9.4.0: pytest is failing in Tests/test_imagegrab.py::TestImageGrab::test_grabclipboard unit

[kloczek]

I'm packaging your module as an rpm package so I'm using the typical PEP517 based build, install and test cycle used on building packages from non-root account.

• python3 -sBm build -w --no-isolation
• because I'm calling build with --no-isolation I'm using during all processes only locally installed modules
• install .whl file in </install/prefix>
• run pytest with $PYTHONPATH pointing to sitearch and sitelib inside </install/prefix>
• build is performed in env which is cut off from access to the public network (pytest is executed with -m "not network")

Here is pytest output:

+ PYTHONPATH=/home/tkloczko/rpmbuild/BUILDROOT/python-pillow-9.4.0-2.fc35.x86_64/usr/lib64/python3.8/site-packages:/home/tkloczko/rpmbuild/BUILDROOT/python-pillow-9.4.0-2.fc35.x86_64/usr/lib/python3.8/site-packages
+ /usr/bin/pytest -ra -m 'not network' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/1.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/binary_preview_map.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/illu10_no_preview.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/illu10_preview.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/illuCS6_no_preview.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/illuCS6_preview.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/non_zero_bb.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/pil_sample_cmyk.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/reqd_showpage.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/zero_bb_emptyline.eps]' --deselect 'Tests/oss-fuzz/test_fuzzers.py::test_fuzz_images[Tests/images/zero_bb.eps]' --deselect Tests/test_features.py::test_version --deselect Tests/test_file_eps.py::test_bytesio_object --deselect Tests/test_file_eps.py::test_cmyk --deselect Tests/test_file_eps.py::test_emptyline --deselect Tests/test_file_eps.py::test_file_object --deselect Tests/test_file_eps.py::test_iobase_object --deselect Tests/test_file_eps.py::test_load --deselect Tests/test_file_eps.py::test_render_scale1 --deselect Tests/test_file_eps.py::test_render_scale2 --deselect Tests/test_file_eps.py::test_resize --deselect Tests/test_file_eps.py::test_sanity --deselect Tests/test_file_eps.py::test_showpage --deselect Tests/test_file_eps.py::test_thumbnail --deselect Tests/test_file_eps.py::test_transparency --deselect Tests/test_file_png.py::TestFilePng::test_sanity --deselect Tests/test_imagefile.py::TestImageFile::test_parser
==================================================================================== test session starts ====================================================================================
platform linux -- Python 3.8.16, pytest-7.2.0, pluggy-1.0.0
rootdir: /home/tkloczko/rpmbuild/BUILD/Pillow-9.4.0, configfile: setup.cfg, testpaths: Tests
plugins: timeout-2.1.0
collected 3973 items / 29 deselected / 1 skipped / 3944 selected

