def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
python类unicode_literals()的实例源码
def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
def _imports_unicode_literals(contents_text):
try:
ast_obj = ast_parse(contents_text)
except SyntaxError:
return False
for node in ast_obj.body:
# Docstring
if isinstance(node, ast.Expr) and isinstance(node.value, ast.Str):
continue
elif isinstance(node, ast.ImportFrom):
if (
node.module == '__future__' and
any(name.name == 'unicode_literals' for name in node.names)
):
return True
elif node.module == '__future__':
continue
else:
return False
else:
return False
def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
def setproctitle(title):
assert isinstance(title, compat_str)
# ctypes in Jython is not complete
# http://bugs.jython.org/issue2148
if sys.platform.startswith('java'):
return
try:
libc = ctypes.cdll.LoadLibrary('libc.so.6')
except OSError:
return
except TypeError:
# LoadLibrary in Windows Python 2.7.13 only expects
# a bytestring, but since unicode_literals turns
# every string into a unicode string, it fails.
return
title_bytes = title.encode('utf-8')
buf = ctypes.create_string_buffer(len(title_bytes))
buf.value = title_bytes
try:
libc.prctl(15, buf, 0, 0, 0)
except AttributeError:
return # Strange libc, just skip this
def testParseWithNulls(self):
# This relies on the from __future__ import unicode_literals, because
# explicitly specifying a unicode literal is a syntax error in Py 3.2
# May want to switch to u'...' if we ever drop Python 3.2 support.
pstring = '\x00\x00August 29, 1924'
self.assertEqual(parse(pstring),
datetime(1924, 8, 29))
def transform(self, node, results):
future_import(u"unicode_literals", node)
def strip_future_imports(self, code):
"""
Strips any of these import lines:
from __future__ import <anything>
from future <anything>
from future.<anything>
from builtins <anything>
or any line containing:
install_hooks()
or:
install_aliases()
Limitation: doesn't handle imports split across multiple lines like
this:
from __future__ import (absolute_import, division, print_function,
unicode_literals)
"""
output = []
# We need .splitlines(keepends=True), which doesn't exist on Py2,
# so we use this instead:
for line in code.split('\n'):
if not (line.startswith('from __future__ import ')
or line.startswith('from future ')
or line.startswith('from builtins ')
or 'install_hooks()' in line
or 'install_aliases()' in line
# but don't match "from future_builtins" :)
or line.startswith('from future.')):
output.append(line)
return '\n'.join(output)
def test_all_present(self):
import youtube_dl.compat
all_names = youtube_dl.compat.__all__
present_names = set(filter(
lambda c: '_' in c and not c.startswith('_'),
dir(youtube_dl.compat))) - set(['unicode_literals'])
self.assertEqual(all_names, sorted(present_names))
def test_all_files(self):
for dirpath, dirnames, filenames in os.walk(rootDir):
for ignore_dir in IGNORED_DIRS:
if ignore_dir in dirnames:
# If we remove the directory from dirnames os.walk won't
# recurse into it
dirnames.remove(ignore_dir)
for basename in filenames:
if not basename.endswith('.py'):
continue
if basename in IGNORED_FILES:
continue
fn = os.path.join(dirpath, basename)
with io.open(fn, encoding='utf-8') as inf:
code = inf.read()
if "'" not in code and '"' not in code:
continue
assertRegexpMatches(
self,
code,
r'(?:(?:#.*?|\s*)\n)*from __future__ import (?:[a-z_]+,\s*)*unicode_literals',
'unicode_literals import missing in %s' % fn)
m = re.search(r'(?<=\s)u[\'"](?!\)|,|$)', code)
if m is not None:
self.assertTrue(
m is None,
'u present in %s, around %s' % (
fn, code[m.start() - 10:m.end() + 10]))
def test_str_encode_decode_with_py2_str_arg(self):
# Try passing a standard Py2 string (as if unicode_literals weren't imported)
b = str(TEST_UNICODE_STR).encode(utils.bytes_to_native_str(b'utf-8'))
self.assertTrue(isinstance(b, bytes))
self.assertFalse(isinstance(b, str))
s = b.decode(utils.bytes_to_native_str(b'utf-8'))
self.assertTrue(isinstance(s, str))
self.assertEqual(s, TEST_UNICODE_STR)
def test_type(self):
"""
The following fails when passed a unicode string on Python
(including when unicode_literals is in effect) and fails when
passed a byte-string on Python 3. So type() always wants a native
string as the first argument.
TODO: maybe provide a replacement that works identically on Py2/3?
"""
mytype = type('blah', (dict,), {"old": 1, "new": 2})
d = mytype()
self.assertTrue(isinstance(d, mytype))
self.assertTrue(isinstance(d, dict))
def test_Py2_StringIO_module(self):
"""
This requires that the argument to io.StringIO be made a
unicode string explicitly if we're not using unicode_literals:
Ideally, there would be a fixer for this. For now:
TODO: add the Py3 equivalent for this to the docs. Also add back
a test for the unicode_literals case.
