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reportlab low performance

/ Published in: Python
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So, when I try to set the BYTES_TO_READ variable to more than 200-300 thousands (i.e., just to see what happening, not reading the full book, just some part of it) - it takes HUGE amount of time...

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  1. BYTES_TO_READ = 10000 
  2.  
  3. def go(text):
  4.     doc = SimpleDocTemplate("output.pdf")
  5.     Story = [Spacer(1, 2*inch)]
  6.     style = styles["Normal"]
  7.     p = Paragraph(text, style)
  8.     Story.append(p)
  9.     doc.build(Story)
  10.  
  11. def get_text_from_file():
  12.     source_file = open("book.txt", "r")
  13.     text = source_file.read(BYTES_TO_READ)
  14.     source_file.close()
  15.     return text
  16.  
  17. go(get_text_from_file())

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