Tests/test_000_sanity.py .                                                                                                                                                            [  0%]
Tests/test_binary.py ...                                                                                                                                                              [  0%]
Tests/test_bmp_reference.py ...                                                                                                                                                       [  0%]
Tests/test_box_blur.py ..............                                                                                                                                                 [  0%]
Tests/test_color_lut.py ..........................                                                                                                                                    [  1%]
Tests/test_core_resources.py ..............                                                                                                                                           [  1%]
Tests/test_decompression_bomb.py ..........                                                                                                                                           [  1%]
Tests/test_deprecate.py ..........                                                                                                                                                    [  2%]
Tests/test_deprecated_imageqt.py .                                                                                                                                                    [  2%]
Tests/test_features.py ....................                                                                                                                                           [  2%]
Tests/test_file_apng.py ................................                                                                                                                              [  3%]
Tests/test_file_blp.py .............                                                                                                                                                  [  3%]
Tests/test_file_bmp.py ..................                                                                                                                                             [  4%]
Tests/test_file_bufrstub.py .....                                                                                                                                                     [  4%]
Tests/test_file_container.py ...............                                                                                                                                          [  4%]
Tests/test_file_cur.py ..                                                                                                                                                             [  4%]
Tests/test_file_dcx.py .........                                                                                                                                                      [  4%]
Tests/test_file_dds.py ................................                                                                                                                               [  5%]
Tests/test_file_eps.py ..........                                                                                                                                                     [  6%]
Tests/test_file_fits.py .....                                                                                                                                                         [  6%]
Tests/test_file_fli.py ...............                                                                                                                                                [  6%]
Tests/test_file_fpx.py ...                                                                                                                                                            [  6%]
Tests/test_file_ftex.py ....                                                                                                                                                          [  6%]
Tests/test_file_gbr.py ....                                                                                                                                                           [  6%]
Tests/test_file_gd.py ...                                                                                                                                                             [  6%]
Tests/test_file_gif.py ......................ss............................................................                                                                           [  9%]
Tests/test_file_gimpgradient.py ..........                                                                                                                                            [  9%]
Tests/test_file_gimppalette.py ..                                                                                                                                                     [  9%]
Tests/test_file_gribstub.py .....                                                                                                                                                     [  9%]
Tests/test_file_hdf5stub.py .....                                                                                                                                                     [  9%]
Tests/test_file_icns.py ...........                                                                                                                                                   [  9%]
Tests/test_file_ico.py ....................                                                                                                                                           [ 10%]
Tests/test_file_im.py ...............                                                                                                                                                 [ 10%]
Tests/test_file_imt.py ....                                                                                                                                                           [ 10%]
Tests/test_file_iptc.py .....                                                                                                                                                         [ 10%]
Tests/test_file_jpeg.py ....................................................ss.................................s                                                                      [ 13%]
Tests/test_file_jpeg2k.py ............................................ssss....                                                                                                        [ 14%]
Tests/test_file_libtiff.py ......................................................s.............................                                                                       [ 16%]
Tests/test_file_libtiff_small.py ...                                                                                                                                                  [ 16%]
Tests/test_file_mcidas.py ..                                                                                                                                                          [ 16%]
Tests/test_file_mic.py ......                                                                                                                                                         [ 16%]
Tests/test_file_mpo.py .............................                                                                                                                                  [ 17%]
Tests/test_file_msp.py ....ss.                                                                                                                                                        [ 17%]
Tests/test_file_palm.py .X..                                                                                                                                                          [ 17%]
Tests/test_file_pcd.py .                                                                                                                                                              [ 17%]
Tests/test_file_pcx.py ................                                                                                                                                               [ 18%]
Tests/test_file_pdf.py ................                                                                                                                                               [ 18%]
Tests/test_file_pixar.py ..                                                                                                                                                           [ 18%]
Tests/test_file_png.py .........................................................                                                                                                      [ 20%]
Tests/test_file_ppm.py .....................................                                                                                                                          [ 21%]
Tests/test_file_psd.py ..................                                                                                                                                             [ 21%]
