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Upgrade msgpack to 0.6.1 

This also allows us to drop our compatibility patch Python <2.7.6.
This commit is contained in:
Pradyun Gedam 2019-07-20 09:34:06 +05:30
parent 8e8d28dd8e
commit 0d45b3cc4c
No known key found for this signature in database
GPG Key ID: DA17C4B29CB32E4B
7 changed files with 218 additions and 365 deletions
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1
news/msgpack.vendor Normal file
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@ -0,0 +1 @@
Upgrade msgpack to 0.6.1

3
src/pip/_vendor/msgpack/__init__.py
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@ -22,8 +22,7 @@ if os.environ.get('MSGPACK_PUREPYTHON'):
from pip._vendor.msgpack.fallback import Packer, unpackb, Unpacker
else:
try:
from pip._vendor.msgpack._packer import Packer
from pip._vendor.msgpack._unpacker import unpackb, Unpacker
from pip._vendor.msgpack._cmsgpack import Packer, unpackb, Unpacker
except ImportError:
from pip._vendor.msgpack.fallback import Packer, unpackb, Unpacker

2
src/pip/_vendor/msgpack/_version.py
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@ -1 +1 @@
version = (0, 5, 6)
version = (0, 6, 1)

45
src/pip/_vendor/msgpack/exceptions.py
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@ -1,5 +1,10 @@
class UnpackException(Exception):
"""Deprecated. Use Exception instead to catch all exception during unpacking."""
"""Base class for some exceptions raised while unpacking.
NOTE: unpack may raise exception other than subclass of
UnpackException. If you want to catch all error, catch
Exception instead.
"""
class BufferFull(UnpackException):
@ -10,11 +15,25 @@ class OutOfData(UnpackException):
pass
class UnpackValueError(UnpackException, ValueError):
"""Deprecated. Use ValueError instead."""
class FormatError(ValueError, UnpackException):
"""Invalid msgpack format"""
class StackError(ValueError, UnpackException):
"""Too nested"""
# Deprecated. Use ValueError instead
UnpackValueError = ValueError
class ExtraData(UnpackValueError):
"""ExtraData is raised when there is trailing data.
This exception is raised while only one-shot (not streaming)
unpack.
"""
def __init__(self, unpacked, extra):
self.unpacked = unpacked
self.extra = extra
@ -23,19 +42,7 @@ class ExtraData(UnpackValueError):
return "unpack(b) received extra data."
class PackException(Exception):
"""Deprecated. Use Exception instead to catch all exception during packing."""
class PackValueError(PackException, ValueError):
"""PackValueError is raised when type of input data is supported but it's value is unsupported.
Deprecated. Use ValueError instead.
"""
class PackOverflowError(PackValueError, OverflowError):
"""PackOverflowError is raised when integer value is out of range of msgpack support [-2**31, 2**32).
Deprecated. Use ValueError instead.
"""
# Deprecated. Use Exception instead to catch all exception during packing.
PackException = Exception
PackValueError = ValueError
PackOverflowError = OverflowError

326
src/pip/_vendor/msgpack/fallback.py
View File

@ -4,20 +4,30 @@ import sys
import struct
import warnings
if sys.version_info[0] == 3:
PY3 = True
if sys.version_info[0] == 2:
PY2 = True
int_types = (int, long)
def dict_iteritems(d):
return d.iteritems()
else:
PY2 = False
int_types = int
Unicode = str
unicode = str
xrange = range
def dict_iteritems(d):
return d.items()
else:
PY3 = False
int_types = (int, long)
Unicode = unicode
def dict_iteritems(d):
return d.iteritems()
if sys.version_info < (3, 5):
# Ugly hack...
RecursionError = RuntimeError
def _is_recursionerror(e):
return len(e.args) == 1 and isinstance(e.args[0], str) and \
e.args[0].startswith('maximum recursion depth exceeded')
else:
def _is_recursionerror(e):
return True
if hasattr(sys, 'pypy_version_info'):
# cStringIO is slow on PyPy, StringIO is faster. However: PyPy's own
@ -52,10 +62,10 @@ else:
from pip._vendor.msgpack.exceptions import (
BufferFull,
OutOfData,
UnpackValueError,
PackValueError,
PackOverflowError,
ExtraData)
ExtraData,
FormatError,
StackError,
)
from pip._vendor.msgpack import ExtType
@ -87,12 +97,12 @@ def _get_data_from_buffer(obj):
view = memoryview(obj)
except TypeError:
# try to use legacy buffer protocol if 2.7, otherwise re-raise
if not PY3:
if PY2:
view = memoryview(buffer(obj))
warnings.warn("using old buffer interface to unpack %s; "
"this leads to unpacking errors if slicing is used and "
"will be removed in a future version" % type(obj),
RuntimeWarning)
RuntimeWarning, stacklevel=3)
else:
raise
if view.itemsize != 1:
@ -103,7 +113,7 @@ def _get_data_from_buffer(obj):
def unpack(stream, **kwargs):
warnings.warn(
"Direct calling implementation's unpack() is deprecated, Use msgpack.unpack() or unpackb() instead.",
PendingDeprecationWarning)
DeprecationWarning, stacklevel=2)
data = stream.read()
return unpackb(data, **kwargs)
@ -112,20 +122,37 @@ def unpackb(packed, **kwargs):
"""
Unpack an object from `packed`.
