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How to add words on a picture and bold one of them using Pillow in Python?

I add text on the image using PIL library in Python. How can I bold one word in a sentence? Let's say I want to write in the picture: "This is an example sentence".

Currently, you can't bold, underline, italicize etc. certain parts of a sentence. You can use multiple separate .text() commands and change their x-y coordinates to make it look like one sentence. To bold text, you can use a bolded text font in a font family, and use that font for a .text() command. In the example below, I used the Arial and the Arial Bold font. I am on a windows machine, so the file paths will be different on Linux or Mac.
Code:
#import statements
import PIL
import PIL.Image as Image
import PIL.ImageDraw as ImageDraw
import PIL.ImageFont as ImageFont
#save fonts
font_fname = '/fonts/Arial/arial.ttf'
font_fname_bold = '/fonts/Arial/arialbd.ttf'
font_size = 25
#regular font
font = ImageFont.truetype(font_fname, font_size)
#bolded font
font_bold = ImageFont.truetype(font_fname_bold, font_size)
#Open test image. Make sure it is in the same working directory!
with Image.open("test.jpg") as img:
#Create object to draw on
draw = ImageDraw.Draw(img)
#Add text
draw.text(xy=(10,10),text="Gardens have ",font=font)
draw.text(xy=(175,10),text="many",font=font_bold)
draw.text(xy=(240,10),text=" plants and flowers",font=font)
#Display new image
img.show()
Test image:
https://i.stack.imgur.com/zU75J.jpg

Python - How to turn strings into PNGs of the text

I am building a thumbnail creation program and I need to turn a string into an image of that string so that it can be pasted into the thumbnail. I am using the PIL Image module for working with my images.
For example, if I am given a string of "#53" I want to be able to create a PNG of that string so that I can put it in the bottom right corner of the thumbnail. My current plan for implementing this is to have a PNG of every single character in a folder, and then loop through the string and stitch together the images of the single characters until the whole string is stitched together. However, this seems a little sloppy, and it would also be hard to change fonts and it would also be difficult to even find such a library of PNGs for every single letter. Any suggestions?

PIL does what you want directly. From the docs, http://effbot.org/imagingbook/imagefont.htm
import ImageFont, ImageDraw
draw = ImageDraw.Draw(image)
# use a bitmap font
font = ImageFont.load("arial.pil")
draw.text((10, 10), "hello", font=font)
# use a truetype font
font = ImageFont.truetype("arial.ttf", 15)
draw.text((10, 25), "world", font=font)

Rendering Emoji with PIL

I am trying to make images out of tweets, however some of them contain Emojis. I am using PIL to render my images and the Symbola font.
The text is in unicode utf-8 encoding and the Symbola font does include the emojis. Here is an abridged version of the code:
from PIL import Image, ImageFont, ImageDraw
text = u"\U0001f300" #CYCLONE emoji
image = Image.new("RGBA", (100,100), (255,255,255))
font = ImageFont.truetype("Symbola.ttf", 60, encoding='unic')
draw = ImageDraw.Draw(image)
draw.text((0,0), text, (0,0,0), font=font)
image.save("Test.png")
image.show()
This just renders and image with two rectangles instead of the emoji
Would appreciate any help or ideas.
Thanks!
EDIT: As falsetru pointed out, this code does run in Ubuntu, however it doesn't run on Windows or on Mac. Any ideas?

If the symbol CYCLONE u"\U0001f300" (I download a Symbola.tff from web) then is a very simple to use with PIL:
from PIL import Image, ImageDraw, ImageFont, ImageFilter
#configuration
font_size=36
width=500
height=100
back_ground_color=(255,255,255)
font_size=36
font_color=(0,0,0)
unicode_text =u"\U0001f300"
im = Image.new ( "RGB", (width,height), back_ground_color )
draw = ImageDraw.Draw ( im )
unicode_font = ImageFont.truetype("Symbola.ttf", font_size)
draw.text ( (10,10), unicode_text, font=unicode_font, fill=font_color )
im.show()
Take a look at this

There was a bug in Pillow, see #1774 or #3777. This should now be fixed in version 6.1 of Pillow with PR#3780, but only for Python 3.x.

If you are looking to write symbols with your original font, you can do this by merging your font with Symbola.ttf or any emojis font. You can merge the two fonts using fontforge (https://fontforge.org/).
start fontforge, open up your main font,
Click menu: element->merge fonts and choose your emoji font (Symbola.ttf).
answer no for any popup dialog.
optionally change your new font's name: element->font info.
finally go to file->generate fonts when done and save it as ttf (TrueType).
Now, you can use your generated font to draw text with emojis!

Python, PIL; Text to Image and fonts

I have an issue with writing text to an image under Python and PIL -
I'm able to write text to a png file, though not bold text. Could anyone provide an example of how to achieve this?
I thought the easiest solution may be was use a bold-variant of a text, but I'm unable to see anything in the Windows/font folder that supplies this - does this mean font types have a 'bold attribute' that is T/F?:
Code I'm using:
import PIL
from PIL import ImageFont
from PIL import Image
from PIL import ImageDraw
# font = ImageFont.truetype("Arial-Bold.ttf",14)
font = ImageFont.truetype("Arial.ttf",14)
img=Image.new("RGBA", (500,250),(255,255,255))
draw = ImageDraw.Draw(img)
draw.text((0, 0),"This is a test",(0,0,0),font=font)
draw = ImageDraw.Draw(img)
img.save("a_test.png")

