Bug: `create_image.py` fails on modern Linux distributions due to legacy Pango import

[yyjeqhc]

Description

The create_image.py script currently fails to run on modern Linux distributions (e.g., Ubuntu 22.04+, Fedora 38+, openEuler) due to a ModuleNotFoundError for the pango module.

This issue arises because the script uses the legacy direct import method (import pango), which relies on static PyGTK 2 bindings. Modern Linux systems use PyGObject with GObject Introspection, which requires importing Pango via the gi.repository namespace.

Steps to Reproduce

1. Set up a clean, modern Linux environment, such as Ubuntu 22.04 or 24.04.

2. Install the necessary dependencies:

   sudo apt update
   sudo apt install -y python3-cairo python3-gi python3-gi-cairo gir1.2-pango-1.0 python3-pip python3-venv
   #and then，you may create a virtual python env and activate it.

3. Clone the repository:

   git clone [https://github.com/notofonts/nototools.git](https://github.com/notofonts/nototools.git)
   cd nototools
   
   #install the nototools.
   pip3 install -r requirements.txt
   pip3 install .

4. Attempt to run the script:

   python3 nototools/create_image.py -h

Actual Behavior

The script fails with the following traceback:

(py_venv) root@MSI:~/nototools# create_image.py -h
/root/py_venv/bin/create_image.py:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  __import__('pkg_resources').require('notofonttools==0.2.20')
Traceback (most recent call last):
  File "/root/py_venv/bin/create_image.py", line 7, in <module>
    exec(compile(f.read(), __file__, 'exec'))
  File "/root/nototools/nototools/create_image.py", line 33, in <module>
    import pango
ModuleNotFoundError: No module named 'pango'

Expected Behavior

The script should run successfully and display its help message.

Suggested Solution

The import statements in create_image.py should be updated to use the modern PyGObject API. This involves:

• Importing the gi module.
• Calling gi.require_version() for Pango and PangoCairo.
• Importing Pango and PangoCairo from gi.repository.

This change will make the script compatible with standard modern Linux environments. I will submit a Pull Request shortly to address this.