node, results)
# Renaming and star imports are not supported for these modules.
elif results.get('module_star'):

11
Lib/lib2to3/main.py
View File

@ -91,8 +91,7 @@ def main(fixer_pkg, args=None):
parser.add_option("-l", "--list-fixes", action="store_true",
help="List available transformations (fixes/fix_*.py)")
parser.add_option("-p", "--print-function", action="store_true",
help="DEPRECATED Modify the grammar so that print() is "
"a function")
help="Modify the grammar so that print() is a function")
parser.add_option("-v", "--verbose", action="store_true",
help="More verbose logging")
parser.add_option("--no-diffs", action="store_true",
@ -104,12 +103,10 @@ def main(fixer_pkg, args=None):
# Parse command line arguments
refactor_stdin = False
flags = {}
options, args = parser.parse_args(args)
if not options.write and options.no_diffs:
warn("not writing files and not printing diffs; that's not very useful")
if options.print_function:
warn("-p is deprecated; "
"detection of from __future__ import print_function is automatic")
if not options.write and options.nobackups:
parser.error("Can't use -n without -w")
if options.list_fixes:
@ -127,6 +124,8 @@ def main(fixer_pkg, args=None):
if options.write:
print >> sys.stderr, "Can't write to stdin."
return 2
if options.print_function:
flags["print_function"] = True
# Set up logging handler
level = logging.DEBUG if options.verbose else logging.INFO
@ -147,7 +146,7 @@ def main(fixer_pkg, args=None):
else:
requested = avail_fixes.union(explicit)
fixer_names = requested.difference(unwanted_fixes)
rt = StdoutRefactoringTool(sorted(fixer_names), None, sorted(explicit),
rt = StdoutRefactoringTool(sorted(fixer_names), flags, sorted(explicit),
options.nobackups, not options.no_diffs)
# Refactor all files and directories passed as arguments

10
Lib/lib2to3/pgen2/tokenize.py
View File

@ -281,9 +281,13 @@ def detect_encoding(readline):
# This behaviour mimics the Python interpreter
raise SyntaxError("unknown encoding: " + encoding)
if bom_found and codec.name != 'utf-8':
# This behaviour mimics the Python interpreter
raise SyntaxError('encoding problem: utf-8')
if bom_found:
if codec.name != 'utf-8':
# This behaviour mimics the Python interpreter
raise SyntaxError('encoding problem: utf-8')
else:
# Allow it to be properly encoded and decoded.
encoding = 'utf-8-sig'
return encoding
first = read_or_stop()

49
Lib/lib2to3/refactor.py
View File

@ -18,7 +18,6 @@ import logging
import operator
import collections
import StringIO
import warnings
from itertools import chain
# Local imports
@ -139,26 +138,23 @@ def _detect_future_print(source):
if have_docstring:
break
have_docstring = True
elif tp == token.NAME:
if value == u"from":
tp, value = advance()
if tp != token.NAME and value != u"__future__":
break
tp, value = advance()
if tp != token.NAME and value != u"import":
break
tp, value = advance()
if tp == token.OP and value == u"(":
tp, value = advance()
while tp == token.NAME:
if value == u"print_function":
return True
tp, value = advance()
if tp != token.OP and value != u",":
break
tp, value = advance()
else:
elif tp == token.NAME and value == u"from":
tp, value = advance()
if tp != token.NAME and value != u"__future__":
break
tp, value = advance()
if tp != token.NAME and value != u"import":
break
tp, value = advance()
if tp == token.OP and value == u"(":
tp, value = advance()
while tp == token.NAME:
if value == u"print_function":
return True
tp, value = advance()
if tp != token.OP and value != u",":
break
tp, value = advance()
else:
break
except StopIteration:
@ -172,7 +168,7 @@ class FixerError(Exception):
class RefactoringTool(object):
_default_options = {}
_default_options = {"print_function" : False}
CLASS_PREFIX = "Fix" # The prefix for fixer classes
FILE_PREFIX = "fix_" # The prefix for modules with a fixer within
@ -189,15 +185,16 @@ class RefactoringTool(object):
self.explicit = explicit or []
self.options = self._default_options.copy()
if options is not None:
if "print_function" in options:
warnings.warn("the 'print_function' option is deprecated",
DeprecationWarning)
self.options.update(options)
if self.options["print_function"]:
self.grammar = pygram.python_grammar_no_print_statement
else:
self.grammar = pygram.python_grammar
self.errors = []
self.logger = logging.getLogger("RefactoringTool")
self.fixer_log = []
self.wrote = False
self.driver = driver.Driver(pygram.python_grammar,
self.driver = driver.Driver(self.grammar,
convert=pytree.convert,
logger=self.logger)
self.pre_order, self.post_order = self.get_fixers()
@ -353,7 +350,7 @@ class RefactoringTool(object):
name, err.__class__.__name__, err)
return
finally:
self.driver.grammar = pygram.python_grammar
self.driver.grammar = self.grammar
self.log_debug("Refactoring %s", name)
self.refactor_tree(tree, name)
return tree

