小编use*_*707的帖子

以下代码给出错误:

Traceback (most recent call last):
  File "pdf.py", line 14, in <module>
    create_pdf(render_template('templates.htm'))
  File "/usr/local/lib/python2.7/dist-packages/flask/templating.py", line 123, in render_template
    ctx.app.update_template_context(context)
AttributeError: 'NoneType' object has no attribute 'app'

码:

from xhtml2pdf import pisa
from StringIO import StringIO
from flask import render_template,Flask

app=Flask(__name__)
app.debug=True

@app.route("/")
def create_pdf(pdf_data):
        filename= "file.pdf"
        pdf=pisa.CreatePDF( StringIO(pdf_data),file(filename, "wb"))

if __name__ == "__main__":
        create_pdf(render_template('templates.htm'))