Tests/test_file_sgi.py ..........                                                                                                                                                     [ 21%]
Tests/test_file_spider.py ................                                                                                                                                            [ 22%]
Tests/test_file_sun.py ..s                                                                                                                                                            [ 22%]
Tests/test_file_tar.py ....                                                                                                                                                           [ 22%]
Tests/test_file_tga.py ..................                                                                                                                                             [ 22%]
Tests/test_file_tiff.py ..............................................................................s..s                                                                            [ 25%]
Tests/test_file_tiff_metadata.py ........................                                                                                                                             [ 25%]
Tests/test_file_wal.py ..                                                                                                                                                             [ 25%]
Tests/test_file_webp.py ....................                                                                                                                                          [ 26%]
Tests/test_file_webp_alpha.py .....                                                                                                                                                   [ 26%]
Tests/test_file_webp_animated.py ......                                                                                                                                               [ 26%]
Tests/test_file_webp_lossless.py .                                                                                                                                                    [ 26%]
Tests/test_file_webp_metadata.py ........                                                                                                                                             [ 26%]
Tests/test_file_wmf.py .......                                                                                                                                                        [ 26%]
Tests/test_file_xbm.py ......                                                                                                                                                         [ 27%]
Tests/test_file_xpm.py ...                                                                                                                                                            [ 27%]
Tests/test_file_xvthumb.py ...                                                                                                                                                        [ 27%]
Tests/test_font_bdf.py ..                                                                                                                                                             [ 27%]
Tests/test_font_crash.py .                                                                                                                                                            [ 27%]
Tests/test_font_leaks.py ..                                                                                                                                                           [ 27%]
Tests/test_font_pcf.py ......                                                                                                                                                         [ 27%]
Tests/test_font_pcf_charsets.py .........                                                                                                                                             [ 27%]
Tests/test_format_hsv.py ....                                                                                                                                                         [ 27%]
Tests/test_format_lab.py ...                                                                                                                                                          [ 27%]
Tests/test_image.py ............................................................................................................                                                      [ 30%]
Tests/test_image_access.py ......................................................................s                                                                                    [ 32%]
Tests/test_image_array.py ...                                                                                                                                                         [ 32%]
Tests/test_image_convert.py ..............................                                                                                                                            [ 33%]
Tests/test_image_copy.py .......                                                                                                                                                      [ 33%]
Tests/test_image_crop.py .............                                                                                                                                                [ 33%]
Tests/test_image_draft.py ...                                                                                                                                                         [ 33%]
Tests/test_image_entropy.py .                                                                                                                                                         [ 33%]
Tests/test_image_filter.py ......................................................................................                                                                     [ 36%]
Tests/test_image_frombytes.py .                                                                                                                                                       [ 36%]
Tests/test_image_fromqimage.py sssss                                                                                                                                                  [ 36%]
Tests/test_image_getbands.py .                                                                                                                                                        [ 36%]
Tests/test_image_getbbox.py ..                                                                                                                                                        [ 36%]
Tests/test_image_getcolors.py ..                                                                                                                                                      [ 36%]
Tests/test_image_getdata.py ..                                                                                                                                                        [ 36%]
Tests/test_image_getextrema.py ..                                                                                                                                                     [ 36%]
Tests/test_image_getim.py .                                                                                                                                                           [ 36%]
Tests/test_image_getpalette.py ..                                                                                                                                                     [ 36%]
Tests/test_image_getprojection.py .                                                                                                                                                   [ 36%]
Tests/test_image_histogram.py .                                                                                                                                                       [ 36%]
Tests/test_image_load.py .....                                                                                                                                                        [ 36%]
Tests/test_image_mode.py ..                                                                                                                                                           [ 36%]
Tests/test_image_paste.py ..................................                                                                                                                          [ 37%]
Tests/test_image_point.py .....                                                                                                                                                       [ 37%]
Tests/test_image_putalpha.py ...                                                                                                                                                      [ 37%]
Tests/test_image_putdata.py ............                                                                                                                                              [ 38%]
Tests/test_image_putpalette.py .....                                                                                                                                                  [ 38%]
Tests/test_image_quantize.py ...............                                                                                                                                          [ 38%]
