python source block weirdness

[Brad Knotwell <bknotwell@yahoo.com>]

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Good day all--
I've been reading on the mailing list and web about this but it's entirely unclear to me what I need to do to make this work.  I have a minimal example below to show what I'm fighting.
The raw/generated documents below show the problem clearly as the second block doesn't run correctly.  Looking in the session, it receives an "unexpected indent" error which is unreasonable as I can paste that code into Python's REPL and get an expected result.
Looking around a bit, people were seeing this 4-5 years ago but I haven't been able to find anything since.  Relevant version info:  9.2 orgmode, High Sierra OSX, and 2.7.10 Python.
Thx.
--Brad
#+NAME: works#+begin_src python :session broken :exports boths = 3t = 4'result = %d' % (s + t)#+end_src
Working result below:#+RESULTS: works

#+NAME: surprise#+begin_src python :session broken :exports bothtry:    'hi'except:    'there'#+end_src
Surprising result (AKA nothing) below:#+RESULTS: surprise
leads to the following output:
,----| s = 3| t = 4| 'result = %d' % (s + t)`----
Working result below:,----| result = 7`----


,----| try:|     'hi'| except:|     'there'`----
Surprising result (AKA nothing) below:


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