Raises `ExtraData` when `packed` contains extra bytes.
Raises ``ExtraData`` when *packed* contains extra bytes.
Raises ``ValueError`` when *packed* is incomplete.
Raises ``FormatError`` when *packed* is not valid msgpack.
Raises ``StackError`` when *packed* contains too nested.
Other exceptions can be raised during unpacking.
See :class:`Unpacker` for options.
"""
unpacker = Unpacker(None, **kwargs)
unpacker = Unpacker(None, max_buffer_size=len(packed), **kwargs)
unpacker.feed(packed)
try:
ret = unpacker._unpack()
except OutOfData:
raise UnpackValueError("Data is not enough.")
raise ValueError("Unpack failed: incomplete input")
except RecursionError as e:
if _is_recursionerror(e):
raise StackError
raise
if unpacker._got_extradata():
raise ExtraData(ret, unpacker._get_extradata())
return ret
if sys.version_info < (2, 7, 6):
def _unpack_from(f, b, o=0):
"""Explicit typcast for legacy struct.unpack_from"""
return struct.unpack_from(f, bytes(b), o)
else:
_unpack_from = struct.unpack_from
class Unpacker(object):
"""Streaming unpacker.
@ -152,6 +179,11 @@ class Unpacker(object):
*encoding* option which is deprecated overrides this option.
:param bool strict_map_key:
If true, only str or bytes are accepted for map (dict) keys.
It's False by default for backward-compatibility.
But it will be True from msgpack 1.0.
:param callable object_hook:
When specified, it should be callable.
Unpacker calls it with a dict argument after unpacking msgpack map.
@ -176,27 +208,34 @@ class Unpacker(object):
You should set this parameter when unpacking data from untrusted source.
:param int max_str_len:
Limits max length of str. (default: 2**31-1)
Deprecated, use *max_buffer_size* instead.
Limits max length of str. (default: max_buffer_size or 1024*1024)
:param int max_bin_len:
Limits max length of bin. (default: 2**31-1)
Deprecated, use *max_buffer_size* instead.
Limits max length of bin. (default: max_buffer_size or 1024*1024)
:param int max_array_len:
Limits max length of array. (default: 2**31-1)
Limits max length of array.
(default: max_buffer_size or 128*1024)
:param int max_map_len:
Limits max length of map. (default: 2**31-1)
Limits max length of map.
(default: max_buffer_size//2 or 32*1024)
:param int max_ext_len:
Deprecated, use *max_buffer_size* instead.
Limits max size of ext type. (default: max_buffer_size or 1024*1024)
example of streaming deserialize from file-like object::
Example of streaming deserialize from file-like object::
unpacker = Unpacker(file_like, raw=False)
unpacker = Unpacker(file_like, raw=False, max_buffer_size=10*1024*1024)
for o in unpacker:
process(o)
example of streaming deserialize from socket::
Example of streaming deserialize from socket::
unpacker = Unpacker(raw=False)
unpacker = Unpacker(raw=False, max_buffer_size=10*1024*1024)
while True:
buf = sock.recv(1024**2)
if not buf:
@ -204,22 +243,27 @@ class Unpacker(object):
unpacker.feed(buf)
for o in unpacker:
process(o)
Raises ``ExtraData`` when *packed* contains extra bytes.
Raises ``OutOfData`` when *packed* is incomplete.
Raises ``FormatError`` when *packed* is not valid msgpack.
Raises ``StackError`` when *packed* contains too nested.
Other exceptions can be raised during unpacking.