3
Lib/lib2to3/tests/data/bom.py Normal file
View File

@ -0,0 +1,3 @@
# coding: utf-8
print "BOM BOOM!"

15
Lib/lib2to3/tests/test_fixers.py
View File

@ -1753,6 +1753,8 @@ class Test_urllib(FixerTestCase):
for old, changes in self.modules.items():
for new, members in changes:
for member in members:
new_import = ", ".join([n for (n, mems)
in self.modules[old]])
b = """
import %s
foo(%s.%s)
@ -1760,9 +1762,16 @@ class Test_urllib(FixerTestCase):
a = """
import %s
foo(%s.%s)
""" % (", ".join([n for (n, mems)
in self.modules[old]]),
new, member)
""" % (new_import, new, member)
self.check(b, a)
b = """
import %s
%s.%s(%s.%s)
""" % (old, old, member, old, member)
a = """
import %s
%s.%s(%s.%s)
""" % (new_import, new, member, new, member)
self.check(b, a)

20
Lib/lib2to3/tests/test_refactor.py
View File

@ -4,6 +4,7 @@ Unit tests for refactor.py.
import sys
import os
import codecs
import operator
import StringIO
import tempfile
@ -45,12 +46,10 @@ class TestRefactoringTool(unittest.TestCase):
return refactor.RefactoringTool(fixers, options, explicit)
def test_print_function_option(self):
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always", DeprecationWarning)
refactor.RefactoringTool(_DEFAULT_FIXERS, {"print_function" : True})
self.assertEqual(len(w), 1)
msg, = w
self.assertTrue(msg.category is DeprecationWarning)
rt = self.rt({"print_function" : True})
self.assertTrue(rt.grammar is pygram.python_grammar_no_print_statement)
self.assertTrue(rt.driver.grammar is
pygram.python_grammar_no_print_statement)
def test_fixer_loading_helpers(self):
contents = ["explicit", "first", "last", "parrot", "preorder"]
@ -179,10 +178,12 @@ from __future__ import print_function"""
try:
rt.refactor_file(test_file, True)
self.assertNotEqual(old_contents, read_file())
new_contents = read_file()
self.assertNotEqual(old_contents, new_contents)
finally:
with open(test_file, "wb") as fp:
fp.write(old_contents)
return new_contents
def test_refactor_file(self):
test_file = os.path.join(FIXER_DIR, "parrot_example.py")
@ -223,6 +224,11 @@ from __future__ import print_function"""
fn = os.path.join(TEST_DATA_DIR, "different_encoding.py")
self.check_file_refactoring(fn)
def test_bom(self):
fn = os.path.join(TEST_DATA_DIR, "bom.py")
data = self.check_file_refactoring(fn)
self.assertTrue(data.startswith(codecs.BOM_UTF8))
def test_crlf_newlines(self):
old_sep = os.linesep
os.linesep = "\r\n"