Tests/test_image_reduce.py .......................................................................................................................................................... [ 42%]
.......................................................                                                                                                                               [ 43%]
Tests/test_image_resample.py ...............................................xx...................................                                                                     [ 46%]
Tests/test_image_resize.py .............................................................................                                                                              [ 47%]
Tests/test_image_rotate.py ..........................                                                                                                                                 [ 48%]
Tests/test_image_split.py ...........                                                                                                                                                 [ 48%]
Tests/test_image_thumbnail.py ..........                                                                                                                                              [ 49%]
Tests/test_image_tobitmap.py .                                                                                                                                                        [ 49%]
Tests/test_image_tobytes.py .                                                                                                                                                         [ 49%]
Tests/test_image_transform.py ...........................................................................                                                                             [ 51%]
Tests/test_image_transpose.py ........................................                                                                                                                [ 52%]
Tests/test_imagechops.py ..............................                                                                                                                               [ 52%]
Tests/test_imagecms.py ...............................                                                                                                                                [ 53%]
Tests/test_imagecolor.py .....                                                                                                                                                        [ 53%]
Tests/test_imagedraw.py ......................................................................................s..................................                                     [ 56%]
Tests/test_imagedraw2.py ................                                                                                                                                             [ 57%]
Tests/test_imageenhance.py ......                                                                                                                                                     [ 57%]
Tests/test_imagefile.py ........................                                                                                                                                      [ 58%]
Tests/test_imagefont.py .......................................................................................s..................................................................... [ 62%]
..................s.............                                                                                                                                                      [ 62%]
Tests/test_imagefontctl.py ......................................ss........................................                                                                           [ 64%]
Tests/test_imagegrab.py sss.Fss                                                                                                                                                       [ 65%]
Tests/test_imagemath.py .........................                                                                                                                                     [ 65%]
Tests/test_imagemorph.py .......................                                                                                                                                      [ 66%]
Tests/test_imageops.py ............................                                                                                                                                   [ 66%]
Tests/test_imageops_usm.py .....                                                                                                                                                      [ 67%]
Tests/test_imagepalette.py ...............                                                                                                                                            [ 67%]
Tests/test_imagepath.py .............                                                                                                                                                 [ 67%]
Tests/test_imageqt.py sss                                                                                                                                                             [ 67%]
Tests/test_imagesequence.py ........                                                                                                                                                  [ 68%]
Tests/test_imageshow.py ....sssss...ss                                                                                                                                                [ 68%]
Tests/test_imagestat.py ...                                                                                                                                                           [ 68%]
Tests/test_imagetk.py ssssssssssssss                                                                                                                                                  [ 68%]
Tests/test_imagewin.py ...sssss                                                                                                                                                       [ 69%]
Tests/test_lib_image.py .                                                                                                                                                             [ 69%]
Tests/test_lib_pack.py ....................................                                                                                                                           [ 70%]
Tests/test_locale.py .                                                                                                                                                                [ 70%]
Tests/test_main.py .                                                                                                                                                                  [ 70%]
Tests/test_map.py ...                                                                                                                                                                 [ 70%]
Tests/test_mode_i16.py .......                                                                                                                                                        [ 70%]
Tests/test_numpy.py ...................................                                                                                                                               [ 71%]
Tests/test_pdfparser.py ....                                                                                                                                                          [ 71%]
Tests/test_pickle.py ............................................................................................                                                                     [ 73%]
Tests/test_psdraw.py ...                                                                                                                                                              [ 73%]
Tests/test_qt_image_qapplication.py s                                                                                                                                                 [ 73%]
Tests/test_qt_image_toqimage.py sssss                                                                                                                                                 [ 73%]
Tests/test_sgi_crash.py ...........                                                                                                                                                   [ 74%]
Tests/test_shell_injection.py ssss                                                                                                                                                    [ 74%]
Tests/test_tiff_crashes.py ss...........s.                                                                                                                                            [ 74%]
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========================================================================================= FAILURES ==========================================================================================
_____________________________________________________________________________ TestImageGrab.test_grabclipboard ______________________________________________________________________________