"""
def __init__(self, file_like=None, read_size=0, use_list=True, raw=True,
def __init__(self, file_like=None, read_size=0, use_list=True, raw=True, strict_map_key=False,
object_hook=None, object_pairs_hook=None, list_hook=None,
encoding=None, unicode_errors=None, max_buffer_size=0,
ext_hook=ExtType,
max_str_len=2147483647, # 2**32-1
max_bin_len=2147483647,
max_array_len=2147483647,
max_map_len=2147483647,
max_ext_len=2147483647):
max_str_len=-1,
max_bin_len=-1,
max_array_len=-1,
max_map_len=-1,
max_ext_len=-1):
if encoding is not None:
warnings.warn(
"encoding is deprecated, Use raw=False instead.",
PendingDeprecationWarning)
DeprecationWarning, stacklevel=2)
if unicode_errors is None:
unicode_errors = 'strict'
@ -234,12 +278,6 @@ class Unpacker(object):
#: array of bytes fed.
self._buffer = bytearray()
# Some very old pythons don't support `struct.unpack_from()` with a
# `bytearray`. So we wrap it in a `buffer()` there.
if sys.version_info < (2, 7, 6):
self._buffer_view = buffer(self._buffer)
else:
self._buffer_view = self._buffer
#: Which position we currently reads
self._buff_i = 0
@ -252,11 +290,23 @@ class Unpacker(object):
# state, which _buf_checkpoint records.
self._buf_checkpoint = 0
if max_str_len == -1:
max_str_len = max_buffer_size or 1024*1024
if max_bin_len == -1:
max_bin_len = max_buffer_size or 1024*1024
if max_array_len == -1:
max_array_len = max_buffer_size or 128*1024
if max_map_len == -1:
max_map_len = max_buffer_size//2 or 32*1024
if max_ext_len == -1:
max_ext_len = max_buffer_size or 1024*1024
self._max_buffer_size = max_buffer_size or 2**31-1
if read_size > self._max_buffer_size:
raise ValueError("read_size must be smaller than max_buffer_size")
self._read_size = read_size or min(self._max_buffer_size, 16*1024)
self._raw = bool(raw)
self._strict_map_key = bool(strict_map_key)
self._encoding = encoding
self._unicode_errors = unicode_errors
self._use_list = use_list
@ -295,7 +345,8 @@ class Unpacker(object):
self._buff_i -= self._buf_checkpoint
self._buf_checkpoint = 0
self._buffer += view
# Use extend here: INPLACE_ADD += doesn't reliably typecast memoryview in jython
self._buffer.extend(view)
def _consume(self):
""" Gets rid of the used parts of the buffer. """
@ -365,18 +416,18 @@ class Unpacker(object):
n = b & 0b00011111
typ = TYPE_RAW
if n > self._max_str_len:
raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
obj = self._read(n)
elif b & 0b11110000 == 0b10010000:
n = b & 0b00001111
typ = TYPE_ARRAY
if n > self._max_array_len:
raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
raise ValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
elif b & 0b11110000 == 0b10000000:
n = b & 0b00001111
typ = TYPE_MAP
if n > self._max_map_len:
raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
raise ValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
elif b == 0xc0:
obj = None
elif b == 0xc2:
@ -389,55 +440,55 @@ class Unpacker(object):
n = self._buffer[self._buff_i]
self._buff_i += 1
if n > self._max_bin_len:
raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
raise ValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
obj = self._read(n)
elif b == 0xc5:
typ = TYPE_BIN
self._reserve(2)
n = struct.unpack_from(">H", self._buffer_view, self._buff_i)[0]
n = _unpack_from(">H", self._buffer, self._buff_i)[0]
self._buff_i += 2
if n > self._max_bin_len:
raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
raise ValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
obj = self._read(n)
elif b == 0xc6:
typ = TYPE_BIN
self._reserve(4)
n = struct.unpack_from(">I", self._buffer_view, self._buff_i)[0]
n = _unpack_from(">I", self._buffer, self._buff_i)[0]
self._buff_i += 4
if n > self._max_bin_len:
raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
raise ValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
obj = self._read(n)
elif b == 0xc7: # ext 8
typ = TYPE_EXT
self._reserve(2)
L, n = struct.unpack_from('Bb', self._buffer_view, self._buff_i)
L, n = _unpack_from('Bb', self._buffer, self._buff_i)
self._buff_i += 2
if L > self._max_ext_len:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
obj = self._read(L)
elif b == 0xc8: # ext 16
typ = TYPE_EXT
self._reserve(3)
