Merge pull request #190 from pycompression/release_1.6.0

Release 1.6.0

.github/workflows/ci.yml

@@ -62,6 +62,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13-dev"
           - "pypy-3.9"
           - "pypy-3.10"
         os: ["ubuntu-latest"]

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "src/isal/isa-l"]
 	path = src/isal/isa-l
-	url = https://github.com/rhpvorderman/isa-l.git
+	url = https://github.com/intel/isa-l.git

CHANGELOG.rst

@@ -7,6 +7,13 @@ Changelog
 .. This document is user facing. Please word the changes in such a way
 .. that users understand how the changes affect the new version.
 
+version 1.6.0
+-----------------
++ Fix a bug where compression levels for IGzipFile where checked in read mode.
++ Update statically linked ISA-L release to 2.31.0
++ Fix an error that occurred in the ``__close__`` function when a threaded
+  writer was initialized with incorrect parameters.
+
 version 1.5.3
 -----------------
 + Fix a bug where append mode would not work when using

setup.py

@@ -33,16 +33,11 @@
                                        DEFAULT_CACHE_FILE))
 
 EXTENSIONS = [
-        Extension("isal.isal_zlib", ["src/isal/isal_zlibmodule.c"]),
-        Extension("isal.igzip_lib", ["src/isal/igzip_libmodule.c"]),
+    Extension("isal.isal_zlib", ["src/isal/isal_zlibmodule.c"]),
+    Extension("isal.igzip_lib", ["src/isal/igzip_libmodule.c"]),
+    Extension("isal._isal", ["src/isal/_isalmodule.c"]),
     ]
 
-# This does not add the extension on windows for dynamic linking. The required
-# header file might be missing.
-if not (SYSTEM_IS_WINDOWS and
-        os.getenv("PYTHON_ISAL_LINK_DYNAMIC") is not None):
-    EXTENSIONS.append(Extension("isal._isal", ["src/isal/_isalmodule.c"]))
-
 
 class BuildIsalExt(build_ext):
     def build_extension(self, ext):
@@ -135,7 +130,7 @@ def build_isa_l():
 
 setup(
     name="isal",
-    version="1.5.3",
+    version="1.6.0",
     description="Faster zlib and gzip compatible compression and "
                 "decompression by providing python bindings for the ISA-L "
                 "library.",

src/isal/__init__.py

@@ -5,19 +5,8 @@
 # This file is part of python-isal which is distributed under the
 # PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2.
 
-from typing import Optional
-
-try:
-    from . import _isal
-    ISAL_MAJOR_VERSION: Optional[int] = _isal.ISAL_MAJOR_VERSION
-    ISAL_MINOR_VERSION: Optional[int] = _isal.ISAL_MINOR_VERSION
-    ISAL_PATCH_VERSION: Optional[int] = _isal.ISAL_PATCH_VERSION
-    ISAL_VERSION: Optional[str] = _isal.ISAL_VERSION
-except ImportError:
-    ISAL_MAJOR_VERSION = None
-    ISAL_MINOR_VERSION = None
-    ISAL_PATCH_VERSION = None
-    ISAL_VERSION = None
+from ._isal import (ISAL_MAJOR_VERSION, ISAL_MINOR_VERSION, ISAL_PATCH_VERSION,
+                    ISAL_VERSION)
 
 __all__ = [
     "ISAL_MAJOR_VERSION",
@@ -27,4 +16,4 @@
     "__version__"
 ]
 
-__version__ = "1.5.3"
+__version__ = "1.6.0"

src/isal/igzip.py

@@ -151,11 +151,12 @@ def __init__(self, filename=None, mode=None,
         If omitted or None, the current time is used.
         """
         if not (isal_zlib.ISAL_BEST_SPEED <= compresslevel
-                <= isal_zlib.ISAL_BEST_COMPRESSION):
+                <= isal_zlib.ISAL_BEST_COMPRESSION) and "r" not in mode:
             raise ValueError(
-                "Compression level should be between {0} and {1}.".format(
-                    isal_zlib.ISAL_BEST_SPEED, isal_zlib.ISAL_BEST_COMPRESSION
-                ))
+                f"Compression level should be between "
+                f"{isal_zlib.ISAL_BEST_SPEED} and "
+                f"{isal_zlib.ISAL_BEST_COMPRESSION}, got {compresslevel}."
+            )
         super().__init__(filename, mode, compresslevel, fileobj, mtime)
         if self.mode == WRITE:
             self.compress = isal_zlib.compressobj(compresslevel,

