pax_global_header00006660000000000000000000000064134334465620014524gustar00rootroot0000000000000052 comment=b6853df71aee4b38a9986af8565603a0115e81b7 pyzbar-0.1.8/000077500000000000000000000000001343344656200130415ustar00rootroot00000000000000pyzbar-0.1.8/.coveragerc000066400000000000000000000003161343344656200151620ustar00rootroot00000000000000[run] omit = */site-packages/* [report] # Regexes for lines to exclude from consideration exclude_lines = # Have to re-enable the standard pragma pragma: no cover if __name__ *== *.__main__.: pyzbar-0.1.8/.gitignore000066400000000000000000000001221343344656200150240ustar00rootroot00000000000000*.py[co] *.egg-info/ .DS_Store build dist .tox .coverage htmlcov *dll MANIFEST.in pyzbar-0.1.8/.travis.yml000066400000000000000000000004641343344656200151560ustar00rootroot00000000000000language: - python sudo: - required dist: - xenial python: - "2.7" - "3.4" - "3.5" - "3.6" - "3.7" before_install: - sudo apt-get -qq update - sudo apt-get install -y libzbar0 python-opencv install: - pip install tox-travis coveralls script: - tox after_success: - coveralls pyzbar-0.1.8/CHANGELOG.md000066400000000000000000000007071343344656200146560ustar00rootroot00000000000000### v0.1.8 * #47 Python 3.7 * #31 README badges no longer displaying on PyPI ### v0.1.7 * Fix display of images in README ### v0.1.6 * #19 Improve error messages * #21 Polygons around barcodes ### v0.1.5 * #11 Barcode locations ### v0.1.4 * #9 Python 3.6 ### v0.1.3 * #7 Support older numpy ### v0.1.2 * #5 Better handling of DLLs ### v0.1.1 * #3 Error when decoding ndarray on an image with a single channel ### v0.1.0 * Initial release pyzbar-0.1.8/DEVELOPING.md000066400000000000000000000056231343344656200150250ustar00rootroot00000000000000## Development ``` mkvirtualenv pyzbar pip install -U pip pip install -r requirements.pip nosetests python -m pyzbar.scripts.read_zbar pyzbar/tests/code128.png ``` ### Testing python versions Make a virtual env and install `tox` ``` mkvirtualenv tox pip install tox ``` If you use non-standard locations for your Python builds, make the interpreters available on the `PATH` before running `tox`. ``` PATH=~/local/python-2.7.15/bin:~/local/python-3.4.9/bin:~/local/python-3.5.6/bin:~/local/python-3.6.8/bin:~/local/python-3.7.2/bin:$PATH tox ``` ### Windows Save the 32-bit and 64-bit `zbar.dll` files, and their dependencies, to `libzbar-32.dll` and `libzbar-64.dll` respectively, in the `pyzbar` directory. The `load_zbar` function in `wrapper.py` looks for the appropriate `DLL`s. The appropriate `DLL`s are packaged up into the wheel build and is installed alongside the package source. This strategy allows the same method to be used when `pyzbar` is run from source, as an installed package and when included in a frozen binary. ## Releasing 1. Install tools. ``` pip install wheel ``` 2. Build Create source and wheel builds. The `win32` and `win_amd64` wheels will contain the appropriate `zbar.dll` and its dependencies. ``` rm -rf build dist MANIFEST.in pyzbar.egg-info cp MANIFEST.in.all MANIFEST.in ./setup.py bdist_wheel cat MANIFEST.in.all MANIFEST.in.win32 > MANIFEST.in ./setup.py bdist_wheel --plat-name=win32 # Remove these dirs to prevent win32 DLLs from being included in win64 build rm -rf build pyzbar.egg-info cat MANIFEST.in.all MANIFEST.in.win64 > MANIFEST.in ./setup.py bdist_wheel --plat-name=win_amd64 rm -rf build MANIFEST.in pyzbar.egg-info ``` 3. Release to TestPyPI (see https://packaging.python.org/guides/using-testpypi/) ``` mkvirtualenv pypi pip install twine twine upload -r testpypi dist/* ``` 4. Test the release to TestPyPI * Check https://test.pypi.org/project/pyzbar/ * If you are on Windows ``` set PATH=%PATH%;c:\python35\;c:\python35\scripts \Python35\Scripts\mkvirtualenv.bat --python=c:\python27\python.exe test1 ``` * Install dependencies that are not on testpypi.python.org. If you are on Python 2.x, these are mandatory ``` pip install enum34 pathlib ``` * Pillow for tests and command-line programs. We can't use the `pip install pyzbar[scripts]` form here because `Pillow` will not be on testpypi.python.org ``` pip install Pillow ``` * Install the