L, n = struct.unpack_from('>Hb', self._buffer_view, self._buff_i)
L, n = _unpack_from('>Hb', self._buffer, self._buff_i)
self._buff_i += 3
if L > self._max_ext_len:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
obj = self._read(L)
elif b == 0xc9: # ext 32
typ = TYPE_EXT
self._reserve(5)
L, n = struct.unpack_from('>Ib', self._buffer_view, self._buff_i)
L, n = _unpack_from('>Ib', self._buffer, self._buff_i)
self._buff_i += 5
if L > self._max_ext_len:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
obj = self._read(L)
elif b == 0xca:
self._reserve(4)
obj = struct.unpack_from(">f", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">f", self._buffer, self._buff_i)[0]
self._buff_i += 4
elif b == 0xcb:
self._reserve(8)
obj = struct.unpack_from(">d", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">d", self._buffer, self._buff_i)[0]
self._buff_i += 8
elif b == 0xcc:
self._reserve(1)
@ -445,66 +496,66 @@ class Unpacker(object):
self._buff_i += 1
elif b == 0xcd:
self._reserve(2)
obj = struct.unpack_from(">H", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">H", self._buffer, self._buff_i)[0]
self._buff_i += 2
elif b == 0xce:
self._reserve(4)
obj = struct.unpack_from(">I", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">I", self._buffer, self._buff_i)[0]
self._buff_i += 4
elif b == 0xcf:
self._reserve(8)
obj = struct.unpack_from(">Q", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">Q", self._buffer, self._buff_i)[0]
self._buff_i += 8
elif b == 0xd0:
self._reserve(1)
obj = struct.unpack_from("b", self._buffer_view, self._buff_i)[0]
obj = _unpack_from("b", self._buffer, self._buff_i)[0]
self._buff_i += 1
elif b == 0xd1:
self._reserve(2)
obj = struct.unpack_from(">h", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">h", self._buffer, self._buff_i)[0]
self._buff_i += 2
elif b == 0xd2:
self._reserve(4)
obj = struct.unpack_from(">i", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">i", self._buffer, self._buff_i)[0]
self._buff_i += 4
elif b == 0xd3:
self._reserve(8)
obj = struct.unpack_from(">q", self._buffer_view, self._buff_i)[0]
obj = _unpack_from(">q", self._buffer, self._buff_i)[0]
self._buff_i += 8
elif b == 0xd4: # fixext 1
typ = TYPE_EXT
if self._max_ext_len < 1:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (1, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (1, self._max_ext_len))
self._reserve(2)
n, obj = struct.unpack_from("b1s", self._buffer_view, self._buff_i)
n, obj = _unpack_from("b1s", self._buffer, self._buff_i)
self._buff_i += 2
elif b == 0xd5: # fixext 2
typ = TYPE_EXT
if self._max_ext_len < 2:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (2, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (2, self._max_ext_len))
self._reserve(3)
n, obj = struct.unpack_from("b2s", self._buffer_view, self._buff_i)
n, obj = _unpack_from("b2s", self._buffer, self._buff_i)
self._buff_i += 3
elif b == 0xd6: # fixext 4
typ = TYPE_EXT
if self._max_ext_len < 4:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (4, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (4, self._max_ext_len))
self._reserve(5)
n, obj = struct.unpack_from("b4s", self._buffer_view, self._buff_i)
n, obj = _unpack_from("b4s", self._buffer, self._buff_i)
self._buff_i += 5
elif b == 0xd7: # fixext 8
typ = TYPE_EXT
if self._max_ext_len < 8:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (8, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (8, self._max_ext_len))
self._reserve(9)
n, obj = struct.unpack_from("b8s", self._buffer_view, self._buff_i)
n, obj = _unpack_from("b8s", self._buffer, self._buff_i)
self._buff_i += 9
elif b == 0xd8: # fixext 16
typ = TYPE_EXT
if self._max_ext_len < 16:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (16, self._max_ext_len))
raise ValueError("%s exceeds max_ext_len(%s)" % (16, self._max_ext_len))
self._reserve(17)
n, obj = struct.unpack_from("b16s", self._buffer_view, self._buff_i)
n, obj = _unpack_from("b16s", self._buffer, self._buff_i)
self._buff_i += 17
elif b == 0xd9:
typ = TYPE_RAW
@ -512,54 +563,54 @@ class Unpacker(object):
n = self._buffer[self._buff_i]
self._buff_i += 1
if n > self._max_str_len:
raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
obj = self._read(n)
elif b == 0xda:
typ = TYPE_RAW
