python - Reportlab new line in a long line

Question

我需要一个新行，这样我就可以在 PFD 中看到一个格式，我尝试添加一个页面宽度但它没有用，我用另一个东西/n 也没有用。这是我的代码。我可以手动添加格式，因为我需要显示从数据库中获取的信息，并且我在一长行中获取信息。

def PdfReportView(request):
    print id
    # Create the HttpResponse object with the appropriate PDF headers.
    response = HttpResponse(content_type='application/pdf')
    response['Content-Disposition'] = 'filename="PatientReport.pdf"'
    c = canvas.Canvas(response, pagesize=letter)
    t = c.beginText()
    t.setFont('Helvetica-Bold', 10)
    t.setCharSpace(3)
    t.setTextOrigin(50, 700)
    t.textLine("Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.")
    c.drawText(t)
    c.showPage()
    c.save()
    return response

Answer 1

如果您的文本输入中有 \n，您可以使用 textLines():

t.textLines('''Lorem Ipsum is simply dummy text of the printing and 
typesetting industry. Lorem Ipsum has been the industry's standard dummy text 
ever since the 1500s, when an unknown printer took a galley of type and 
scrambled it to make a type specimen book.''')

如果您的文本是一行，您可以使用 textwrap 模块将其分成多行:

from textwrap import wrap

text = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book."

wraped_text = "\n".join(wrap(text, 80)) # 80 is line width

t.textLines(wraped_text)