package itself ``` pip install --index https://testpypi.python.org/simple pyzbar ``` * Test ``` read_zbar --help read_zbar ``` 5. If all is well, release to PyPI ``` twine upload dist/* ``` * Check https://pypi.python.org/pypi/pyzbar/ * Install! ``` pip install pyzbar[scripts] ``` pyzbar-0.1.8/LICENSE.txt000066400000000000000000000021231343344656200146620ustar00rootroot00000000000000MIT License Copyright (c) 2016 The Trustees of the Natural History Museum, London Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. pyzbar-0.1.8/MANIFEST.in.all000066400000000000000000000000331343344656200153420ustar00rootroot00000000000000include pyzbar/tests/*.png pyzbar-0.1.8/MANIFEST.in.win32000066400000000000000000000001341343344656200155360ustar00rootroot00000000000000include pyzbar/zbar-LICENSE.txt include pyzbar/libzbar-32.dll include pyzbar/libiconv-2.dll pyzbar-0.1.8/MANIFEST.in.win64000066400000000000000000000001321343344656200155410ustar00rootroot00000000000000include pyzbar/zbar-LICENSE.txt include pyzbar/libzbar-64.dll include pyzbar/libiconv.dll pyzbar-0.1.8/README.rst000066400000000000000000000155531343344656200145410ustar00rootroot00000000000000pyzbar ====== .. image:: https://img.shields.io/badge/python-2.7%2C%203.4%2C%203.5%2C%203.6%2C%203.7-blue.svg :target: https://github.com/NaturalHistoryMuseum/pyzbar .. image:: https://badge.fury.io/py/pyzbar.svg :target: https://pypi.python.org/pypi/pyzbar .. image:: https://travis-ci.org/NaturalHistoryMuseum/pyzbar.svg?branch=master :target: https://travis-ci.org/NaturalHistoryMuseum/pyzbar .. image:: https://coveralls.io/repos/github/NaturalHistoryMuseum/pyzbar/badge.svg?branch=master :target: https://coveralls.io/github/NaturalHistoryMuseum/pyzbar?branch=master Read one-dimensional barcodes and QR codes from Python 2 and 3 using the `zbar `__ library. - Pure python - Works with PIL / Pillow images, OpenCV / numpy ``ndarray``\ s, and raw bytes - Decodes locations of barcodes - No dependencies, other than the zbar library itself - Tested on Python 2.7, and Python 3.4 to 3.6 The older `zbar `__ package is stuck in Python 2.x-land. The `zbarlight `__ package does not provide support for Windows and depends upon Pillow. Installation ------------ The ``zbar`` ``DLL``\ s are included with the Windows Python wheels. On other operating systems, you will need to install the ``zbar`` shared library. Mac OS X: :: brew install zbar Linux: :: sudo apt-get install libzbar0 Install this Python wrapper; use the second form to install dependencies of the command-line scripts: :: pip install pyzbar pip install pyzbar[scripts] Example usage ------------- The ``decode`` function accepts instances of ``PIL.Image``. :: >>> from pyzbar.pyzbar import decode >>> from PIL import Image >>> decode(Image.open('pyzbar/tests/code128.png')) [ Decoded( data=b'Foramenifera', type='CODE128', rect=Rect(left=37, top=550, width=324, height=76), polygon=[ Point(x=37, y=551), Point(x=37, y=625), Point(x=361, y=626), Point(x=361, y=550) ] ) Decoded( data=b'Rana temporaria', type='CODE128', rect=Rect(left=4, top=0, width=390, height=76), polygon=[ Point(x=4, y=1), Point(x=4, y=75), Point(x=394, y=76), Point(x=394, y=0) ] ) ] It also accepts instances of ``numpy.ndarray``, which might come from loading images using `OpenCV `__. :: >>> import cv2 >>> decode(cv2.imread('pyzbar/tests/code128.png')) [ Decoded( data=b'Foramenifera', type='CODE128', rect=Rect(left=37, top=550, width=324, height=76), polygon=[ Point(x=37, y=551), Point(x=37, y=625), Point(x=361, y=626), Point(x=361, y=550) ] ) Decoded( data=b'Rana temporaria', type='CODE128', rect=Rect(left=4, top=0, width=390, height=76), polygon=[ Point(x=4, y=1), Point(x=4, y=75), Point(x=394, y=76), Point(x=394, y=0) ] ) ] You can also provide a tuple ``(pixels, width, height)``, where the image data is eight bits-per-pixel. :: >>> image = cv2.imread('pyzbar/tests/code128.png') >>> height, width = image.shape[:2] >>> # 8 bpp by considering just the blue channel >>> decode((image[:, :, 0].astype('uint8').tobytes(), width, height)) [ Decoded( data=b'Foramenifera', type='CODE128', rect=Rect(left=37, top=550, width=324, height=76), polygon=[ Point(x=37, y=551), Point(x=37, y=625), Point(x=361, y=626), Point(x=361, y=550) ] ) Decoded( data=b'Rana temporaria', type='CODE128', rect=Rect(left=4, top=0, width=390, height=76), polygon=[ Point(x=4, y=1), Point(x=4, y=75), Point(x=394, y=76), Point(x=394, y=0) ] ) ] >>> # 8 bpp by converting image to greyscale >>> grey = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) >>> decode((grey.tobytes(), width, height)) [ Decoded( data=b'Foramenifera', type='CODE128', rect=Rect(left=37, top=550, width=324, height=76), polygon=[ Point(x=37, y=551), Point(x=37, y=625), Point(x=361, y=626), Point(x=361, y=550) ] ) Decoded( data=b'Rana temporaria', type='CODE128', rect=Rect(left=4, top=0, width=390, height=76), polygon=[ Point(x=4, y=1), Point(x=4, y=75), Point(x=394, y=76), Point(x=394, y=0) ] ) ] >>> # If you don't provide 8 bpp >>> decode((image.tobytes(), width, height)) Traceback (most recent call last): File "", line 1, in File "/Users/lawh/projects/pyzbar/pyzbar/pyzbar.py", line 102, in decode raise PyZbarError('Unsupported bits-per-pixel [{0}]'.format(bpp)) pyzbar.pyzbar_error.PyZbarError: Unsupported bits-per-pixel [24] The default behaviour is to decode all symbol types. You can look for just your symbol types :: >>> from pyzbar.pyzbar import ZBarSymbol >>> # Look for just qrcode >>> decode(Image.open('pyzbar/tests/qrcode.png'), symbols=[ZBarSymbol.QRCODE]) [ Decoded( data=b'Thalassiodracon', type='QRCODE', rect=Rect(left=27, top=27, width=145, height=145), polygon=[ Point(x=27, y=27), Point(x=27, y=172), Point(x=172, y=172), Point(x=172, y=27) ] ) ] >>> # If we look for just code128, the qrcodes in the image will not be detected >>> decode(Image.open('pyzbar/tests/qrcode.png'), symbols=[ZBarSymbol.CODE128]) [] Bounding boxes and polygons --------------------------- The blue and pink boxes show ``rect`` and ``polygon``, respectively, for barcodes in ``pyzbar/tests/qrcode.png`` (see `bounding_box_and_polygon.py `__). .. figure:: https://github.com/NaturalHistoryMuseum/pyzbar/raw/master/bounding_box_and_polygon.png :alt: Two barcodes with bounding boxes and polygons Windows error message --------------------- If you see an ugly ``ImportError`` when importing ``pyzbar`` on Windows you will most likely need the `Visual C++ Redistributable Packages for Visual Studio 2013 `__. Install ``vcredist_x64.exe`` if using 64-bit Python, ``vcredist_x86.exe`` if using 32-bit Python. Contributors ------------ - Alex (@globophobe) - first implementation of barcode locations License ------- ``pyzbar`` is distributed under the MIT license (see ``LICENCE.txt``). 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Taken from # https://codegolf.stackexchange.com/questions/11035/find-the-convex-hull-of-a-set-of-2d-points res = convex_hull([(1, 1), (2, 2), (3, 3), (1, 3)]) self.assertEqual([(1, 1), (1, 3), (3, 3)], res) res = convex_hull([ (4.4, 14), (6.7, 15.25), (6.9, 12.8), (2.1, 11.1), (9.5, 14.9), (13.2, 11.9), (10.3, 12.3), (6.8, 9.5), (3.3, 7.7), (0.6, 5.1), (5.3, 2.4), (8.45, 4.7), (11.5, 9.6), (13.8, 7.3), (12.9, 3.1), (11, 1.1) ]) expected = [ (0.6, 5.1), (2.1, 11.1), (4.4, 14), (6.7, 15.25), (9.5, 14.9), (13.2, 11.9), (13.8, 7.3), (12.9, 3.1), (11, 1.1), (5.3, 2.4) ] self.assertEqual(expected, res) if __name__ == '__main__': unittest.main() pyzbar-0.1.8/pyzbar/tests/test_pyzbar.py000066400000000000000000000142251343344656200204360ustar00rootroot00000000000000import platform import unittest from pathlib import Path try: from unittest.mock import patch except ImportError: # Python 2 from mock import patch import numpy as np from PIL import Image try: import cv2 except ImportError: cv2 = None from pyzbar.pyzbar import ( decode, Decoded, Rect, ZBarSymbol, EXTERNAL_DEPENDENCIES ) from pyzbar.pyzbar_error import PyZbarError TESTDATA = Path(__file__).parent class TestDecode(unittest.TestCase): EXPECTED_CODE128 = [ Decoded( data=b'Foramenifera', type='CODE128', rect=Rect(left=37, top=550, width=324, height=76), polygon=[(37, 551), (37, 625), (361, 626), (361, 550)] ), Decoded( data=b'Rana temporaria', type='CODE128', rect=Rect(left=4, top=0, width=390, height=76), polygon=[(4, 1), (4, 