use Chameleon ZPT templates to write out print statements
I am using Pyramid and I know that this is probably not the preferred way to do things but it would be really cool. I have a bunch of Python scripts which print to stdout. Now I want to run these scripts as part of a request/ response in Pyramid. I mean I want to capture the stdout of the scripts and write it to the template.
The capturing stdout part is pretty easy:
开发者_JAVA技巧import sys
sys.stdout = tbd
As far as I can see render_to_response does not support any of this:
return render_to_response(’templates/foo.pt’,
{’foo’:1, ’bar’:2},
request=request)
Any idea how I can get a write() operation on the template?
I might use the subprocess module to capture the stdout of the script instead of importing it and running it directly:
import StringIO
output = StringIO.StringIO()
result = subprocess.call('python', 'myscript.py', stdout=output)
value = output.get_value()
string = render(’templates/foo.pt’,
{'value':value},
request=request)
You could pass a StringIO.StringIO object to stdout, then also pass it to the template via the context dictionary and just call StringIO.StringIO.getvalue() at the proper times in the template:
import sys
def my_view(request):
old_stdout = sys.stdout
new_stdout = StringIO.StringIO()
sys.stdout = new_stdout
# execute your scripts
sys.stdout = old_stdout
return render_to_response('template/foo.pt', {'foo': 1, 'bar': 2, 'stdout': new_stdout},
request=request)
and then in the template:
<html>
<body>
<!-- stuff -->
${stdout.getvalue()}
<!-- other stuff -->
</body>
</html>
You'll probably need to add a filter to make sure the text is formatted properly, or you might just create a subclass of StringIO.StringIO with an __html__ method that would render things as you see fit.
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