Variable as text string

[knoxvillesjoker]

What did you do?

Porting variable in python using PIL library in python 3.5

What did you expect to happen?

Display of interpreted value pulled from array of changing values

What actually happened?

No matter how I call it I get a string or bool error. No matter what it will not allow use of an imported variable within the while True: loop.
Going through the structures there does not appear to be documentation on using variables within the draw.text text string section.

If I find the appropriate fix I will post an update.

What are your OS, Python and Pillow versions?

• OS: Raspbian
• Python: 3.5
• Pillow: osdefault

code goes here

[radarhere]

Hi. Could you post some self-contained code demonstrating the problem?

[knoxvillesjoker]

Good point.

# -*- coding: utf-8 -*-
import time
import subprocess
import digitalio
import board
from PIL import Image, ImageDraw, ImageFont
import adafruit_rgb_display.st7789 as st7789
cs_pin = digitalio.DigitalInOut(board.CE0)
dc_pin = digitalio.DigitalInOut(board.D25)
reset_pin = None
BAUDRATE = 64000000
spi = board.SPI()
disp = st7789.ST7789(    spi,    cs=cs_pin,    dc=dc_pin,    rst=reset_pin,    baudrate=BAUDRATE,    width=240,    height=240,    x_offset=0,    y_offset=80,)
# button i2c assy
import busio
from i2c_button import I2C_Button
i2c = busio.I2C(board.SCL, board.SDA)
button = I2C_Button(i2c)
height = disp.width  # we swap height/width to rotate it to landscape!
width = disp.height
image = Image.new("RGB", (width, height))
rotation = 180
draw = ImageDraw.Draw(image)
draw.rectangle((0, 0, width, height), outline=0, fill=(0, 0, 0))
disp.image(image, rotation)
padding = -2
top = padding
bottom = height - padding
x = 0
font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)
backlight = digitalio.DigitalInOut(board.D22)
backlight.switch_to_output()
backlight.value = True
while True:
    print(button.status)
    state = button.status[2]
    print(state)
    # Draw a black filled box to clear the image.
    draw.rectangle((0, 0, width, height), outline=0, fill=0)
    # Shell scripts for system monitoring from here:
    # https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load
    cmd = "hostname -I | cut -d' ' -f1"
    IP = "IP: " + subprocess.check_output(cmd, shell=True).decode("utf-8")
    cmd = "cat /sys/class/thermal/thermal_zone0/temp |  awk '{printf \"CPU Temp: %.1f C\", $(NF-0) / 1000}'"  # pylint: disable=line-too-long
    Temp = subprocess.check_output(cmd, shell=True).decode("utf-8")
    text = "hello world!"
    raw = "but, bat, acc, nunchuck:, acc, stick, but"
    test = "echo button.status[2]"
    TEST =  subprocess.check_output(test, shell=True).decode("utf-8")
    print(IP)
    print(Temp)
    print(text)
    print(raw)
# Write four lines of text.
    y = top
    draw.text((x, y), IP, font=font, fill="#FFFFFF")
    y += font.getsize(IP)[1]
    draw.text((x, y), Temp, font=font, fill="#FF00FF")
    y += font.getsize(text)[1]
    draw.text((x, y), text, font=font, fill="#F0F0F0")
    y += font.getsize(raw)[1]
    draw.text((x, y), raw, font=font, fill="#ff1900")
    y += font.getsize("state")[1]
    draw.text((x, y), str(state), font=font, fill="#ff1900")
   # Display image.
    disp.image(image, rotation)
    time.sleep(0.1)

[knoxvillesjoker]

I discovered the fix after fighting with this for a few weeks.

    y += font.getsize("state")[1]
    draw.text((x, y), str(state), font=font, fill="#ff1900")

the variable has to be stated as:

str(variablename)

This is not well documented or stated in the documentation anywhere.

This is part of a bigger project and I am literally teaching myself python as I go. Your support community is great so I try to contribute by making sure any issues are pointed out so that they can maybe be addressed.

[radarhere]

Ok, so from what I can see, state is either 0 or 1.

So a simplified example of your problem is

from PIL import Image, ImageDraw, ImageFont
im = Image.new("RGB", (100, 100))
d = ImageDraw.Draw(im)
d.text((10,10), 1)

giving

Traceback (most recent call last):
  File "drawtext.py", line 4, in <module>
    d.text((10,10), 1)
  File "PIL/ImageDraw.py", line 289, in text
    if self._multiline_check(text):
  File "PIL/ImageDraw.py", line 264, in _multiline_check
    return split_character in text
TypeError: argument of type 'int' is not iterable

I've created #5007 to resolve this by clarifying that the text argument must be a string. Let us know if you have any thoughts.

[knoxvillesjoker]

Yes the work around i found was to use: Str(variablename) To pass the information into the text array and onto the display. That trick was not documented anywhere and took me a While to figure out... Vos | jokers komputer repair | ETCH | 865.278.7725 | Knoxvilles_joker@yahoo.com

…

On Oct 25, 2020, at 4:01 PM, Andrew Murray ***@***.***> wrote:  Ok, so from what I can see, state is either 0 or 1. So a simplified example of your problem is from PIL import Image, ImageDraw, ImageFont im = Image.new("RGB", (100, 100)) d = ImageDraw.Draw(im) d.text((10,10), 1) giving Traceback (most recent call last): File "drawtext.py", line 4, in <module> d.text((10,10), 1) File "PIL/ImageDraw.py", line 289, in text if self._multiline_check(text): File "PIL/ImageDraw.py", line 264, in _multiline_check return split_character in text TypeError: argument of type 'int' is not iterable I've created #5007 to resolve this by clarifying that the text argument must be a string. Let us know if you have any thoughts. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.