title: Series imported but unused error Python
body: <pre><code>import numpy as np
  from pandas import Series, DataFrame
  import pandas as pd
  import matplotlib.pyplot as plt
  
  iris_df = DataFrame()
  
  iris_data_path = 'Z:\WORK\Programming\Python\irisdata.csv'
  
  iris_df = pd.read_csv(iris_data_path,index_col=False,header=None,encoding='utf-8')
  
  iris_df.columns = ['sepal length','sepal width','petal length','petal width','class']
  
  print iris_df.columns.values
  print iris_df.head()
  print iris_df.tail()
  irisX = irisdata[['sepal length','sepal width','petal length','petal width']]
  print irisX.tail()
  irisy = irisdata['class']
  print irisy.head()
  print irisy.tail()
  
  colors = ['red','green','blue']
  markers = ['o','&gt;','x']
  
  irisyn = np.where(irisy=='Iris-setosa',0,np.where(irisy=='Iris-virginica',2,1))
  
  Col0 = irisdata['sepal length']
  Col1 = irisdata['sepal width']
  Col2 = irisdata['petal length']
  Col3 = irisdata['petal width']
  
  plt.figure(num=1,figsize=(16,10))
  plt.subplot(2,3.1)
  for i in range(len(colors)):
      xs = Col0[irisyn==i]
      xy = Col1[irisyn==i]
      plt.scatter(xs,xy,color=colors[i],marker=markers[i])
  plt.legend( ('Iris-setosa', 'Iris-versicolor', 'Iris-virginica') )
  plt.xlabel(irisdata.columns[0])
  plt.ylabel(irisdata.columns[1])
  
  plt.subplot(2,3,2)
  for i in range(len(colors)):
      xs = Col0[irisyn==i]
      xy = Col2[irisyn==i]
      plt.scatter(xs,xy,color=colors[i],marker=markers[i])
  plt.xlabel(irisdata.columns[0])
  plt.ylabel(irisdata.columns[2])
  
  plt.subplot(2,3,3)
  for i in range(len(colors)):
      xs = Col0[irisyn==i]
      xy = Col3[irisyn==i]
      plt.scatter(xs,xy,color=colors[i],marker=markers[i])
  plt.xlabel(irisdata.columns[0])
  plt.ylabel(irisdata.columns[3])
  
  plt.subplot(2,3,4)
  for i in range(len(colors)):
      xs = Col1[irisyn==i]
      xy = Col2[irisyn==i]
      plt.scatter(xs,xy,color=colors[i],marker=markers[i])
  plt.xlabel(irisdata.columns[1])
  plt.ylabel(irisdata.columns[2])
  
  plt.subplot(2,3,5)
  for i in range(len(colors)):
      xs = Col1[irisyn==i]
      xy = Col3[irisyn==i]
      plt.scatter(xs,xy,color=colors[i],marker=markers[i])
  plt.xlabel(irisdata.columns[1])
  plt.ylabel(irisdata.columns[3])
  
  plt.subplot(2,3,6)
  for i in range(len(colors)):
      xs = Col2[irisyn==i]
      xy = Col3[irisyn==i]
      plt.scatter(xs,xy,color=colors[i],marker=markers[i])
  plt.xlabel(irisdata.columns[2])
  plt.ylabel(irisdata.columns[3])
  plt.show()
  </code></pre>
  
  <p>This is code from Howard Bandy's book Quantitative Technical Analysis. The problem is that it is giving me errors even though I typed it out exactly like it is in the book.</p>
  
  <p>I still get the series imported but unused and undefined name irisdata errors/warnings.</p>
  
  <p>This is in the console:</p>
  
  <p>Code:</p>
  
  <pre><code>  runfile('Z:/WORK/Programming/Python/Scripts/irisplotpairsdata2.py', wdir='//AMN/annex/WORK/Programming/Python/Scripts')
  ['sepal length' 'sepal width' 'petal length' 'petal width' 'class']
     sepal length  sepal width  petal length  petal width        class
  0           5.1          3.5           1.4          0.2  Iris-setosa
  1           4.9          3.0           1.4          0.2  Iris-setosa
  2           4.7          3.2           1.3          0.2  Iris-setosa
  3           4.6          3.1           1.5          0.2  Iris-setosa
  4           5.0          3.6           1.4          0.2  Iris-setosa
       sepal length  sepal width  petal length  petal width           class
  145           6.7          3.0           5.2          2.3  Iris-virginica
  146           6.3          2.5           5.0          1.9  Iris-virginica
  147           6.5          3.0           5.2          2.0  Iris-virginica
  148           6.2          3.4           5.4          2.3  Iris-virginica
  149           5.9          3.0           5.1          1.8  Iris-virginica
  Traceback (most recent call last):
  
    File "&lt;ipython-input-100-f0b2002668bd&gt;", line 1, in &lt;module&gt;
      runfile('Z:/WORK/Programming/Python/Scripts/irisplotpairsdata2.py', wdir='//AMN/annex/WORK/Programming/Python/Scripts')
  
    File "C:\MyPrograms\Spyder(Python)\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 685, in runfile
      execfile(filename, namespace)
  
    File "C:\MyPrograms\Spyder(Python)\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 71, in execfile
      exec(compile(scripttext, filename, 'exec'), glob, loc)
  
    File "Z:/WORK/Programming/Python/Scripts/irisplotpairsdata2.py", line 24, in &lt;module&gt;
      irisX = irisdata[['sepal length','sepal width','petal length','petal width']]
  
  TypeError: list indices must be integers, not list
  </code></pre>
  
  <p>Obviously, the program does not run.</p>
  
  <p>I'm using spyder with python 2.7. Which is the platform he was using in the book.</p>
  
  <p>Thanks for any insight.</p>