pygobject-2.28.6 won't configure: No package 'gobject-introspection-1.0' found, how do I resolve?

Question

I'm trying to get pygobject-2.28.6 to compile in cygwin (version in repository is 2.28.4 which has some issues). Here is the tail of ./configure:

checking for GLIB - version >= 2.24.0... yes (version 2.34.3)
checking for ffi... checking for FFI... yes
checking for GIO... yes
checking for GIOUNIX... yes
checking for GI... no
configure: error: Package requirements (glib-2.0 >= 2.24.0
        gobject-introspection-1.0 >= 0.10.2
    ) were not met:

No package 'gobject-introspection-1.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables GI_CFLAGS
and GI_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

I have gobject-introspection 1.34.2-3 installed. As seen here:

$ whereis gobject-introspection
gobject-introspection: /lib/gobject-introspection /usr/lib/gobject-introspection

and here

$ whereis gobject-introspection-1.0
gobject-introspection-1: /usr/share/gobject-introspection-1.0

I've tried setting GI_CFLAGS and GI_LIBS in configure = to /lib/ and /usr/lib/ (and even /usr/share/) but to no avail. What else can I do to try and resolve this? Thank you for your time!

Answer 1

My error message while running pip install pygobject:

Collecting pygobject
  Using cached PyGObject-3.42.2.tar.gz (719 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting pycairo>=1.16.0
  Using cached pycairo-1.21.0-cp39-cp39-linux_x86_64.whl
Building wheels for collected packages: pygobject
  Building wheel for pygobject (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for pygobject (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [42 lines of output]
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build/lib.linux-x86_64-cpython-39
      creating build/lib.linux-x86_64-cpython-39/pygtkcompat
      copying pygtkcompat/pygtkcompat.py -> build/lib.linux-x86_64-cpython-39/pygtkcompat
      copying pygtkcompat/generictreemodel.py -> build/lib.linux-x86_64-cpython-39/pygtkcompat
      copying pygtkcompat/__init__.py -> build/lib.linux-x86_64-cpython-39/pygtkcompat
      creating build/lib.linux-x86_64-cpython-39/gi
      copying gi/types.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/pygtkcompat.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/module.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/importer.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/docstring.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_signalhelper.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_propertyhelper.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_ossighelper.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_option.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_gtktemplate.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_error.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/_constants.py -> build/lib.linux-x86_64-cpython-39/gi
      copying gi/__init__.py -> build/lib.linux-x86_64-cpython-39/gi
      creating build/lib.linux-x86_64-cpython-39/gi/repository
      copying gi/repository/__init__.py -> build/lib.linux-x86_64-cpython-39/gi/repository
      creating build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/keysyms.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/__init__.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/Pango.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/Gtk.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/Gio.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/GdkPixbuf.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/Gdk.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/GObject.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/GLib.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      copying gi/overrides/GIMarshallingTests.py -> build/lib.linux-x86_64-cpython-39/gi/overrides
      running build_ext
      Package gobject-introspection-1.0 was not found in the pkg-config search path.
      Perhaps you should add the directory containing `gobject-introspection-1.0.pc'
      to the PKG_CONFIG_PATH environment variable
      Package 'gobject-introspection-1.0', required by 'virtual:world', not found
      Command '('pkg-config', '--print-errors', '--exists', 'gobject-introspection-1.0 >= 1.56.0')' returned non-zero exit status 1.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for pygobject
Failed to build pygobject
ERROR: Could not build wheels for pygobject, which is required to install pyproject.toml-based projects

did not mention 'gobject-introspection-1.0' but this doc mentions commands setting gobject-introspection and resolved my problem smoothly.

sudo pacman -S --noconfirm python-wheel
sudo pacman -S --noconfirm base-devel openssl zlib git gobject-introspection

Answer 2

For macOS {mine is(intel cpu)}:

 brew install pygobject3 gtk+3
 pip install --no-use-pep517 PyGObject

It worked in the python 2.7 virtual environment.

Answer 3

You're probably missing the development package. The package name varies by distribution, but it's the one containing /usr/lib/pkgconfig/gobject-introspection-1.0.pc (or /usr/lib64/pkgconfig/gobject-introspection-1.0.pc for some 64-bit distros):

• Fedora, CentOS, RHEL, etc.: gobject-introspection-devel
• Debian, Ubuntu, Mint, etc.: libgirepository1.0-dev
• Arch: gobject-introspection
• FreeBSD: gobject-introspection
• Cygwin: libgirepository1.0-devel
• msys2: mingw-w64-x86_64-gobject-introspection and/or mingw-w64-i686-gobject-introspection

Answer 4

I don't have enough rep to comment, so this is really meant to be an addendum to nemequ's answer:

• MSYS2: mingw-w64-x86_64-gobject-introspection and/or mingw-w64-i686-gobject-introspection

Answer 5

I got this to compile on cygwin. The package you need is: libgirepository1.0-devel.

In Ubuntu it's called libgirepository1.0-dev