Python dictionary function resulting in syntax error on Linux but not on Windows

Question

I have a line of code that creates a dictionary by setting its key as that of the key of dictionary_b. It then uses the value of that key in dictionary_b as the key to look through dictionary_a to grab the corresponding value.

new_dictionary = {key : dictionary_a.get(value, value) for key, value in dictionary_b.iteritems()}

This compiles fine on Windows however when I try to use compile on Linux I get the following error:

  File "IP_Merger.py", line 46
    new_ip = {key : dictionary_a.get(value, value) for key, value in dictionary_b.iteritems()}
                                                     ^
SyntaxError: invalid syntax

On Windows I am compiling on Python 2.7 and on Linux 2.6.6. Could that be the issue?

yes that is the problem – Padraic Cunningham Jun 24 '15 at 15:11 — Padraic Cunningham, Jun 24 '15 at 15:11

score 3 · Accepted Answer · answered Jun 24 '15 at 15:12

3

Dictionary comprehensions are supported starting in Python 2.7 - see this quesiton for more information.

You can create a dictionary with a generator as follows in python 2.6:

dict((key(s),value(s)) for s in something)

answered Jun 24 '15 at 15:12

Jakob Weisblat

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Python dictionary function resulting in syntax error on Linux but not on Windows

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