A simple way to do it:
font = ImageFont.load_default().font
Also you can do a google search for 'verdana.ttf' and download it put it in the same directory as the python file:
Then add it like this:
font = ImageFont.truetype("Verdana.ttf",14)

You aren't looking at actual font files in the control panel (explorer magically turns into the font viewer control panel when in the Windows/fonts folder as well), they are grouped by family for your convenience. Double click the family to see the fonts in the family:
Then right-click and choose properties to find the file name:

Python Imaging Library - Text rendering

I'm trying to render some text using PIL, but the result that comes out is, frankly, crap.
For example, here's some text I wrote in Photoshop:
and what comes out of PIL:
As you can see, the results from PIL is less than satisfactory. Maybe I'm just being picky, but is there any way to draw text using PIL that gets results more close to my reference image?
Here's the code I'm using on Python 2.7 with PIL 1.1.7
image = Image.new("RGBA", (288,432), (255,255,255))
usr_font = ImageFont.truetype("resources/HelveticaNeueLight.ttf", 25)
d_usr = ImageDraw.Draw(image)
d_usr = d_usr.text((105,280), "Travis L.",(0,0,0), font=usr_font)

I came up with my own solution that I find acceptable.
What I did was render the text large, like 3x the size it needs to be then scale it resize it down with antialiasing, it's not 100% perfect, but it's a hell of a lot better than default, and doesn't require cairo or pango.
for example,
image = Image.new("RGBA", (600,150), (255,255,255))
draw = ImageDraw.Draw(image)
font = ImageFont.truetype("resources/HelveticaNeueLight.ttf", fontsize)
draw.text((10, 0), txt, (0,0,0), font=font)
img_resized = image.resize((188,45), Image.ANTIALIAS)
and you endup with this result,
which is a lot better than what I was getting before with the same font.

Try using pycairo - the python bindings for the Cairo drawing library -- it is usefull for more refined drawing, with antialiased lines,
and such - and you can generate vector based images as well
Correctly handling fonts, and layout is complicated, and requires the use of
the "pango" and "pangocairo" libraries as well. Although they are made
for serious font work (all GTK+ widgets do use pango for font rendering),
the available docuemtnation and examples are extremely poor.
The sample bellow shows the prints available in the system and renders the
sample text in a font family passed as parameter on the command line.
# -*- coding: utf-8 -*-
import cairo
import pango
import pangocairo
import sys
surf = cairo.ImageSurface(cairo.FORMAT_ARGB32, 320, 120)
context = cairo.Context(surf)
#draw a background rectangle:
context.rectangle(0,0,320,120)
context.set_source_rgb(1, 1, 1)
context.fill()
#get font families:
font_map = pangocairo.cairo_font_map_get_default()
families = font_map.list_families()
# to see family names:
print [f.get_name() for f in font_map.list_families()]
#context.set_antialias(cairo.ANTIALIAS_SUBPIXEL)
# Positions drawing origin so that the text desired top-let corner is at 0,0
context.translate(50,25)
pangocairo_context = pangocairo.CairoContext(context)
pangocairo_context.set_antialias(cairo.ANTIALIAS_SUBPIXEL)
layout = pangocairo_context.create_layout()
fontname = sys.argv[1] if len(sys.argv) >= 2 else "Sans"
font = pango.FontDescription(fontname + " 25")
layout.set_font_description(font)
layout.set_text(u"Travis L.")
context.set_source_rgb(0, 0, 0)
pangocairo_context.update_layout(layout)
pangocairo_context.show_layout(layout)
with open("cairo_text.png", "wb") as image_file:
surf.write_to_png(image_file)

I've never used PIL, but a quick review of the documentation for the Draw method indicates that PIL provides a way to render simple graphics. Photoshop provides a way to render complex graphics. To get anywhere close to Photoshop-like results requires, at a minimum, font hinting and anti-aliasing. PIL's documentation doesn't even hint at having such capabilities. You may want to look at using an external tool that might do a better job of rendering text on images. For example, ImageMagick (you'll want to use the 8-bit version, which handles standard 24-bit RGB). You can find some text drawing samples here: http://www.imagemagick.org/Usage/draw/

Suggestion: use Wand or a different Imaging library
Here's an example with wand -
from wand.color import Color
from wand.image import Image
from wand.drawing import Drawing
from wand.compat import nested
with Drawing() as draw:
with Image(width=1000, height=100, background=Color('lightblue')) as img:
draw.font_family = 'Indie Flower'
draw.font_size = 40.0
draw.push()
draw.fill_color = Color('hsl(0%, 0%, 0%)')
draw.text(0,int(img.height/2 + 20), 'Hello, world!')
draw.pop()
draw(img)
img.save(filename='image.png')

In python3 there is an option for aliased fonts. I couldn't find this answer anywhere, hopefully it helps someone like me who found this question on google and had to dig a long time to find the answer.
draw = ImageDraw.Draw(img)
draw.fontmode = "L"
Mentioned in the docs here

You can also try to write the font two times it increases the quality immense.
image = Image.new("RGBA", (288,432), (255,255,255))
usr_font = ImageFont.truetype("resources/HelveticaNeueLight.ttf", 25)
d_usr = ImageDraw.Draw(image)
d_usr = d_usr.text((105,280), "Travis L.",(0,0,0), font=usr_font)
d_usr = d_usr.text((105,280), "Travis L.",(0,0,0), font=usr_font)