self._reserve(2)
n, = struct.unpack_from(">H", self._buffer_view, self._buff_i)
n, = _unpack_from(">H", self._buffer, self._buff_i)
self._buff_i += 2
if n > self._max_str_len:
raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
obj = self._read(n)
elif b == 0xdb:
typ = TYPE_RAW
self._reserve(4)
n, = struct.unpack_from(">I", self._buffer_view, self._buff_i)
n, = _unpack_from(">I", self._buffer, self._buff_i)
self._buff_i += 4
if n > self._max_str_len:
raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
obj = self._read(n)
elif b == 0xdc:
typ = TYPE_ARRAY
self._reserve(2)
n, = struct.unpack_from(">H", self._buffer_view, self._buff_i)
n, = _unpack_from(">H", self._buffer, self._buff_i)
self._buff_i += 2
if n > self._max_array_len:
raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
raise ValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
elif b == 0xdd:
typ = TYPE_ARRAY
self._reserve(4)
n, = struct.unpack_from(">I", self._buffer_view, self._buff_i)
n, = _unpack_from(">I", self._buffer, self._buff_i)
self._buff_i += 4
if n > self._max_array_len:
raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
raise ValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
elif b == 0xde:
self._reserve(2)
n, = struct.unpack_from(">H", self._buffer_view, self._buff_i)
n, = _unpack_from(">H", self._buffer, self._buff_i)
self._buff_i += 2
if n > self._max_map_len:
raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
raise ValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
typ = TYPE_MAP
elif b == 0xdf:
self._reserve(4)
n, = struct.unpack_from(">I", self._buffer_view, self._buff_i)
n, = _unpack_from(">I", self._buffer, self._buff_i)
self._buff_i += 4
if n > self._max_map_len:
raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
raise ValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
typ = TYPE_MAP
else:
raise UnpackValueError("Unknown header: 0x%x" % b)
raise FormatError("Unknown header: 0x%x" % b)
return typ, n, obj
def _unpack(self, execute=EX_CONSTRUCT):
@ -567,11 +618,11 @@ class Unpacker(object):
if execute == EX_READ_ARRAY_HEADER:
if typ != TYPE_ARRAY:
raise UnpackValueError("Expected array")
raise ValueError("Expected array")
return n
if execute == EX_READ_MAP_HEADER:
if typ != TYPE_MAP:
raise UnpackValueError("Expected map")
raise ValueError("Expected map")
return n
# TODO should we eliminate the recursion?
if typ == TYPE_ARRAY:
@ -603,6 +654,8 @@ class Unpacker(object):
ret = {}
for _ in xrange(n):
key = self._unpack(EX_CONSTRUCT)
if self._strict_map_key and type(key) not in (unicode, bytes):
raise ValueError("%s is not allowed for map key" % str(type(key)))
ret[key] = self._unpack(EX_CONSTRUCT)
if self._object_hook is not None:
ret = self._object_hook(ret)
@ -635,37 +688,30 @@ class Unpacker(object):
except OutOfData:
self._consume()
raise StopIteration
except RecursionError:
raise StackError
next = __next__
def skip(self, write_bytes=None):
def skip(self):
self._unpack(EX_SKIP)
if write_bytes is not None:
warnings.warn("`write_bytes` option is deprecated. Use `.tell()` instead.", DeprecationWarning)
write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
self._consume()
def unpack(self, write_bytes=None):
ret = self._unpack(EX_CONSTRUCT)
if write_bytes is not None:
warnings.warn("`write_bytes` option is deprecated. Use `.tell()` instead.", DeprecationWarning)
write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
def unpack(self):
try:
ret = self._unpack(EX_CONSTRUCT)
except RecursionError:
raise StackError
self._consume()
return ret
def read_array_header(self, write_bytes=None):
def read_array_header(self):
ret = self._unpack(EX_READ_ARRAY_HEADER)
if write_bytes is not None:
warnings.warn("`write_bytes` option is deprecated. Use `.tell()` instead.", DeprecationWarning)
write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
self._consume()
return ret
def read_map_header(self, write_bytes=None):
def read_map_header(self):
ret = self._unpack(EX_READ_MAP_HEADER)
if write_bytes is not None:
warnings.warn("`write_bytes` option is deprecated. Use `.tell()` instead.", DeprecationWarning)
write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
self._consume()
return ret
@ -722,7 +768,7 @@ class Packer(object):