75), (394, 76), (394, 0)] ) ] EXPECTED_QRCODE = [ Decoded( b'Thalassiodracon', type='QRCODE', rect=Rect(left=27, top=27, width=145, height=145), polygon=[(27, 27), (27, 172), (172, 172), (172, 27)] ) ] # Two barcodes, both with same content EXPECTED_QRCODE_ROTATED = [ Decoded( data=b'Thalassiodracon', type='QRCODE', rect=Rect(left=173, top=10, width=205, height=205), polygon=[(173, 113), (276, 215), (378, 113), (276, 10)]), Decoded( data=b'Thalassiodracon', type='QRCODE', rect=Rect(left=32, top=208, width=158, height=158), polygon=[(32, 352), (177, 366), (190, 222), (46, 208)]) ] def setUp(self): self.code128, self.qrcode, self.qrcode_rotated, self.empty = ( Image.open(str(TESTDATA.joinpath(fname))) for fname in ('code128.png', 'qrcode.png', 'qrcode_rotated.png', 'empty.png') ) self.maxDiff = None def tearDown(self): self.code128 = self.empty = self.qrcode = None def test_decode_code128(self): "Read both barcodes in `code128.png`" res = decode(self.code128) self.assertEqual(self.EXPECTED_CODE128, res) def test_decode_qrcode(self): "Read barcode in `qrcode.png`" res = decode(self.qrcode) self.assertEqual(self.EXPECTED_QRCODE, res) def test_decode_qrcode_rotated(self): "Read barcode in `qrcode_rotated.png`" # Test computation of the polygon around the barcode res = decode(self.qrcode_rotated) self.assertEqual(self.EXPECTED_QRCODE_ROTATED, res) def test_symbols(self): "Read only qrcodes in `qrcode.png`" res = decode(self.qrcode, symbols=[ZBarSymbol.QRCODE]) self.assertEqual(self.EXPECTED_QRCODE, res) def test_symbols_not_present(self): "Read only code128 in `qrcode.png`" res = decode(self.qrcode, symbols=[ZBarSymbol.CODE128]) self.assertEqual([], res) def test_decode_tuple(self): "Read barcodes in pixels" pixels = self.code128.copy().convert('L').tobytes() width, height = self.code128.size res = decode((pixels, width, height)) self.assertEqual(self.EXPECTED_CODE128, res) def test_unsupported_bpp(self): pixels = self.code128.tobytes() width, height = self.code128.size self.assertRaises(PyZbarError, decode, (pixels, width, height)) def test_empty(self): "Do not show any output for an image that does not contain a barcode" res = decode(self.empty) self.assertEqual([], res) def test_decode_numpy(self): "Read image using Pillow and convert to numpy.ndarray" res = decode(np.asarray(self.code128)) self.assertEqual(self.EXPECTED_CODE128, res) @unittest.skipIf(cv2 is None, 'OpenCV not installed') def test_decode_opencv(self): "Read image using OpenCV" res = decode(cv2.imread(str(TESTDATA.joinpath('code128.png')))) self.assertEqual(self.EXPECTED_CODE128, res) def test_external_dependencies(self): "External dependencies" if 'Windows' == platform.system(): self.assertEqual(2, len(EXTERNAL_DEPENDENCIES)) self.assertTrue( any('libiconv' in d._name for d in EXTERNAL_DEPENDENCIES) ) self.assertTrue( any('libzbar' in d._name for d in EXTERNAL_DEPENDENCIES) ) @patch('pyzbar.pyzbar.zbar_image_create') def test_zbar_image_create_fail(self, zbar_image_create): zbar_image_create.return_value = None self.assertRaisesRegexp( PyZbarError, 'Could not create zbar image', decode, self.code128 ) zbar_image_create.assert_called_once_with() @patch('pyzbar.pyzbar.zbar_image_scanner_create') def test_zbar_image_scanner_create_fail(self, zbar_image_scanner_create): zbar_image_scanner_create.return_value = None self.assertRaisesRegexp( PyZbarError, 'Could not create image scanner', decode, self.code128 ) zbar_image_scanner_create.assert_called_once_with() @patch('pyzbar.pyzbar.zbar_scan_image') def test_zbar_scan_image_fail(self, zbar_scan_image): zbar_scan_image.return_value = -1 self.assertRaisesRegexp( PyZbarError, 'Unsupported image format', decode, self.code128 ) self.assertEqual(1, zbar_scan_image.call_count) def test_unsupported_bits_per_pixel(self): # 16 bits-per-pixel data = (list(range(3 * 3 * 2)), 3, 3) self.assertRaisesRegexp( PyZbarError, r'Unsupported bits-per-pixel \[16\]. Only \[8\] is supported.', decode, data ) self.assertRaises(PyZbarError, decode, data) def test_inconsistent_dimensions(self): # Ten bytes but width x height indicates nine bytes data = (list(range(10)), 3, 