Unable to install Vips and some dependencies seem to be corrupted.

[alfredox10]

So I am running the ./configure from the package I got from your site and this is the output it produces:

• build options
  native win32: no
  native OS X: no
  open files in binary mode: no
  enable debug: no
  build deprecated components: yes
  build docs with gtkdoc: no
  gobject introspection: no
  build vips7 Python binding: yes
  install vips8 Python overrides: no
  (requires pygobject-3.12.0 or later)
• optional dependencies
  use fftw3 for FFT: yes
  Magick package: MagickWand
  file import with libMagick: yes
  accelerate loops with orc: yes
  (requires orc-0.4.11 or later)
  ICC profile support with lcms: yes (lcms2)
  file import with OpenEXR: yes
  file import with OpenSlide: yes
  (requires openslide-3.3.0 or later)
  file import with matio: yes
  file import with cfitsio: yes
  file import/export with libwebp: yes
  text rendering with pangoft2: yes
  file import/export with libpng: yes (pkg-config libpng >= 1.2.9)
  (requires libpng-1.2.9 or later)
  file import/export with libtiff: yes (pkg-config libtiff-4)
  file import/export with libjpeg: yes
  image pyramid export: yes
  (requires libgsf-1 1.14.27 or later)
  use libexif to load/save JPEG metadata: yes

So it's saying I need gobject introspection and gtkdoc, which I thought I already had installed. So I went back and tried to install gobject first using Synaptic Package Manager but it kept giving a dependency error. So then I used this command:
sudo apt-get install gobject-introspection

and this is what I get:
The following packages have unmet dependencies:
gobject-introspection : Depends: libgirepository-1.0-1 (= 1.40.0-1) but 1.40.0-1ubuntu0.2 is to be installed
E: Unable to correct problems, you have held broken packages.
alfredo@alfpc-ubuntu:~/Downloads/dependencies/gobject-introspection-1.44.0$

Can you help me resolve this?

Thanks,

Alfredo

[alfredox10]

It seems like I have everything done for my install, includding the Vips8 binding according to the ./configure output. But that file isn't getting created. Everything else is there includding the gi dir and the Vips.py in the override dir.

Can I just download this file and paste it where it's supposed to go or how can i fix this?

• build options
  native win32: no
  native OS X: no
  open files in binary mode: no
  enable debug: no
  build deprecated components: yes
  build docs with gtkdoc: no
  gobject introspection: yes
  build vips7 Python binding: yes
  install vips8 Python overrides: yes
  (requires pygobject-3.12.0 or later)
• optional dependencies
  use fftw3 for FFT: yes
  Magick package: MagickWand
  file import with libMagick: yes
  accelerate loops with orc: yes
  (requires orc-0.4.11 or later)
  ICC profile support with lcms: yes (lcms2)
  file import with OpenEXR: yes
  file import with OpenSlide: yes
  (requires openslide-3.3.0 or later)
  file import with matio: yes
  file import with cfitsio: yes
  file import/export with libwebp: yes
  text rendering with pangoft2: yes
  file import/export with libpng: yes (pkg-config libpng >= 1.2.9)
  (requires libpng-1.2.9 or later)
  file import/export with libtiff: yes (pkg-config libtiff-4)
  file import/export with libjpeg: yes
  image pyramid export: yes
  (requires libgsf-1 1.14.27 or later)
  use libexif to load/save JPEG metadata: yes

[jcupitt]

Hi @alfredox10, I would fix the synaptic problem first. Try something like:

http://askubuntu.com/questions/223237/unable-to-correct-problems-you-have-held-broken-packages

Your typelib problem is strange. Is the .gir file being created? After compiling, I see:

john@katamata ~/GIT/libvips (master) $ ls libvips/Vips*
libvips/Vips-8.0.gir     libvips/Vips-8.0.typelib

[alfredox10]

I was able to fix the synaptic problem with aptitude, thanks!

Here is the output of my latest run of ./configure, everything seems to be in place: http://pastebin.com/FPesqTma

However when I run make it's a different story. It doesn't seem like it works: http://pastebin.com/FefDcF3T

[jcupitt]

I'd guess you have a broken package: only part of one of the gobject-introspection things seems to be there. Perhaps something crashed or quit half-way through install?

I see:

$ apt-file search g-ir-scanner
gobject-introspection: /usr/bin/g-ir-scanner

Maybe try uninstalling and reinstalling gobject-introspection:

$ sudo apt-get remove gobject-introspection
$ sudo apt-get install gobject-introspection libgirepository1.0-dev

[alfredox10]

For some reason that still didn't work. I thought everything looked good after running make. But I get this error when I run import of vips:
In [1]: from gi.repository import Vips
Out [1]: Error:root:Could not find any typelib for Vips

ImportError Traceback (most recent call last)
in ()
----> 1 from gi.repository import Vips

ImportError: cannot import name Vips

So I am not sure why it's still failing.
These files seem to be in place:
/usr/bin/g-ir-scanner
/usr/lib/gobject-introspection/giscanner/
However the typelib file for Vips is still not inside /usr/lib/girepository-1.0/, I think that's the last missing component. What command specifically generates that, is it the make?

configure output: http://pastebin.com/i7jyMAkX
make output: https://www.dropbox.com/s/y30uu2uki99g541/vips-make-output-2.txt?dl=0

[jcupitt]

It all looks OK I think. You need to make install to copy the files to their destinations, and you may need to set GI_TYPELIB_PATH to point to Vips-8.0.typelib.

There some more notes in the Python docs, I guess you saw?

http://www.vips.ecs.soton.ac.uk/supported/current/doc/html/libvips/using-from-python.html

[alfredox10]

It works now but I had to additionally do these steps:

1. sudo apt-get install python-gobject-dev
2. I manually copied these files:
   vips-8.0.2/libvips/Vips-8.0.typelib to /usr/lib/girepository-1.0/
   'vips-8.0.2/libvips/Vips.py' to /usr/lib/python2.7/dist-packages/gi/overrides/

I am not sure if step #2 should have been done automatically during the make step, but after I did it myself, it works :D.

Additionally, I am having trouble finding a good API guide to use the code in python, I only found this but it doesn't really mention everything I can do with a VipImage object.
http://www.vips.ecs.soton.ac.uk/index.php?title=Python
http://www.vips.ecs.soton.ac.uk/supported/7.42/doc/html/libvips/using-from-python.html

Is there something else? I want to put the image into a numpy 3D array similar to how PIL images automatically get processed this way:
In[1]: import numpy
In[2]: from PIL import Image
In[3]: image = Image.open('43.jpg')
In[4]: image
Out[4]: <PIL.JpegImagePlugin.JpegImageFile image mode=RGB size=3216x2136 at 0x7F34CC1876C8>
In[5]: imgArray2 = numpy.asarray(image, dtype=numpy.float32)
In[6]: imgArray2.shape
Out[6]: (2136, 3216, 3)

[alfredox10]

Ok so I've been testing the functionality and the problem seems to be resolved, I'll go ahead and make a new post for my next question.

Thanks!

[jcupitt]

Hey, great it's working This will become simple once vips8 is packaged by Debian, but for now it's rather a manual process :-(

On 2., it's best to set GI_TYPELIB_PATH so that Python can pick up the Vips-8.0.typelib file. Unfortunately there's no variable you can set for Vips.py, you do need to copy that to the system area. The Python docs talk about this:

http://www.vips.ecs.soton.ac.uk/supported/current/doc/html/libvips/using-from-python.html