10000 Python 3 modifications · gitpython-developers/async@8eb3d87 · GitHub
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This repository was archived by the owner on Apr 14, 2024. It is now read-only.

Commit 8eb3d87

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author
Morten Kjeldgaard
committed
Python 3 modifications
1 parent 90326fb commit 8eb3d87

16 files changed

+148
-81
lines changed

‎async/__init__.py

Lines changed: 8 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -9,19 +9,19 @@ def _init_atexit():
99
"""Setup an at-exit job to be sure our workers are shutdown correctly before
1010
the interpreter quits"""
1111
import atexit
12-
import thread
12+
from . import thread
1313
atexit.register< ED4F /span>(thread.do_terminate_threads)
1414

1515
def _init_signals():
1616
"""Assure we shutdown our threads correctly when being interrupted"""
1717
import signal
18-
import thread
18+
from . import thread
1919
import sys
2020

2121
prev_handler = signal.getsignal(signal.SIGINT)
2222
def thread_interrupt_handler(signum, frame):
2323
thread.do_terminate_threads()
24-
if callable(prev_handler):
24+
if isinstance(prev_handler, collections.Callable):
2525
prev_handler(signum, frame)
2626
raise KeyboardInterrupt()
2727
# END call previous handler
@@ -30,7 +30,7 @@ def thread_interrupt_handler(signum, frame):
3030
signal.signal(signal.SIGINT, thread_interrupt_handler)
3131
except ValueError:
3232
# happens if we don't try it from the main thread
33-
print >> sys.stderr, "Failed to setup thread-interrupt handler. This is usually not critical"
33+
print("Failed to setup thread-interrupt handler. This is usually not critical", file=sys.stderr)
3434
# END exception handling
3535

3636

@@ -41,6 +41,7 @@ def thread_interrupt_handler(signum, frame):
4141

4242

4343
# initial imports
44-
from task import *
45-
from pool import *
46-
from channel import *
44+
from .task import *
45+
from .pool import *
46+
from .channel import *
47+
import collections

‎async/channel.py

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -3,12 +3,12 @@
33
# This module is part of async and is released under
44
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
55
"""Contains a queue based channel implementation"""
6-
from Queue import (
6+
from queue import (
77
Empty,
88
Full
99
)
1010

11-
from util import (
11+
from .util import (
1212
AsyncQueue,
1313
SyncQueue,
1414
ReadOnly
@@ -154,7 +154,7 @@ def __init__(self, device):
154154
def __iter__(self):
155155
return self
156156

157-
def next(self):
157+
def __next__(self):
158158
"""Implements the iterator protocol, iterating individual items"""
159159
items = self.read(1)
160160
if items:
@@ -220,7 +220,7 @@ def read(self, count=0, block=True, timeout=None):
220220
out.append(queue.get(False))
221221
# END for each item
222222
else:
223-
for i in xrange(count):
223+
for i in range(count):
224224
out.append(queue.get(False))
225225
# END for each item
226226
# END handle count
@@ -230,7 +230,7 @@ def read(self, count=0, block=True, timeout=None):
230230
else:
231231
# to get everything into one loop, we set the count accordingly
232232
if count == 0:
233-
count = sys.maxint
233+
count = sys.maxsize
234234
# END handle count
235235

236236
i = 0
@@ -353,9 +353,9 @@ def read(self, count=0, block=True, timeout=None):
353353
else:
354354
out = list()
355355
it = self._iter
356-
for i in xrange(count):
356+
for i in range(count):
357357
try:
358-
out.append(it.next())
358+
out.append(next(it))
359359
except StopIteration:
360360
self._empty = True
361361
break

‎async/mod/zlibmodule.c

Lines changed: 66 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3,10 +3,21 @@
33

44
/* Windows users: read Python's PCbuild\readme.txt */
55

6-
76
#include "Python.h"
87
#include "zlib.h"
98

9+
#if PY_MAJOR_VERSION >= 3
10+
#define PyInt_FromLong PyLong_FromLong
11+
#define PyString_FromString PyUnicode_FromString
12+
#define PyString_FromStringAndSize PyUnicode_FromStringAndSize
13+
#define PyString_AS_STRING PyUnicode_AS_UNICODE
14+
#define _PyString_Resize PyUnicode_Resize
15+
#define PyText_AS_UTF8 _PyUnicode_AsString
16+
#define PyText_Check PyUnicode_Check
17+
#endif
18+
19+
20+
1021
#ifdef WITH_THREAD
1122
#include "pythread.h"
1223

@@ -897,6 +908,23 @@ static PyMethodDef Decomp_methods[] =
897908
{NULL, NULL}
898909
};
899910