self = <Tests.test_imagegrab.TestImageGrab object at 0x7f4c52ce76a0>

        def test_grabclipboard(self):
            if sys.platform == "darwin":
                subprocess.call(["screencapture", "-cx"])
            elif sys.platform == "win32":
                p = subprocess.Popen(["powershell", "-command", "-"], stdin=subprocess.PIPE)
                p.stdin.write(
                    b"""[Reflection.Assembly]::LoadWithPartialName("System.Drawing")
    [Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
    $bmp = New-Object Drawing.Bitmap 200, 200
    [Windows.Forms.Clipboard]::SetImage($bmp)"""
                )
                p.communicate()
            else:
                if not shutil.which("wl-paste"):
                    with pytest.raises(
                        NotImplementedError,
                        match="wl-paste or xclip is required for"
                        r" ImageGrab.grabclipboard\(\) on Linux",
                    ):
>                       ImageGrab.grabclipboard()

Tests/test_imagegrab.py:73:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
../../BUILDROOT/python-pillow-9.4.0-2.fc35.x86_64/usr/lib64/python3.8/site-packages/PIL/ImageGrab.py:146: in grabclipboard
    im = Image.open(filepath)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

fp = <_io.BufferedReader name='/tmp/tmp_zvn5co0'>, mode = 'r', formats = ['PNG', 'BLP', 'BMP', 'DIB', 'BUFR', 'CUR', ...]

    def open(fp, mode="r", formats=None):
        """
        Opens and identifies the given image file.

        This is a lazy operation; this function identifies the file, but
        the file remains open and the actual image data is not read from
        the file until you try to process the data (or call the
        :py:meth:`~PIL.Image.Image.load` method).  See
        :py:func:`~PIL.Image.new`. See :ref:`file-handling`.

        :param fp: A filename (string), pathlib.Path object or a file object.
           The file object must implement ``file.read``,
           ``file.seek``, and ``file.tell`` methods,
           and be opened in binary mode.
        :param mode: The mode.  If given, this argument must be "r".
        :param formats: A list or tuple of formats to attempt to load the file in.
           This can be used to restrict the set of formats checked.
           Pass ``None`` to try all supported formats. You can print the set of
           available formats by running ``python3 -m PIL`` or using
           the :py:func:`PIL.features.pilinfo` function.
        :returns: An :py:class:`~PIL.Image.Image` object.
        :exception FileNotFoundError: If the file cannot be found.
        :exception PIL.UnidentifiedImageError: If the image cannot be opened and
           identified.
        :exception ValueError: If the ``mode`` is not "r", or if a ``StringIO``
           instance is used for ``fp``.
        :exception TypeError: If ``formats`` is not ``None``, a list or a tuple.
        """

        if mode != "r":
            msg = f"bad mode {repr(mode)}"
            raise ValueError(msg)
        elif isinstance(fp, io.StringIO):
            msg = (
                "StringIO cannot be used to open an image. "
                "Binary data must be used instead."
            )
            raise ValueError(msg)

        if formats is None:
            formats = ID
        elif not isinstance(formats, (list, tuple)):
            msg = "formats must be a list or tuple"
            raise TypeError(msg)

        exclusive_fp = False
        filename = ""
        if isinstance(fp, Path):
            filename = str(fp.resolve())
        elif is_path(fp):
            filename = fp

        if filename:
            fp = builtins.open(filename, "rb")
            exclusive_fp = True

        try:
            fp.seek(0)
        except (AttributeError, io.UnsupportedOperation):
            fp = io.BytesIO(fp.read())
            exclusive_fp = True

        prefix = fp.read(16)

        preinit()

        accept_warnings = []

        def _open_core(fp, filename, prefix, formats):
            for i in formats:
                i = i.upper()
                if i not in OPEN:
                    init()
                try:
                    factory, accept = OPEN[i]
                    result = not accept or accept(prefix)
                    if type(result) in [str, bytes]:
                        accept_warnings.append(result)
                    elif result:
                        fp.seek(0)
                        im = factory(fp, filename)
                        _decompression_bomb_check(im.size)
                        return im
                except (SyntaxError, IndexError, TypeError, struct.error):
                    # Leave disabled by default, spams the logs with image
                    # opening failures that are entirely expected.
                    # logger.debug("", exc_info=True)
                    continue
                except BaseException:
                    if exclusive_fp:
                        fp.close()
                    raise
            return None

        im = _open_core(fp, filename, prefix, formats)

        if im is None:
            if init():
                im = _open_core(fp, filename, prefix, formats)

        if im:
            im._exclusive_fp = exclusive_fp
            return im

        if exclusive_fp:
            fp.close()
        for message in accept_warnings:
            warnings.warn(message)
        msg = "cannot identify image file %r" % (filename if filename else fp)
>       raise UnidentifiedImageError(msg)
E       PIL.UnidentifiedImageError: cannot identify image file '/tmp/tmp_zvn5co0'

