I am trying to install Pillow library but keep on getting errors. I thought it was some pip install like many others but i can't get rid of this error. Kept on searching on the internet and it turns out that pillow uses external libraries like libjpeg and zlib. Tried to install them but does not work either. I have the latest python version installed and pip is updated too. Tried pip install --upgrade setuptools wheel to upgrade those packages. I use Windows 11. I paste the complete message error just in case it helps. Collecting pillow Downloading pillow-11.1.0.tar.gz (46.7 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 46.7/46.7 MB 52.2 MB/s eta 0:00:00 Preparing metadata (pyproject.toml) ... done Building wheels for collected packages: pillow Building wheel for pillow (pyproject.toml) ... error error: subprocess-exited-with-error × Building wheel for pillow (pyproject.toml) did not run successfully. │ exit code: 1 ╰─> [217 lines of output] running bdist_wheel running build running build_py creating build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\BdfFontFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\BlpImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\BmpImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\BufrStubImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ContainerIO.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\CurImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\DcxImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\DdsImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\EpsImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ExifTags.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\features.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\FitsImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\FliImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\FontFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\FpxImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\FtexImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\GbrImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\GdImageFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\GifImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\GimpGradientFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\GimpPaletteFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\GribStubImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\Hdf5StubImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\IcnsImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\IcoImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\Image.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageChops.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageCms.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageColor.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageDraw.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageDraw2.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageEnhance.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageFilter.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageFont.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageGrab.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageMath.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageMode.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageMorph.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageOps.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImagePalette.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImagePath.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageQt.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageSequence.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageShow.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageStat.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageTk.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageTransform.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImageWin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\ImtImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\IptcImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\Jpeg2KImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\JpegImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\JpegPresets.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\McIdasImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\MicImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\MpegImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\MpoImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\MspImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PaletteFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PalmImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PcdImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PcfFontFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PcxImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PdfImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PdfParser.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PixarImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PngImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PpmImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PsdImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\PSDraw.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\QoiImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\report.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\SgiImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\SpiderImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\SunImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\TarIO.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\TgaImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\TiffImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\TiffTags.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\WalImageFile.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\WebPImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\WmfImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\XbmImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\XpmImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\XVThumbImagePlugin.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_binary.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_deprecate.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_tkinter_finder.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_typing.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_util.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_version.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\__init__.py -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\__main__.py -> build\lib.mingw_x86_64-cpython-311\PIL running egg_info writing src\pillow.egg-info\PKG-INFO writing dependency_links to src\pillow.egg-info\dependency_links.txt writing requirements to src\pillow.egg-info\requires.txt writing top-level names to src\pillow.egg-info\top_level.txt reading manifest file 'src\pillow.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' warning: no files found matching '*.c' warning: no files found matching '*.h' warning: no files found matching '*.sh' warning: no files found matching '*.txt' warning: no files found matching '.flake8' warning: no previously-included files found matching '.appveyor.yml' warning: no previously-included files found matching '.clang-format' warning: no previously-included files found matching '.coveragerc' warning: no previously-included files found matching '.editorconfig' warning: no previously-included files found matching '.readthedocs.yml' warning: no previously-included files found matching 'codecov.yml' warning: no previously-included files found matching 'renovate.json' warning: no previously-included files matching '.git*' found anywhere in distribution warning: no previously-included files matching '*.so' found anywhere in distribution no previously-included directories found matching '.ci' no previously-included directories found matching 'wheels' adding license file 'LICENSE' writing manifest file 'src\pillow.egg-info\SOURCES.txt' copying src\PIL\_imaging.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_imagingcms.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_imagingft.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_imagingmath.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_imagingmorph.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_imagingtk.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\_webp.pyi -> build\lib.mingw_x86_64-cpython-311\PIL copying src\PIL\py.typed -> build\lib.mingw_x86_64-cpython-311\PIL running build_ext The headers or library files could not be found for zlib, a required dependency when compiling Pillow from source. Please see the install instructions at: https://pillow.readthedocs.io/en/latest/installation/basic-installation.html Traceback (most recent call last): File "<string>", line 1032, in <module> File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\__init__.py", line 117, in setup return distutils.core.setup(**attrs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\core.py", line 186, in setup return run_commands(dist) ^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\core.py", line 202, in run_commands dist.run_commands() File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\dist.py", line 983, in run_commands self.run_command(cmd) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\dist.py", line 999, in run_command super().run_command(command) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\dist.py", line 1002, in run_command cmd_obj.run() File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\command\bdist_wheel.py", line 369, in run self.run_command("build") File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\cmd.py", line 339, in run_command self.distribution.run_command(command) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\dist.py", line 999, in run_command super().run_command(command) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\dist.py", line 1002, in run_command cmd_obj.run() File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\command\build.py", line 136, in run self.run_command(cmd_name) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\cmd.py", line 339, in run_command self.distribution.run_command(command) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\dist.py", line 999, in run_command super().run_command(command) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\dist.py", line 1002, in run_command cmd_obj.run() File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\command\build_ext.py", line 99, in run _build_ext.run(self) File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\_distutils\command\build_ext.py", line 365, in run self.build_extensions() File "<string>", line 851, in build_extensions RequiredDependencyException: zlib During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 389, in <module> main() File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 373, in main json_out["return_val"] = hook(**hook_input["kwargs"]) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 280, in build_wheel return _build_backend().build_wheel( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\AppData\Local\Temp\pip-install-o031ajm1\pillow_06aebdbba6ae41089df64da702c09189\_custom_build\backend.py", line 26, in build_wheel return super().build_wheel(wheel_directory, config_settings, metadata_directory) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\build_meta.py", line 438, in build_wheel return _build(['bdist_wheel', '--dist-info-dir', str(metadata_directory)]) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\build_meta.py", line 426, in _build return self._build_with_temp_dir( ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\build_meta.py", line 407, in _build_with_temp_dir self.run_setup() File "C:\Users\admin\AppData\Local\Temp\pip-install-o031ajm1\pillow_06aebdbba6ae41089df64da702c09189\_custom_build\backend.py", line 20, in run_setup return super().run_setup(setup_script) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\admin\OneDrive - Universidad de Córdoba\Pedro Medina\Projects\qr-code-generator\venv\lib\python3.11\site-packages\setuptools\build_meta.py", line 320, in run_setup exec(code, locals()) File "<string>", line 1048, in <module> RequiredDependencyException: The headers or library files could not be found for zlib, a required dependency when compiling Pillow from source. Please see the install instructions at: https://pillow.readthedocs.io/en/latest/installation/basic-installation.html [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for pillow Failed to build pillow ERROR: Failed to build installable wheels for some pyproject.toml based projects (pillow) I tried to install a previous version of Pillow, i tried to uninstall and reinstall and then couldn´t get any solution. I am not sure if zlib and libjpeg are successfully installed, just went into the GnuWin32 website and downloaded 'source'. Continue reading...