3) self.assertRaisesRegexp( PyZbarError, ( r'Inconsistent dimensions: image data of 10 bytes is not ' r'divisible by \(width x height = 9\)' ), decode, data ) if __name__ == '__main__': unittest.main() pyzbar-0.1.8/pyzbar/tests/test_read_zbar.py000066400000000000000000000024341343344656200210570ustar00rootroot00000000000000import sys import unittest from pathlib import Path from contextlib import contextmanager # TODO Would io.StringIO not work in all cases? try: from cStringIO import StringIO except ImportError: from io import StringIO from pyzbar.scripts.read_zbar import main @contextmanager def capture_stdout(): sys.stdout, old_stdout = StringIO(), sys.stdout try: yield sys.stdout finally: sys.stdout = old_stdout class TestReadZbar(unittest.TestCase): def test_read_qrcode(self): "Read QR code" with capture_stdout() as stdout: main([str(Path(__file__).parent.joinpath('qrcode.png'))]) if 2 == sys.version_info[0]: expected = "Thalassiodracon" else: expected = "b'Thalassiodracon'" self.assertEqual(expected, stdout.getvalue().strip()) def test_read_code128(self): "Read CODE 128 barcodes" with capture_stdout() as stdout: main([str(Path(__file__).parent.joinpath('code128.png'))]) if 2 == sys.version_info[0]: expected = "Foramenifera\nRana temporaria" else: expected = "b'Foramenifera'\nb'Rana temporaria'" self.assertEqual(expected, stdout.getvalue().strip()) if __name__ == '__main__': unittest.main() pyzbar-0.1.8/pyzbar/tests/test_zbar_library.py000066400000000000000000000103751343344656200216130ustar00rootroot00000000000000import unittest from pathlib import Path try: from unittest.mock import call, patch except ImportError: # Python 2 from mock import call, patch from pyzbar import zbar_library class TestLoad(unittest.TestCase): def setUp(self): self.addCleanup(patch.stopall) self.cdll = patch( 'pyzbar.zbar_library.cdll', autospec=True ).start() self.find_library = patch( 'pyzbar.zbar_library.find_library', autospec=True ).start() self.platform = patch( 'pyzbar.zbar_library.platform', autospec=True ).start() self.windows_fnames = patch( 'pyzbar.zbar_library._windows_fnames', autospec=True, return_value=('dll fname', ['dependency fname']) ).start() def test_found_non_windows(self): "zbar loaded ok on non-Windows platform" self.platform.system.return_value = 'Not windows' res = zbar_library.load() self.platform.system.assert_called_once_with() self.find_library.assert_called_once_with('zbar') self.cdll.LoadLibrary.assert_called_once_with( self.find_library.return_value ) self.assertEqual((self.cdll.LoadLibrary.return_value, []), res) self.assertEqual(0, self.windows_fnames.call_count) def test_not_found_non_windows(self): "zbar not found on non-Windows platform" self.platform.system.return_value = 'Not windows' self.find_library.return_value = None self.assertRaises(ImportError, zbar_library.load) self.platform.system.assert_called_once_with() self.find_library.assert_called_once_with('zbar') def test_found_windows(self): "zbar found on Windows" self.platform.system.return_value = 'Windows' res = zbar_library.load() self.platform.system.assert_called_once_with() self.cdll.LoadLibrary.assert_has_calls([ call('dependency fname'), call('dll fname'), ]) self.assertEqual( ( self.cdll.LoadLibrary.return_value, [self.cdll.LoadLibrary.return_value] ), res ) def test_found_second_attempt_windows(self): "zbar found on the second attempt on Windows" self.platform.system.return_value = 'Windows' self.cdll.LoadLibrary.side_effect = [ OSError, # First call does not load dependent DLL 'loaded dependency', # Second call loads dependent DLL 'loaded zbar', # Third call loads dependent DLL ] res = zbar_library.load() self.platform.system.assert_called_once_with() self.cdll.LoadLibrary.assert_has_calls([ call('dependency fname'), call(str(Path(zbar_library.__file__).parent.joinpath( 'dependency fname' ))), call(str(Path(zbar_library.__file__).parent.joinpath( 'dll fname' ))), ]) self.assertEqual(('loaded zbar', ['loaded dependency']), res) def test_not_found_windows(self): "zbar not found on Windows" self.platform.system.return_value = 'Windows' self.cdll.LoadLibrary.side_effect = OSError self.assertRaises(OSError, zbar_library.load) self.platform.system.assert_called_once_with() # Two attempts at loading self.cdll.LoadLibrary.assert_has_calls([ call('dependency fname'), call(str(Path(zbar_library.