../../BUILDROOT/python-pillow-9.4.0-2.fc35.x86_64/usr/lib64/python3.8/site-packages/PIL/Image.py:3283: UnidentifiedImageError
----------------------------------------------------------------------------------- Captured stderr call ------------------------------------------------------------------------------------
xclip: Error: Can't open display: (null)
================================================================================== short test summary info ==================================================================================
SKIPPED [1] Tests/test_pyroma.py:5: Pyroma not installed
SKIPPED [1] Tests/test_file_gif.py:337: Netpbm not available
SKIPPED [1] Tests/test_file_gif.py:348: Netpbm not available
SKIPPED [1] Tests/test_file_jpeg.py:644: djpeg not available
SKIPPED [1] Tests/test_file_jpeg.py:650: cjpeg not available
SKIPPED [1] Tests/test_file_jpeg.py:945: Windows only
SKIPPED [4] Tests/test_file_jpeg2k.py:337: Extra image files not installed
SKIPPED [1] Tests/test_file_libtiff.py:840: LZMA compression support is not configured
SKIPPED [1] Tests/test_file_msp.py:58: Extra image files not installed
SKIPPED [1] Tests/test_file_msp.py:72: Even More Extra image files not installed
SKIPPED [1] Tests/test_file_sun.py:35: Extra image files not installed
SKIPPED [1] Tests/test_file_tiff.py:840: Extra image files not installed
SKIPPED [1] Tests/test_file_tiff.py:877: Windows only
SKIPPED [1] Tests/test_image_access.py:408: requires Windows
SKIPPED [1] Tests/test_image_fromqimage.py:44: Qt bindings are not installed
SKIPPED [1] Tests/test_image_fromqimage.py:49: Qt bindings are not installed
SKIPPED [1] Tests/test_image_fromqimage.py:54: Qt bindings are not installed
SKIPPED [1] Tests/test_image_fromqimage.py:59: Qt bindings are not installed
SKIPPED [1] Tests/test_image_fromqimage.py:64: Qt bindings are not installed
SKIPPED [1] Tests/test_imagedraw.py:970: failing
SKIPPED [2] Tests/test_imagefont.py:1077: FreeType compiled without brotli or WOFF2 support
SKIPPED [2] Tests/test_imagefontctl.py:233: fails with this font
SKIPPED [1] Tests/test_imagegrab.py:14: requires Windows or macOS
SKIPPED [1] Tests/test_imagegrab.py:33: X connection failed: error 5
SKIPPED [1] Tests/test_imagegrab.py:35: tests missing XCB
SKIPPED [1] Tests/test_imagegrab.py:78: Windows only
SKIPPED [1] Tests/test_imagegrab.py:88: Windows only
SKIPPED [1] Tests/test_imageqt.py:20: Qt bindings are not installed
SKIPPED [1] Tests/test_imageqt.py:49: Qt bindings are not installed
SKIPPED [1] Tests/test_imageqt.py:63: Qt bindings are not installed
SKIPPED [5] Tests/test_imageshow.py:44: Only run on CIs; hangs on Windows CIs
SKIPPED [1] Tests/test_imageshow.py:82: IPython not installed
SKIPPED [1] Tests/test_imageshow.py:94: Only run on CIs; hangs on Windows CIs
SKIPPED [14] Tests/test_imagetk.py:32: TCL Error: no display name and no $DISPLAY environment variable
SKIPPED [1] Tests/test_imagewin.py:37: Windows only
SKIPPED [1] Tests/test_imagewin.py:47: Windows only
SKIPPED [1] Tests/test_imagewin.py:58: Windows only
SKIPPED [1] Tests/test_imagewin.py:72: Windows only
SKIPPED [1] Tests/test_imagewin.py:87: Windows only
SKIPPED [1] Tests/test_qt_image_qapplication.py:54: Qt bindings are not installed
SKIPPED [5] Tests/test_qt_image_toqimage.py:19: Qt bindings are not installed
SKIPPED [1] Tests/test_shell_injection.py:25: djpeg not available
SKIPPED [1] Tests/test_shell_injection.py:34: cjpeg not available
SKIPPED [1] Tests/test_shell_injection.py:39: Netpbm not available
SKIPPED [1] Tests/test_shell_injection.py:45: Netpbm not available
SKIPPED [3] Tests/test_tiff_crashes.py:50: test image not found
XFAIL Tests/test_image_resample.py::TestCoreResampleAlphaCorrect::test_levels_rgba - Current implementation isn't precise enough
XFAIL Tests/test_image_resample.py::TestCoreResampleAlphaCorrect::test_levels_la - Current implementation isn't precise enough
XPASS Tests/test_file_palm.py::test_p_mode Palm P image is wrong
FAILED Tests/test_imagegrab.py::TestImageGrab::test_grabclipboard - PIL.UnidentifiedImageError: cannot identify image file '/tmp/tmp_zvn5co0'
================================================ 1 failed, 3867 passed, 74 skipped, 29 deselected, 2 xfailed, 1 xpassed in 192.74s (0:03:12) ================================================

