running python StringIO files

Question

I want to run a memfile done with StringIO. Is there any possibility for doing it? something like this:

import StringIO

memfile = StringIO.StringIO()
memfile.write("print 'hello world'")

#with diskfiles I would do:
#os.system('python memfile') ?
#subprocess.Popen('memfile', shell=True)
memfile.close()

And what would the memory file contain to run? Python code, bash scripts, binary executables? — Martijn Pieters, Jun 05 '13 at 15:16
The example content written to the `memfile` looks like Python code to me — piokuc, Jun 05 '13 at 15:19
I solved it with exec memfile.getvalue() and it works with multiline file, for example memfile content "a = 0\nb=1\nprint a+b" thanks — Germán Jiménez, Jun 05 '13 at 16:29

piokuc · Answer 1 · 2013-06-05T18:23:12.630

0

This should work:

eval(memfile.open().read())

EDIT:

It turns out exec is needed, as eval accepts expressions only:

exec memfile

edited Jun 05 '13 at 18:23

answered Jun 05 '13 at 15:18

piokuc

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it don't work because print is a statement not an expresion, but you gave me a clue, exec memfile.getvalue() works, thanks! – Germán Jiménez Jun 05 '13 at 16:22

running python StringIO files

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