__file__).parent.joinpath( 'dependency fname' ))), ]) class TestWindowsFnames(unittest.TestCase): def setUp(self): self.addCleanup(patch.stopall) self.sys = patch('pyzbar.zbar_library.sys', autospec=True).start() def test_32bit(self): self.sys.maxsize = 2**32 self.assertEqual( ('libzbar-32.dll', ['libiconv-2.dll']), zbar_library._windows_fnames() ) def test_64bit(self): # This is a 'long' on a 32-bit interpreter self.sys.maxsize = 2**32 + 1 self.assertEqual( ('libzbar-64.dll', ['libiconv.dll']), zbar_library._windows_fnames() ) if __name__ == '__main__': unittest.main() pyzbar-0.1.8/pyzbar/wrapper.py000066400000000000000000000153601343344656200164070ustar00rootroot00000000000000"""Low-level wrapper around zbar's interface """ from ctypes import ( c_ubyte, c_char_p, c_int, c_uint, c_ulong, c_void_p, Structure, CFUNCTYPE, POINTER ) from enum import IntEnum, unique from . import zbar_library __all__ = [ 'EXTERNAL_DEPENDENCIES', 'LIBZBAR', 'ZBarConfig', 'ZBarSymbol', 'zbar_image_create', 'zbar_image_destroy', 'zbar_image_first_symbol', 'zbar_image_scanner_create', 'zbar_image_scanner_destroy', 'zbar_image_scanner_set_config', 'zbar_image_set_data', 'zbar_image_set_format', 'zbar_image_set_size', 'zbar_scan_image', 'zbar_symbol_get_data', 'zbar_symbol_get_loc_size', 'zbar_symbol_get_loc_x', 'zbar_symbol_get_loc_y', 'zbar_symbol_next' ] # Globals populated in load_libzbar LIBZBAR = None """ctypes.CDLL """ EXTERNAL_DEPENDENCIES = [] """List of instances of ctypes.CDLL. Helpful when freezing. """ # Types c_ubyte_p = POINTER(c_ubyte) c_uint_p = POINTER(c_uint) c_ulong_p = POINTER(c_ulong) """unsigned char* type """ # Defines and enums @unique class ZBarSymbol(IntEnum): NONE = 0 # /**< no symbol decoded */ PARTIAL = 1 # /**< intermediate status */ EAN2 = 2 # /**< GS1 2-digit add-on */ EAN5 = 5 # /**< GS1 5-digit add-on */ EAN8 = 8 # /**< EAN-8 */ UPCE = 9 # /**< UPC-E */ ISBN10 = 10 # /**< ISBN-10 (from EAN-13). @since 0.4 */ UPCA = 12 # /**< UPC-A */ EAN13 = 13 # /**< EAN-13 */ ISBN13 = 14 # /**< ISBN-13 (from EAN-13). @since 0.4 */ COMPOSITE = 15 # /**< EAN/UPC composite */ I25 = 25 # /**< Interleaved 2 of 5. @since 0.4 */ DATABAR = 34 # /**< GS1 DataBar (RSS). @since 0.11 */ DATABAR_EXP = 35 # /**< GS1 DataBar Expanded. @since 0.11 */ CODABAR = 38 # /**< Codabar. @since 0.11 */ CODE39 = 39 # /**< Code 39. @since 0.4 */ PDF417 = 57 # /**< PDF417. @since 0.6 */ QRCODE = 64 # /**< QR Code. @since 0.10 */ CODE93 = 93 # /**< Code 93. @since 0.11 */ CODE128 = 128 # /**< Code 128 */ @unique class ZBarConfig(IntEnum): CFG_ENABLE = 0 # /**< enable symbology/feature */ CFG_ADD_CHECK = 1 # /**< enable check digit when optional */ CFG_EMIT_CHECK = 2 # /**< return check digit when present */ CFG_ASCII = 3 # /**< enable full ASCII character set */ CFG_NUM = 4 # /**< number of boolean decoder configs */ CFG_MIN_LEN = 0x20 # /**< minimum data length for valid decode */ CFG_MAX_LEN = 0x21 # /**< maximum data length for valid decode */ CFG_UNCERTAINTY = 0x40 # /**< required video consistency frames */ CFG_POSITION = 0x80 # /**< enable scanner to collect position data */ CFG_X_DENSITY = 0x100 # /**< image scanner vertical scan density */ CFG_Y_DENSITY = 0x101 # /**< image scanner horizontal scan density */ # Structs class zbar_image_scanner(Structure): """Opaque C++ class with private implementation """ pass class zbar_image(Structure): """Opaque C++ class with private implementation """ pass class zbar_symbol(Structure): """Opaque C++ class with private implementation The first item in the structure is an integeger value in the ZBarSymbol enumeration. """ _fields_ = [ ('type', c_int), ] def load_libzbar(): """Loads the zbar shared library and its dependencies. Populates the globals LIBZBAR and EXTERNAL_DEPENDENCIES. """ global LIBZBAR global EXTERNAL_DEPENDENCIES if not LIBZBAR: libzbar, dependencies = zbar_library.load() LIBZBAR = libzbar EXTERNAL_DEPENDENCIES = [LIBZBAR] + dependencies return LIBZBAR # Function signatures def