Here is list of installed modules in build env

Package                       Version
----------------------------- -----------------
alabaster                     0.7.12
asn1crypto                    1.5.1
attrs                         22.2.0
Babel                         2.11.0
bcrypt                        3.2.2
build                         0.9.0
cffi                          1.15.1
charset-normalizer            3.0.1
contourpy                     1.0.6
cryptography                  38.0.4
cycler                        0.11.0
distro                        1.8.0
docutils                      0.19
exceptiongroup                1.0.0
extras                        1.0.0
fixtures                      4.0.0
fonttools                     4.38.0
gpg                           1.18.0-unknown
idna                          3.4
imagesize                     1.4.1
importlib-metadata            5.1.0
iniconfig                     1.1.1
Jinja2                        3.1.2
kiwisolver                    1.4.4
libcomps                      0.1.19
MarkupSafe                    2.1.1
matplotlib                    3.6.2
numpy                         1.24.1
olefile                       0.46
packaging                     21.3
pbr                           5.9.0
pep517                        0.13.0
Pillow                        9.3.0
pip                           22.3.1
pluggy                        1.0.0
ply                           3.11
pyasn1                        0.4.8
pyasn1-modules                0.2.8
pycparser                     2.21
Pygments                      2.14.0
PyGObject                     3.42.2
pyparsing                     3.0.9
pytest                        7.2.0
pytest-timeout                2.1.0
python-dateutil               2.8.2
pytz                          2022.4
PyYAML                        6.0
requests                      2.28.1
rpm                           4.17.0
setuptools                    65.6.3
six                           1.16.0
snowballstemmer               2.2.0
Sphinx                        5.3.0
sphinx-copybutton             0.5.1
sphinx_inline_tabs            2022.1.2b11
sphinx-issues                 3.0.1
sphinx-removed-in             0.2.1
sphinx-rtd-theme              1.1.1
sphinxcontrib-applehelp       1.0.2.dev20221204
sphinxcontrib-devhelp         1.0.2.dev20221204
sphinxcontrib-htmlhelp        2.0.0
sphinxcontrib-jsmath          1.0.1.dev20221204
sphinxcontrib-qthelp          1.0.3.dev20221204
sphinxcontrib-serializinghtml 1.1.5
sphinxext-opengraph           0.7.4
testtools                     2.5.0
tomli                         2.0.1
tpm2-pkcs11-tools             1.33.7
tpm2-pytss                    1.1.0
urllib3                       1.26.12
wheel                         0.38.4
zipp                          3.11.0

[radarhere]

I've created PR #6859 to resolve this.

[kloczek]

Ha so xclip binary is needed .. let me check 😄

[kloczek]

Indeed after add xclip to build env everything is fine 😄