else:
warnings.warn(
"encoding is deprecated, Use raw=False instead.",
PendingDeprecationWarning)
DeprecationWarning, stacklevel=2)
if unicode_errors is None:
unicode_errors = 'strict'
@ -749,7 +795,7 @@ class Packer(object):
list_types = (list, tuple)
while True:
if nest_limit < 0:
raise PackValueError("recursion limit exceeded")
raise ValueError("recursion limit exceeded")
if obj is None:
return self._buffer.write(b"\xc0")
if check(obj, bool):
@ -781,14 +827,14 @@ class Packer(object):
obj = self._default(obj)
default_used = True
continue
raise PackOverflowError("Integer value out of range")
raise OverflowError("Integer value out of range")
if check(obj, (bytes, bytearray)):
n = len(obj)
if n >= 2**32:
raise PackValueError("%s is too large" % type(obj).__name__)
raise ValueError("%s is too large" % type(obj).__name__)
self._pack_bin_header(n)
return self._buffer.write(obj)
if check(obj, Unicode):
if check(obj, unicode):
if self._encoding is None:
raise TypeError(
"Can't encode unicode string: "
@ -796,13 +842,13 @@ class Packer(object):
obj = obj.encode(self._encoding, self._unicode_errors)
n = len(obj)
if n >= 2**32:
raise PackValueError("String is too large")
raise ValueError("String is too large")
self._pack_raw_header(n)
return self._buffer.write(obj)
if check(obj, memoryview):
n = len(obj) * obj.itemsize
if n >= 2**32:
raise PackValueError("Memoryview is too large")
raise ValueError("Memoryview is too large")
self._pack_bin_header(n)
return self._buffer.write(obj)
if check(obj, float):
@ -855,43 +901,35 @@ class Packer(object):
except:
self._buffer = StringIO() # force reset
raise
ret = self._buffer.getvalue()
if self._autoreset:
ret = self._buffer.getvalue()
self._buffer = StringIO()
elif USING_STRINGBUILDER:
self._buffer = StringIO(ret)
return ret
return ret
def pack_map_pairs(self, pairs):
self._pack_map_pairs(len(pairs), pairs)
ret = self._buffer.getvalue()
if self._autoreset:
ret = self._buffer.getvalue()
self._buffer = StringIO()
elif USING_STRINGBUILDER:
self._buffer = StringIO(ret)
return ret
return ret
def pack_array_header(self, n):
if n >= 2**32:
raise PackValueError
raise ValueError
self._pack_array_header(n)
ret = self._buffer.getvalue()
if self._autoreset:
ret = self._buffer.getvalue()
self._buffer = StringIO()
elif USING_STRINGBUILDER:
self._buffer = StringIO(ret)
return ret
return ret
def pack_map_header(self, n):
if n >= 2**32:
raise PackValueError
raise ValueError
self._pack_map_header(n)
ret = self._buffer.getvalue()
if self._autoreset:
ret = self._buffer.getvalue()
self._buffer = StringIO()
elif USING_STRINGBUILDER:
self._buffer = StringIO(ret)
return ret
return ret
def pack_ext_type(self, typecode, data):
if not isinstance(typecode, int):
@ -902,7 +940,7 @@ class Packer(object):
raise TypeError("data must have bytes type")
L = len(data)
if L > 0xffffffff:
raise PackValueError("Too large data")
raise ValueError("Too large data")
if L == 1:
self._buffer.write(b'\xd4')
elif L == 2:
@ -929,7 +967,7 @@ class Packer(object):
return self._buffer.write(struct.pack(">BH", 0xdc, n))
if n <= 0xffffffff:
return self._buffer.write(struct.pack(">BI", 0xdd, n))
raise PackValueError("Array is too large")
raise ValueError("Array is too large")
def _pack_map_header(self, n):
if n <= 0x0f:
@ -938,7 +976,7 @@ class Packer(object):
return self._buffer.write(struct.pack(">BH", 0xde, n))
if n <= 0xffffffff:
return self._buffer.write(struct.pack(">BI", 0xdf, n))
raise PackValueError("Dict is too large")
raise ValueError("Dict is too large")
def _pack_map_pairs(self, n, pairs, nest_limit=DEFAULT_RECURSE_LIMIT):
self._pack_map_header(n)
@ -956,7 +994,7 @@ class Packer(object):
elif n <= 0xffffffff:
self._buffer.write(struct.pack(">BI", 0xdb, n))
else:
raise PackValueError('Raw is too large')
raise ValueError('Raw is too large')
def _pack_bin_header(self, n):
if not self._use_bin_type:
@ -968,10 +1006,22 @@ class Packer(object):
elif n <= 0xffffffff:
return self._buffer.write(struct.pack(">BI", 0xc6, n))
else:
raise PackValueError('Bin is too large')
raise ValueError('Bin is too large')
def bytes(self):
"""Return internal buffer contents as bytes object"""
return self._buffer.getvalue()
def reset(self):
"""Reset internal buffer.
