CODEWITHSUNDEEP
pythonbunch
4Oh4
4Oh4

Reputation: 2171

Determining Python version with platform.version

I'm trying to run a Python package (ig-markets-api-python-library, it has a share price streaming function), which I've had running before, and am loosing my mind trying to figure out why I can't get it working again. This might be a bit of a noob question, so thanks for the help. I'm running Python 3.5.1 with Anaconda 2.4.1 (64-bit), and I run into the error below:

Traceback (most recent call last):
  File "setupStreamer.py", line 8, in <module>
    import ig_streamer
  File "/ig-tools-python/ig_streamer.py", line 13, in <module>
    from trading_ig import (IGService, IGStreamService)
  File "/opt/conda/lib/python3.5/site-packages/trading_ig/__init__.py", line 17, in <module>
    from .rest import IGService
  File "/opt/conda/lib/python3.5/site-packages/trading_ig/rest.py", line 15, in <module>
    from .utils import (_HAS_PANDAS, _HAS_BUNCH)
  File "/opt/conda/lib/python3.5/site-packages/trading_ig/utils.py", line 21, in <module>
    from infi.bunch import bunchify
  File "/opt/conda/lib/python3.5/site-packages/infi/bunch/__init__.py", line 31, in <module>
    from .python3_compat import *
  File "/opt/conda/lib/python3.5/site-packages/infi/bunch/python3_compat.py", line 20, in <module>
    iteritems = dict.iteritems

AttributeError: type object 'dict' has no attribute 'iteritems'

So the error is arising because the bunch module is trying to call the iteritems method, but that's a Python 2 method. Looking at the code for python3_compat.py from bunch, it identifies the Python version using the the version() method from plaform, but _IS_PYTHON_3 is always false:

import platform

_IS_PYTHON_3 = (platform.version() >= '3')

...
# dict.iteritems(), dict.iterkeys() is also incompatible
if _IS_PYTHON_3:
    iteritems = dict.items
    iterkeys  = dict.keys
else:
    iteritems = dict.iteritems
    iterkeys = dict.iterkeys

On my machine, platform.version() returns information about my operating system:

 >>> import platform
 >>> platform.version()
 '#48~14.04.1-Ubuntu SMP Fri Dec 18 10:24:49 UTC 2015'

... and that is in-line with the platform docs. Surely I'm missing something here? Can this code ever work?

Upvotes: 0

Views: 787

Answers (3)

Gilberto
Gilberto

Reputation: 863

Confirm: under Ubuntu, pip install trading_ig does install an old version. Under Mac it does not occur.

So the right way to install the module is:

(only if you have already installed the module with pip)

$ pip uninstall trading_ig

(and then)

$ git clone https://github.com/ig-python/ig-markets-api-python-library
$ cd ig-markets-rest-api-python-library
$ python setup.py install

Upvotes: 2

malbarbo
malbarbo

Reputation: 11177

You should change:

import platform

_IS_PYTHON_3 = (platform.version() >= '3')

to:

import sys

_IS_PYTHON_3 = (sys.version >= '3')

Upvotes: 2

Alex Hall
Alex Hall

Reputation: 36033

Looks like they got a bit confused.

>>> platform.python_version()
'2.7.10'

Upvotes: 1

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