911+
912+
/*
913+
Py_FindMethod gone in Python 3, so Comp_getattr and Decomp_getattr
914+
have to be rewritten. I googled the following tip somewhere:
915+
916+
"The same functionality can be achieved with the tp_getattro slot:
917+
implement your special dynamic attributes there, and then call
918+
PyObject_GenericGetAttr for the default behavior. You may have a
919+
look at the implementation of the pyexpat module:
920+
Modules/pyexpat.c, function xmlparse_getattro."
921+
922+
Looking at xmlparse_getattro [1] it seems it could be readily adopted
923+
here.
924+
925+
[1] http://svn.python.org/projects/python/branches/py3k/Modules/pyexpat.c
926+
*/
927+
900928
static PyObject *
901929
Comp_getattr(compobject *self, char *name)
902930
{
@@ -1052,17 +1080,50 @@ PyDoc_STRVAR(zlib_module_documentation,
10521080
"Compressor objects support compress() and flush() methods; decompressor\n"
10531081
"objects support decompress() and flush().");
10541082

1083+
#if PY_MAJOR_VERSION >= 3
1084+
/* See http://python3porting.com/cextensions.html */
1085+
static struct PyModuleDef zlib_moddef = {
1086+
PyModuleDef_HEAD_INIT,
1087+
"zlib",
1088+
zlib_module_documentation,
1089+
-1,
1090+
zlib_methods,
1091+
NULL, NULL, NULL, NULL
1092+
};
1093+
#endif
1094+
1095+
1096+
10551097
PyMODINIT_FUNC
10561098
PyInit_zlib(void)
10571099
{
10581100
PyObject *m, *ver;
1101+
1102+
#if PY_MAJOR_VERSION >= 3
1103+
/* Use this version check as a replacement for Py_InitModule4 */
1104+
ver = PySys_GetObject("version");
1105+
if (ver == NULL || !PyText_Check(ver) ||
1106+
strncmp(PyText_AS_UTF8(ver), PY_VERSION, 3) != 0) {
1107+
PyErr_Format(PyExc_ImportError,
1108+
"this module was compiled for Python %c%c%c",
1109+
PY_VERSION[0], PY_VERSION[1], PY_VERSION[2]);
1110+
return NULL;
1111+
}
1112+
#endif
1113+
10591114
Py_TYPE(&Comptype) = &PyType_Type;
10601115
Py_TYPE(&Decomptype) = &PyType_Type;
1116+
#if PY_MAJOR_VERSION >= 3
1117+
m = PyModule_Create(&zlib_moddef);
1118+
if (m == NULL)
1119+
return m;
1120+
#else
10611121
m = Py_InitModule4("zlib", zlib_methods,
10621122
zlib_module_documentation,
10631123
(PyObject*)NULL,PYTHON_API_VERSION);
10641124
if (m == NULL)
10651125
return;
1126+
#endif
10661127

10671128
ZlibError = PyErr_NewException("zlib.error", NULL, NULL);
10681129
if (ZlibError != NULL) {
@@ -1101,4 +1162,8 @@ PyInit_zlib(void)
11011162
PyModule_AddObject(m, "ZLIB_VERSION", ver);
11021163

11031164
PyModule_AddStringConstant(m, "__version__", "1.0");
1165+
1166+
#if PY_MAJOR_VERSION >= 3
1167+
return m;
1168+
#endif
11041169
}

‎async/pool.py

Lines changed: 8 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -3,24 +3,24 @@
33
# This module is part of async and is released under
44
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
55
"""Implementation of a thread-pool working with channels"""
6-
from thread import (
6+
from .thread import (
77
WorkerThread,
88
StopProcessing,
99
)
1010
from threading import Lock
1111

12-
from util import (
12+
from .util import (
1313
AsyncQueue,
1414
DummyLock
1515
)
1616

17-
from Queue import (
17+
from queue import (
1818
Queue,
1919
Empty
2020
)
2121

22-
from graph import Graph
23-
from channel import (
22+
from .graph import Graph
23+
from .channel import (
2424
mkchannel,
2525
ChannelWriter,
2626
Channel,
@@ -31,6 +31,7 @@
3131
import sys
3232
import weakref
3333
from time import sleep
34+
from functools import reduce
3435

3536

3637
__all__ = ('PoolReader', 'Pool', 'ThreadPool')
@@ -284,7 +285,7 @@ def _prepare_channel_read(self, task, count):
284285
# to process too much. This can be defined per task
285286
qput = self._queue.put
286287
if numchunks > 1:
287-
for i in xrange(numchunks):
288+
for i in range(numchunks):
288289
qput((task.process, chunksize))
289290
# END for each chunk to put
290291
else:
@@ -297,7 +298,7 @@ def _prepare_channel_read(self, task, count):
297298
else:
298299
# no workers, so we have to do the work ourselves
299300
if numchunks > 1:
300-
for i in xrange(numchunks):
301+
for i in range(numchunks):
301302
task.process(chunksize)
302303
# END for each chunk to put
303304
else:

‎async/task.py

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -2,9 +2,9 @@
22
#
33
# This module is part of async and is released under
44
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
5-
from graph import Node
6-
from util import ReadOnly
7-
from channel import IteratorReader
5+
from .graph import Node
6+
from .util import ReadOnly
7+
from .channel import IteratorReader
88

99
import threading
1010
import weakref
@@ -128,7 +128,7 @@ def process(self, count=0):
128128
self._num_writers -= 1
129129
self._wlock.release()
130130
# END handle writer count
131-
except Exception, e:
131+
except Exception as e:
132132
# be sure our task is not scheduled again
133133
self.set_done()
134134

@@ -226,7 +226,7 @@ def reader(self):
226226
""":return: input channel from which we read"""
227227
# the instance is bound in its instance method - lets use this to keep
228228
# the refcount at one ( per consumer )
229-
return self._read.im_self
229+
return self._read.__self__
230230

231231
def set_read(self, read):
232232
"""Adjust the read method to the given one"""

‎async/test/task.py

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -39,7 +39,7 @@ def _assert(self, pc, fc, check_scheduled=False):
3939
:return: self"""
4040
self.lock.acquire()
4141
if self.item_count != fc:
42-
print self.item_count, fc
42+
print(self.item_count, fc)
4343
assert self.item_count == fc
4444
self.lock.release()
4545

@@ -166,7 +166,7 @@ def add_task_chain(p, ni, count=1, fail_setup=list(), feeder_channel=None, id_of
166166
tasks = [feeder]
167167

168168
inrc = frc
169-
for tc in xrange(count):
169+
for tc in range(count):
170170
t = transformercls(inrc, tc+id_offset, None)
171171

172172
t.fun = make_proxy_method(t)
@@ -198,7 +198,7 @@ def make_iterator_task(ni, taskcls=TestThreadTask, **kwargs):
198198
""":return: task which yields ni items
199199
:param taskcls: the actual iterator type to use
200200
:param kwargs: additional kwargs to be passed to the task"""
201-
t = taskcls(iter(range(ni)), 'iterator', None, **kwargs)
201+
t = taskcls(iter(list(range(ni))), 'iterator', None, **kwargs)
202202
if isinstance(t, _TestTaskBase):
203203
t.fun = make_proxy_method(t)
204204
return t

‎async/test/test_channel.py

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
# This module is part of async and is released under
44
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
55
"""Channel testing"""
6-
from lib import *
6+
from .lib import *
77
from async.channel import *
88

99
import time
@@ -83,7 +83,7 @@ def post_read(items):
8383

8484

8585
# ITERATOR READER
86-
reader = IteratorReader(iter(range(10)))
86+
reader = IteratorReader(iter(list(range(10))))
8787
assert len(reader.read(2)) == 2
8888
assert len(reader.read(0)) == 8
8989
# its empty now
@@ -95,7 +95,7 @@ def post_read(items):
9595

9696

9797
# test general read-iteration - its supported by all readers
98-
reader = IteratorReader(iter(range(10)))
98+
reader = IteratorReader(iter(list(range(10))))
9999
assert len(list(reader)) == 10
100100

101101
# NOTE: its thread-safety is tested by the pool

‎async/test/test_example.py

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
# This module is part of async and is released under
44
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
55
"""Module containing examples from the documentaiton"""
6-
from lib import *
6+
from .lib import *
77

88
from async.pool import *
99
from async.task import *
@@ -25,7 +25,7 @@ def test_usage(self):
2525
assert p.size() == 1
2626

2727
# A task performing processing on items from an iterator
28-
t = IteratorThreadTask(iter(range(10)), "power", lambda i: i*i)
28+
t = IteratorThreadTask(iter(list(range(10))), "power", lambda i: i*i)
2929
reader = p.add_task(t)
3030

3131
# read all items - they where procesed by worker 1
@@ -34,7 +34,7 @@ def test_usage(self):
3434

3535

3636
# chaining
37-
t = IteratorThreadTask(iter(range(10)), "power", lambda i: i*i)
37+
t = IteratorThreadTask(iter(list(range(10))), "power", lambda i: i*i)
3838
reader = p.add_task(t)
3939

4040
# chain both by linking their readers

‎async/test/test_graph.py

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
# This module is part of async and is released under
44
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
55
"""Channel testing"""
6-
from lib import *
6+
from .lib import *
77
from async.graph import *
88

99
import time

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