This method is usaful only when autoreset=False.
"""
self._buffer = StringIO()
def getbuffer(self):
"""Return view of internal buffer."""
if USING_STRINGBUILDER or PY2:
return memoryview(self.bytes())
else:
return self._buffer.getbuffer()

2
src/pip/_vendor/vendor.txt
View File

@ -6,7 +6,7 @@ distro==1.4.0
html5lib==1.0.1
ipaddress==1.0.22 # Only needed on 2.6 and 2.7
lockfile==0.12.2
msgpack==0.5.6
msgpack==0.6.1
packaging==19.0
pep517==0.5.0
progress==1.5

204
tasks/vendoring/patches/msgpack.patch
View File

@ -1,204 +0,0 @@
diff --git a/src/pip/_vendor/msgpack/fallback.py b/msgpack/fallback.py
index c0e5fd66..c8c8c78a 100644
--- a/src/pip/_vendor/msgpack/fallback.py
+++ b/src/pip/_vendor/msgpack/fallback.py
@@ -234,6 +234,12 @@ def __init__(self, file_like=None, read_size=0, use_list=True, raw=True,
#: array of bytes fed.
self._buffer = bytearray()
+ # Some very old pythons don't support `struct.unpack_from()` with a
+ # `bytearray`. So we wrap it in a `buffer()` there.
+ if sys.version_info < (2, 7, 6):
+ self._buffer_view = buffer(self._buffer)
+ else:
+ self._buffer_view = self._buffer
#: Which position we currently reads
self._buff_i = 0
@@ -388,7 +394,7 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xc5:
typ = TYPE_BIN
self._reserve(2)
- n = struct.unpack_from(">H", self._buffer, self._buff_i)[0]
+ n = struct.unpack_from(">H", self._buffer_view, self._buff_i)[0]
self._buff_i += 2
if n > self._max_bin_len:
raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
@@ -396,7 +402,7 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xc6:
typ = TYPE_BIN
self._reserve(4)
- n = struct.unpack_from(">I", self._buffer, self._buff_i)[0]
+ n = struct.unpack_from(">I", self._buffer_view, self._buff_i)[0]
self._buff_i += 4
if n > self._max_bin_len:
raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
@@ -404,7 +410,7 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xc7: # ext 8
typ = TYPE_EXT
self._reserve(2)
- L, n = struct.unpack_from('Bb', self._buffer, self._buff_i)
+ L, n = struct.unpack_from('Bb', self._buffer_view, self._buff_i)
self._buff_i += 2
if L > self._max_ext_len:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
@@ -412,7 +418,7 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xc8: # ext 16
typ = TYPE_EXT
self._reserve(3)
- L, n = struct.unpack_from('>Hb', self._buffer, self._buff_i)
+ L, n = struct.unpack_from('>Hb', self._buffer_view, self._buff_i)
self._buff_i += 3
if L > self._max_ext_len:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
@@ -420,18 +426,18 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xc9: # ext 32
typ = TYPE_EXT
self._reserve(5)
- L, n = struct.unpack_from('>Ib', self._buffer, self._buff_i)
+ L, n = struct.unpack_from('>Ib', self._buffer_view, self._buff_i)
self._buff_i += 5
if L > self._max_ext_len:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
obj = self._read(L)
elif b == 0xca:
self._reserve(4)
- obj = struct.unpack_from(">f", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">f", self._buffer_view, self._buff_i)[0]
self._buff_i += 4
elif b == 0xcb:
self._reserve(8)
- obj = struct.unpack_from(">d", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">d", self._buffer_view, self._buff_i)[0]
self._buff_i += 8
elif b == 0xcc:
self._reserve(1)
@@ -439,66 +445,66 @@ def _read_header(self, execute=EX_CONSTRUCT):
self._buff_i += 1
elif b == 0xcd:
self._reserve(2)
- obj = struct.unpack_from(">H", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">H", self._buffer_view, self._buff_i)[0]
self._buff_i += 2
elif b == 0xce:
self._reserve(4)
- obj = struct.unpack_from(">I", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">I", self._buffer_view, self._buff_i)[0]
self._buff_i += 4
elif b == 0xcf:
self._reserve(8)
- obj = struct.unpack_from(">Q", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">Q", self._buffer_view, self._buff_i)[0]
self._buff_i += 8
elif b == 0xd0:
self._reserve(1)
- obj = struct.unpack_from("b", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from("b", self._buffer_view, self._buff_i)[0]
