title: IOError when loading data file to plot
body: <pre><code>import matplotlib.pyplot as plt
  
  import numpy as np
  
  x,y = np.genfromtxt('D:\Tanjil\Python\directory\Heat Available Datas.csv',unpack=True , delimiter=',',skip_header=0)
  
  plt.plot(x,y,'ro--'),
  
  plt.ylabel('Power Input (kW)'),
  
  plt.xlabel('Speed(rpm)'),
  
  plt.show()
  </code></pre>
  
  <p>but this code shows this error message :</p>
  
  <pre><code>File "C:\Users\bad_tanjil\Anaconda\lib\site-packages\numpy\lib\_datasource.py", line 151, in open
      return ds.open(path, mode)
  
    File "C:\Users\bad_tanjil\Anaconda\lib\site-packages\numpy\lib\_datasource.py", line 501, in open
      raise IOError("%s not found." % path)
  
  IOError: D:\Tanjil\Python\directory\Heat Available Datas.csv not found.
  </code></pre>