zbar_function(fname, restype, *args): """Returns a foreign function exported by `zbar`. Args: fname (:obj:`str`): Name of the exported function as string. restype (:obj:): Return type - one of the `ctypes` primitive C data types. *args: Arguments - a sequence of `ctypes` primitive C data types. Returns: cddl.CFunctionType: A wrapper around the function. """ prototype = CFUNCTYPE(restype, *args) return prototype((fname, load_libzbar())) zbar_version = zbar_function( 'zbar_version', c_int, c_uint_p, # major, c_uint_p, # minor ) zbar_set_verbosity = zbar_function( 'zbar_set_verbosity', None, c_int ) zbar_image_scanner_create = zbar_function( 'zbar_image_scanner_create', POINTER(zbar_image_scanner) ) zbar_image_scanner_destroy = zbar_function( 'zbar_image_scanner_destroy', None, POINTER(zbar_image_scanner) ) zbar_parse_config = zbar_function( 'zbar_parse_config', c_int, c_char_p, # config_string, POINTER(c_int), # symbology - values in ZBarSymbol POINTER(c_int), # config - values in ZBarConfig POINTER(c_int), # value ) zbar_image_scanner_set_config = zbar_function( 'zbar_image_scanner_set_config', c_int, POINTER(zbar_image_scanner), # scanner c_int, # symbology - values in ZBarSymbol c_int, # config - values in ZBarConfig c_int # value ) zbar_image_create = zbar_function( 'zbar_image_create', POINTER(zbar_image) ) zbar_image_destroy = zbar_function( 'zbar_image_destroy', None, POINTER(zbar_image) ) zbar_image_set_format = zbar_function( 'zbar_image_set_format', None, POINTER(zbar_image), c_uint ) zbar_image_set_size = zbar_function( 'zbar_image_set_size', None, POINTER(zbar_image), c_uint, # width c_uint # height ) zbar_image_set_data = zbar_function( 'zbar_image_set_data', None, POINTER(zbar_image), c_void_p, # data c_ulong, # raw_image_data_length c_void_p # A function pointer(!) ) zbar_scan_image = zbar_function( 'zbar_scan_image', c_int, POINTER(zbar_image_scanner), POINTER(zbar_image) ) zbar_image_first_symbol = zbar_function( 'zbar_image_first_symbol', POINTER(zbar_symbol), POINTER(zbar_image) ) zbar_symbol_get_data_length = zbar_function( 'zbar_symbol_get_data_length', c_uint, POINTER(zbar_symbol) ) zbar_symbol_get_data = zbar_function( 'zbar_symbol_get_data', c_char_p, POINTER(zbar_symbol) ) zbar_symbol_get_loc_size = zbar_function( 'zbar_symbol_get_loc_size', c_uint, POINTER(zbar_symbol) ) zbar_symbol_get_loc_x = zbar_function( 'zbar_symbol_get_loc_x', c_int, POINTER(zbar_symbol), c_uint ) zbar_symbol_get_loc_y = zbar_function( 'zbar_symbol_get_loc_y', c_int, POINTER(zbar_symbol), c_uint ) zbar_symbol_next = zbar_function( 'zbar_symbol_next', POINTER(zbar_symbol), POINTER(zbar_symbol) ) pyzbar-0.1.8/pyzbar/zbar-LICENSE.txt000066400000000000000000000635741343344656200171460ustar00rootroot00000000000000GNU LESSER GENERAL PUBLIC LICENSE Version 2.1, February 1999 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 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To apply these terms, attach the following notices to the library. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. zbar (forked from download https://pypi.python.org/pypi/zbar/0.10) Copyright (C) 2013 Nate Pinchot This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Also add information on how to contact you by electronic and paper mail. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the library, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the library `Frob' (a library for tweaking knobs) written by James Random Hacker. {signature of Ty Coon}, 1 April 1990 Ty Coon, President of Vice That's all there is to it! pyzbar-0.1.8/pyzbar/zbar_library.py000066400000000000000000000042661343344656200174140ustar00rootroot00000000000000"""Loads zbar and its dependencies. """ import platform import sys from ctypes import cdll from ctypes.util import find_library from pathlib import Path __all__ = ['load'] def _windows_fnames(): """For convenience during development and to aid debugging, the DLL names are specific to the bit depth of interpreter. This logic has its own function to make testing easier """ # 'libzbar-64.dll' and 'libzbar-32.dll' each have a dependent DLL - # 'libiconv.dll' and 'libiconv-2.dll' respectively. if