Python 2.7.12 |Anaconda 4.1.1 (64-bit)| (default, Jul 2 2016, 17:42:40) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2 Type "help", "copyright", "credits" or "license" for more information. Anaconda is brought to you by Continuum Analytics. Please check out: http://continuum.io/thanks and https://anaconda.org
>>> from sympy import symbols
>>> from sympy.plotting import plot
>>> L = [2+2j, 3+2j, 1.75+1j, 2+1j, 2.25+1j, 2.5+1j, 2.75+1j, 3.25+1j]
>>> plot(L)
Traceback (most recent call last): File "", line 1, in File "/home/txdo07r/anaconda2/lib/python2.7/site-packages/sympy/plotting/plot.py", line 1280, in plot series = [LineOver1DRangeSeries(*arg, **kwargs) for arg in plot_expr] TypeError: 'NoneType' object is not iterable