src/isal/igzip_threaded.py

@@ -204,6 +204,9 @@ def __init__(self,
                  queue_size: int = 1,
                  block_size: int = 1024 * 1024,
                  ):
+        # File should be closed during init, so __exit__ method does not
+        # touch the self.raw value before it is initialized.
+        self._closed = True
         if "t" in mode or "r" in mode:
             raise ValueError("Only binary writing is supported")
         if "b" not in mode:
@@ -243,8 +246,8 @@ def __init__(self,
         self._crc = 0
         self.running = False
         self._size = 0
-        self._closed = False
         self.raw = open_as_binary_stream(filename, mode)
+        self._closed = False
         self._write_gzip_header()
         self.start()
 

src/isal/isal_zlibmodule.c

@@ -2017,7 +2017,7 @@ GzipReader_readall(GzipReader *self, PyObject *Py_UNUSED(ignore))
         Py_DECREF(chunk_list);
         return NULL;
     }
-    PyObject *ret = _PyBytes_Join(empty_bytes, chunk_list);
+    PyObject *ret = PyObject_CallMethod(empty_bytes, "join", "O", chunk_list);
     Py_DECREF(empty_bytes);
     Py_DECREF(chunk_list);
     return ret;

tests/test_compat.py

@@ -11,7 +11,6 @@
 
 import gzip
 import itertools
-import os
 import zlib
 from pathlib import Path
 
@@ -35,8 +34,6 @@
 # Wbits for ZLIB compression, GZIP compression, and RAW compressed streams
 WBITS_RANGE = list(range(9, 16)) + list(range(25, 32)) + list(range(-15, -8))
 
-DYNAMICALLY_LINKED = os.getenv("PYTHON_ISAL_LINK_DYNAMIC") is not None
-
 
 @pytest.mark.parametrize(["data_size", "value"],
                          itertools.product(DATA_SIZES, SEEDS))
@@ -93,8 +90,6 @@ def test_decompress_isal_zlib(data_size, level):
 @pytest.mark.parametrize(["data_size", "level", "wbits", "memLevel"],
                          itertools.product([128 * 1024], range(4),
                                            WBITS_RANGE, range(1, 10)))
-@pytest.mark.xfail(condition=DYNAMICALLY_LINKED,
-                   reason="Dynamically linked version may not have patch.")
 def test_compress_compressobj(data_size, level, wbits, memLevel):
     data = DATA[:data_size]
     compressobj = isal_zlib.compressobj(level=level,

tests/test_gzip_compliance.py

@@ -456,6 +456,13 @@ def test_with_open(self):
         else:
             self.fail("1/0 didn't raise an exception")
 
+    def test_read_and_compresslevel(self):
+        with igzip.GzipFile(self.filename, "wb") as f:
+            f.write(b"xxx")
+        with igzip.GzipFile(self.filename, "rb", compresslevel=17) as f:
+            data = f.read()
+        assert data == b"xxx"
+
     def test_zero_padded_file(self):
         with igzip.GzipFile(self.filename, "wb") as f:
             f.write(data1 * 50)
@@ -785,6 +792,13 @@ def test_newline(self):
         with igzip.open(self.filename, "rt", newline="\r") as f:
             self.assertEqual(f.readlines(), [uncompressed])
 
+    def test_reading_and_compresslevel(self):
+        with igzip.open(self.filename, "wb") as f:
+            f.write(data1)
+        with igzip.open(self.filename, "rb", compresslevel=17) as f:
+            text = f.read()
+        assert text == data1
+
 
 def create_and_remove_directory(directory):
     def decorator(function):

tests/test_igzip_threaded.py

@@ -191,3 +191,11 @@ def test_igzip_threaded_append_text_mode(tmp_path):
     with gzip.open(test_file, "rt") as f:
         contents = f.read()
     assert contents == "ABCD"
+
+
+def test_igzip_threaded_open_compresslevel_and_reading(tmp_path):
+    test_file = tmp_path / "test.txt.gz"
+    test_file.write_bytes(gzip.compress(b"thisisatest"))
+    with igzip_threaded.open(test_file, compresslevel=5) as f:
+        text = f.read()
+    assert text == b"thisisatest"

tests/test_zlib_compliance.py

@@ -40,10 +40,6 @@
 
 
 class VersionTestCase(unittest.TestCase):
-
-    @unittest.skipIf(os.getenv("PYTHON_ISAL_LINK_DYNAMIC") is not None and
-                     sys.platform.startswith("win"),
-                     "Header file missing on windows")
     def test_library_version(self):
         # Test that the major version of the actual library in use matches the
         # major version that we were compiled against. We can't guarantee that