Add thai font on Google Colaboratory notebook

thai_font.py

!wget https://github.com/Phonbopit/sarabun-webfont/raw/master/fonts/thsarabunnew-webfont.ttf
# !pip install -U --pre matplotlib  
import matplotlib as mpl
mpl.font_manager.fontManager.addfont('thsarabunnew-webfont.ttf') # 3.2+
mpl.rc('font', family='TH Sarabun New')

thai_font_ipa.py

!wget -q http://www.arts.chula.ac.th/ling/wp-content/uploads/TH-Sarabun_Chula1.1.zip -O font.zip
!unzip -qj font.zip TH-Sarabun_Chula1.1/THSarabunChula-Regular.ttf
# !pip install -U --pre matplotlib  
import matplotlib as mpl
mpl.font_manager.fontManager.addfont('THSarabunChula-Regular.ttf')
mpl.rc('font', family='TH Sarabun Chula')

thai_font_name.py

def font_name(filename):
  from matplotlib.ft2font import FT2Font
  font = FT2Font(filename)
  return font.family_name

thai_font_plot.py

import matplotlib.pyplot as plt
plt.text(0.1, 0.8, 'อักษรไทยน้อย', {'size': 30})

You can also install Thai fonts using apt:

!apt install fonts-thai-tlwg