I have a very strange error in my code. I'm writing a python program that generates barcodes and combines them into an image. When I execute the .exe file, it gives me an error. However, it's strange because when I run it from VS Code without any issues, the code works correctly. But when I convert it to an .exe file, it gives me an error.
Here's the code:
def generate_and_save_image(self, filename, dpi=600):
# Create new image
image = Image.new("RGB", (1024, 768), "white")
draw = ImageDraw.Draw(image)
# Font
font_path = "C:/Users/RaulV/Desktop/sbar/ARIAL.ttf"
large_font = ImageFont.load_default()
print("Font Path:", font_path)
print("Large Font Loaded:", large_font)
# Generate and add the origin barcode
barcode_origin = Code128(self.current_origin, writer=ImageWriter())
barcode_origin.save("barcode_origin")
barcode_origin_img = Image.open("barcode_origin.png")
barcode_origin_img = barcode_origin_img.resize((barcode_origin_img.width, barcode_origin_img.height))
image.paste(barcode_origin_img, (10, 40))
draw.text((20, 10), "ORIGEN", fill="black", font=large_font)
# Generate and add the destination barcode
barcode_destination = Code128(self.current_destination, writer=ImageWriter())
barcode_destination.save("barcode_destination")
barcode_destination_img = Image.open("barcode_destination.png")
barcode_destination_img = barcode_destination_img.resize((barcode_destination_img.width, barcode_destination_img.height))
image.paste(barcode_destination_img, (image.width - barcode_destination_img.width - 10, 40))
draw.text((image.width - barcode_destination_img.width - 10, 10), "DESTINO", fill="black", font=large_font)
# Generate and add the scanned barcode
barcode_scanned = Code128(self.codigo_barras, writer=ImageWriter())
barcode_scanned.save(f"barcode")
barcode_scanned_img = Image.open(f"barcode.png")
# Calculate the coordinates to place the barcode in the center of the image
x = (image.width - barcode_scanned_img.width) // 2
y = (image.height - barcode_scanned_img.height) // 2 + 50
image.paste(barcode_scanned_img, (x, y))
# Generate and add the quantity barcode in the bottom right corner
barcode_quantity = Code128(str(self.cantidad), writer=ImageWriter())
barcode_quantity.save("barcode_quantity")
barcode_quantity_img = Image.open("barcode_quantity.png")
barcode_quantity_img = barcode_quantity_img.resize((barcode_quantity_img.width, barcode_quantity_img.height))
image.paste(barcode_quantity_img, (image.width - barcode_quantity_img.width - 10, image.height - barcode_quantity_img.height - 10))
# Text with the quantity
draw.text((image.width - barcode_quantity_img.width - 10, image.height - barcode_quantity_img.height - 30), "CANTIDAD", fill="black", font=large_font)
query = ""
self.cursor.execute(query, (self.codigo_barras))
result = self.cursor.fetchone()
if result:
article_code, description = result
draw.text((10, image.height-90), f"REF: {article_code}", fill="black", font=large_font)
draw.text((10, image.height-30), f"{description}", fill="black", font=large_font)
query = ""
self.cursor.execute(query, (self.current_origin))
result = self.cursor.fetchone()
if result:
cantidadAnterior = result[0]
draw.text((10, image.height-60), f"Unidades en la ubicacion de origen: {cantidadAnterior}", fill="black", font=large_font)
# Save image
image.save(filename, dpi=(dpi, dpi))
Here is the error:
Font Path: C:/Users/RaulV/Desktop/sbar/ARIAL.ttf
Large Font Loaded: <PIL.ImageFont.FreeTypeFont object at 0x0000022DA8EB6ED0>
Exception in Tkinter callback
Traceback (most recent call last):
File "tkinter\__init__.py", line 1967, in __call__
File "combinedApp.py", line 759, in close_selected_boxes
File "combinedApp.py", line 842, in generate_and_save_image
File "barcode\base.py", line 64, in save
File "barcode\codex.py", line 255, in render
File "barcode\base.py", line 100, in render
File "barcode\writer.py", line 269, in render
File "barcode\writer.py", line 440, in _paint_text
File "PIL\ImageFont.py", line 807, in truetype
File "PIL\ImageFont.py", line 804, in freetype
File "PIL\ImageFont.py", line 244, in __init__
OSError: cannot open resource
Line 759:
self.generate_and_save_image(filename)
Line 842:
barcode_origin.save("barcode_origin")
I have tried too with default font: large_font = ImageFont.load_default()
but I get the same error.
When I convert the .py to .exe I use pyinstaller, I tried adding the font in the exe and I get the same error. This is the command to convert:
pyinstaller --noconfirm --onefile --console --add-data "C:/Users/RaulV/Desktop/Barcodes/arial.ttf;." "C:/Users/RaulV/Desktop/Barcodes/combinedApp.py"
Now I'm trying with a simple code and I get the same error:
def generate_barcode(code, filename):
code128 = barcode.get_barcode_class('code128')
barcode_instance = code128(code, writer=ImageWriter())
barcode_instance.save(filename)
generate_barcode('123456789', 'barcode.png')
I found a solution.
I have to create an ImageWriter object before the initialization of Code128, like this:
font_path = 'your_path'
writer = ImageWriter()
writer.font_path = font_path
writer.format = 'png'
barcode_origin = Code128(self.current_origin, writer=writer)