self._buff_i += 1
elif b == 0xd1:
self._reserve(2)
- obj = struct.unpack_from(">h", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">h", self._buffer_view, self._buff_i)[0]
self._buff_i += 2
elif b == 0xd2:
self._reserve(4)
- obj = struct.unpack_from(">i", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">i", self._buffer_view, self._buff_i)[0]
self._buff_i += 4
elif b == 0xd3:
self._reserve(8)
- obj = struct.unpack_from(">q", self._buffer, self._buff_i)[0]
+ obj = struct.unpack_from(">q", self._buffer_view, self._buff_i)[0]
self._buff_i += 8
elif b == 0xd4: # fixext 1
typ = TYPE_EXT
if self._max_ext_len < 1:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (1, self._max_ext_len))
self._reserve(2)
- n, obj = struct.unpack_from("b1s", self._buffer, self._buff_i)
+ n, obj = struct.unpack_from("b1s", self._buffer_view, self._buff_i)
self._buff_i += 2
elif b == 0xd5: # fixext 2
typ = TYPE_EXT
if self._max_ext_len < 2:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (2, self._max_ext_len))
self._reserve(3)
- n, obj = struct.unpack_from("b2s", self._buffer, self._buff_i)
+ n, obj = struct.unpack_from("b2s", self._buffer_view, self._buff_i)
self._buff_i += 3
elif b == 0xd6: # fixext 4
typ = TYPE_EXT
if self._max_ext_len < 4:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (4, self._max_ext_len))
self._reserve(5)
- n, obj = struct.unpack_from("b4s", self._buffer, self._buff_i)
+ n, obj = struct.unpack_from("b4s", self._buffer_view, self._buff_i)
self._buff_i += 5
elif b == 0xd7: # fixext 8
typ = TYPE_EXT
if self._max_ext_len < 8:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (8, self._max_ext_len))
self._reserve(9)
- n, obj = struct.unpack_from("b8s", self._buffer, self._buff_i)
+ n, obj = struct.unpack_from("b8s", self._buffer_view, self._buff_i)
self._buff_i += 9
elif b == 0xd8: # fixext 16
typ = TYPE_EXT
if self._max_ext_len < 16:
raise UnpackValueError("%s exceeds max_ext_len(%s)" % (16, self._max_ext_len))
self._reserve(17)
- n, obj = struct.unpack_from("b16s", self._buffer, self._buff_i)
+ n, obj = struct.unpack_from("b16s", self._buffer_view, self._buff_i)
self._buff_i += 17
elif b == 0xd9:
typ = TYPE_RAW
@@ -511,7 +517,7 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xda:
typ = TYPE_RAW
self._reserve(2)
- n, = struct.unpack_from(">H", self._buffer, self._buff_i)
+ n, = struct.unpack_from(">H", self._buffer_view, self._buff_i)
self._buff_i += 2
if n > self._max_str_len:
raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
@@ -519,7 +525,7 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xdb:
typ = TYPE_RAW
self._reserve(4)
- n, = struct.unpack_from(">I", self._buffer, self._buff_i)
+ n, = struct.unpack_from(">I", self._buffer_view, self._buff_i)
self._buff_i += 4
if n > self._max_str_len:
raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
@@ -527,27 +533,27 @@ def _read_header(self, execute=EX_CONSTRUCT):
elif b == 0xdc:
typ = TYPE_ARRAY
self._reserve(2)
- n, = struct.unpack_from(">H", self._buffer, self._buff_i)
+ n, = struct.unpack_from(">H", self._buffer_view, self._buff_i)
self._buff_i += 2
if n > self._max_array_len:
raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
elif b == 0xdd:
typ = TYPE_ARRAY
self._reserve(4)
- n, = struct.unpack_from(">I", self._buffer, self._buff_i)
+ n, = struct.unpack_from(">I", self._buffer_view, self._buff_i)
self._buff_i += 4
if n > self._max_array_len:
raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
elif b == 0xde:
self._reserve(2)
- n, = struct.unpack_from(">H", self._buffer, self._buff_i)
+ n, = struct.unpack_from(">H", self._buffer_view, self._buff_i)
self._buff_i += 2
if n > self._max_map_len:
raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
typ = TYPE_MAP
elif b == 0xdf:
self._reserve(4)
- n, = struct.unpack_from(">I", self._buffer, self._buff_i)
+ n, = struct.unpack_from(">I", self._buffer_view, self._buff_i)
self._buff_i += 4
if n > self._max_map_len:
raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)