sys.maxsize > 2**32: # 64-bit fname = 'libzbar-64.dll' dependencies = ['libiconv.dll'] else: # 32-bit fname = 'libzbar-32.dll' dependencies = ['libiconv-2.dll'] return fname, dependencies def load(): """Loads the libzar shared library and its dependencies. """ if 'Windows' == platform.system(): # Possible scenarios here # 1. Run from source, DLLs are in pyzbar directory # cdll.LoadLibrary() imports DLLs in repo root directory # 2. Wheel install into CPython installation # cdll.LoadLibrary() imports DLLs in package directory # 3. Wheel install into virtualenv # cdll.LoadLibrary() imports DLLs in package directory # 4. Frozen # cdll.LoadLibrary() imports DLLs alongside executable fname, dependencies = _windows_fnames() def load_objects(directory): # Load dependencies before loading libzbar dll deps = [ cdll.LoadLibrary(str(directory.joinpath(dep))) for dep in dependencies ] libzbar = cdll.LoadLibrary(str(directory.joinpath(fname))) return deps, libzbar try: dependencies, libzbar = load_objects(Path('')) except OSError: dependencies, libzbar = load_objects(Path(__file__).parent) else: # Assume a shared library on the path path = find_library('zbar') if not path: raise ImportError('Unable to find zbar shared library') libzbar = cdll.LoadLibrary(path) dependencies = [] return libzbar, dependencies pyzbar-0.1.8/requirements.pip000066400000000000000000000003661343344656200163030ustar00rootroot00000000000000enum34==1.1.6; python_version == '2.7' # Packages required for testing # TODO How to specify OpenCV? 'cv2>=2.4.8' coveralls>=1.1 mock>=2.0.0; python_version == '2.7' nose>=1.3.4 numpy>=1.8.2 pathlib>=1.0.1; python_version == '2.7' Pillow>=3.2.0 pyzbar-0.1.8/setup.cfg000066400000000000000000000000321343344656200146550ustar00rootroot00000000000000[bdist_wheel] universal=1 pyzbar-0.1.8/setup.py000077500000000000000000000041231343344656200145560ustar00rootroot00000000000000#!/usr/bin/env python import sys import pyzbar SCRIPTS = ['read_zbar'] # Optional dependency PILLOW = 'Pillow>=3.2.0' URL = 'https://github.com/NaturalHistoryMuseum/pyzbar/' def readme(): # TODO IOError on Python 2.x. FileNotFoundError on Python 3.x. try: with open('README.rst') as f: return f.read() except: return 'Visit {0} for more details.'.format(URL) setup_data = { 'name': 'pyzbar', 'version': pyzbar.__version__, 'author': 'Lawrence Hudson', 'author_email': 'quicklizard@googlemail.com', 'url': URL, 'license': 'MIT', 'description': pyzbar.__doc__, 'long_description': readme(), 'long_description_content_type': 'text/x-rst', 'packages': ['pyzbar', 'pyzbar.scripts', 'pyzbar.tests'], 'test_suite': 'pyzbar.tests', 'scripts': ['pyzbar/scripts/{0}.py'.format(script) for script in SCRIPTS], 'entry_points': { 'console_scripts': [ '{0}=pyzbar.scripts.{0}:main'.format(script) for script in SCRIPTS ], }, 'extras_require': { ':python_version=="2.7"': ['enum34>=1.1.6', 'pathlib>=1.0.1'], 'scripts': [ PILLOW, ], }, 'tests_require': [ # TODO How to specify OpenCV? 'cv2>=2.4.8', 'mock>=2.0.0; python_version=="2.7"', 'numpy>=1.8.2', PILLOW, ], 'include_package_data': True, 'classifiers': [ 'Development Status :: 4 - Beta', 'License :: OSI Approved :: MIT License', 'Topic :: Utilities', 'Programming Language :: Python :: 2', 'Programming Language :: Python :: 2.7', 'Programming Language :: Python :: 3', 'Programming Language :: Python :: 3.4', 'Programming Language :: Python :: 3.5', 'Programming Language :: Python :: 3.6', 'Programming Language :: Python :: 3.7', ], } def setuptools_setup(): from setuptools import setup setup(**setup_data) if (2, 7) == sys.version_info[:2] or (3, 4) <= sys.version_info: setuptools_setup() else: sys.exit('Python versions 2.7 and >= 3.4 are supported') pyzbar-0.1.8/tox.ini000066400000000000000000000005311343344656200143530ustar00rootroot00000000000000[tox] envlist = py27,py34,py35,py36,py37 [testenv] sitepackages = True deps = -rrequirements.pip # Do not call nosetests here - it may will run the-system wide nosetests, which # will be unaware of the created virtual environment commands = python -m nose --verbose --with-coverage --cover-inclusive --cover-tests --cover-package=pyzbar pyzbar