"""
before = """
import cStringIO
import StringIO
s1 = cStringIO.StringIO('my string')
s2 = StringIO.StringIO('my other string')
assert isinstance(s1, cStringIO.InputType)
"""
# There is no io.InputType in Python 3. futurize should change this to
# something like this. But note that the input to io.StringIO
# must be a unicode string on both Py2 and Py3.
after = """
import io
import io
s1 = io.StringIO(u'my string')
s2 = io.StringIO(u'my other string')
assert isinstance(s1, io.StringIO)
"""
self.convert_check(before, after)
def test_all_imports(self):
before = """
import math
import os
l = range(10)
assert isinstance(l, list)
print 'Hello'
for i in xrange(100):
pass
print('Hello')
"""
after = """
from __future__ import unicode_literals
from __future__ import print_function
from __future__ import division
from __future__ import absolute_import
from future import standard_library
standard_library.install_aliases()
from builtins import range
from builtins import *
import math
import os
l = list(range(10))
assert isinstance(l, list)
print('Hello')
for i in range(100):
pass
print('Hello')
"""
self.convert_check(before, after, all_imports=True)
def transform(self, node, results):
future_import(u"unicode_literals", node)
future_import(u"print_function", node)
future_import(u"division", node)
future_import(u"absolute_import", node)
def strip_future_imports(self, code):
"""
Strips any of these import lines:
from __future__ import <anything>
from future <anything>
from future.<anything>
from builtins <anything>
or any line containing:
install_hooks()
or:
install_aliases()
Limitation: doesn't handle imports split across multiple lines like
this:
from __future__ import (absolute_import, division, print_function,
unicode_literals)
"""
output = []
# We need .splitlines(keepends=True), which doesn't exist on Py2,
# so we use this instead:
for line in code.split('\n'):
if not (line.startswith('from __future__ import ')
or line.startswith('from future ')
or line.startswith('from builtins ')
or 'install_hooks()' in line
or 'install_aliases()' in line
# but don't match "from future_builtins" :)
or line.startswith('from future.')):
output.append(line)
return '\n'.join(output)
def transform(self, node, results):
future_import(u"unicode_literals", node)
future_import(u"print_function", node)
future_import(u"division", node)
future_import(u"absolute_import", node)
def transform(self, node, results):
future_import(u"unicode_literals", node)
def strip_future_imports(self, code):
"""
Strips any of these import lines:
from __future__ import <anything>
from future <anything>
from future.<anything>
from builtins <anything>
or any line containing:
install_hooks()
or:
install_aliases()
Limitation: doesn't handle imports split across multiple lines like
this:
from __future__ import (absolute_import, division, print_function,
unicode_literals)
"""
output = []
# We need .splitlines(keepends=True), which doesn't exist on Py2,
# so we use this instead:
for line in code.split('\n'):
if not (line.startswith('from __future__ import ')
or line.startswith('from future ')
or line.startswith('from builtins ')
or 'install_hooks()' in line
or 'install_aliases()' in line
# but don't match "from future_builtins" :)
or line.startswith('from future.')):
output.append(line)
return '\n'.join(output)
fix_add_all__future__imports.py 文件源码
项目：FightstickDisplay
作者: calexil
项目源码
文件源码
阅读 23
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def transform(self, node, results):
future_import(u"unicode_literals", node)
future_import(u"print_function", node)
future_import(u"division", node)
future_import(u"absolute_import", node)
def transform(self, node, results):
future_import(u"unicode_literals", node)
def strip_future_imports(self, code):
"""
Strips any of these import lines:
from __future__ import <anything>
from future <anything>
from future.<anything>
from builtins <anything>
or any line containing:
install_hooks()
or:
install_aliases()
Limitation: doesn't handle imports split across multiple lines like
this:
from __future__ import (absolute_import, division, print_function,
unicode_literals)
"""
output = []
# We need .splitlines(keepends=True), which doesn't exist on Py2,
# so we use this instead:
for line in code.split('\n'):
if not (line.startswith('from __future__ import ')
or line.startswith('from future ')
or line.startswith('from builtins ')
or 'install_hooks()' in line
or 'install_aliases()' in line
# but don't match "from future_builtins" :)
or line.startswith('from future.')):
output.append(line)
return '\n'.join(output)
def transform(self, node, results):
future_import(u"unicode_literals", node)
future_import(u"print_function", node)
future_import(u"division", node)
future_import(u"absolute_import", node)
def transform(self, node, results):
future_import(u"unicode_literals", node)
def strip_future_imports(self, code):
"""
Strips any of these import lines:
from __future__ import <anything>
from future <anything>
from future.<anything>
from builtins <anything>
or any line containing:
install_hooks()
or:
install_aliases()
Limitation: doesn't handle imports split across multiple lines like
this:
from __future__ import (absolute_import, division, print_function,
unicode_literals)
"""
output = []
# We need .splitlines(keepends=True), which doesn't exist on Py2,
# so we use this instead:
for line in code.split('\n'):
if not (line.startswith('from __future__ import ')
or line.startswith('from future ')
or line.startswith('from builtins ')
or 'install_hooks()' in line
or 'install_aliases()' in line
# but don't match "from future_builtins" :)
or line.startswith('from future.')):
output.append(line)
return '\n'.join(output)
def transform(self, node, results):
future_import(u"unicode_literals", node)
future_import(u"print_function", node)
future_import(u"division", node)
future_import(u"absolute_import", node)
def transform(self, node, results):
future_import(u"unicode_literals", node)
