title: Struggling to import modules from scipy
body: <p>I'm having some trouble using the mannwhitneyu test provided by scipy. I think my problem is with importing. Here is my script:</p>
  
  <pre><code>SNPs=[]
  Nonsense=[]
  
  with open("final_positions_SNP_removed_duplicates_truepos_truetrans_normalized.txt") as fd:
      fd.readline()
      for line in fd:
          SNPs.append(line.split()[8])
  
  with open("final_positions_nonsense_truepos_truetrans_normalized.txt") as fd:
      fd.readline()
      for line in fd:
          Nonsense.append(line.split()[8])
  
  from scipy import stats
  from scipy.stats import mannwhitneyu
  u_value, p_value = scipy.stats.mannwhitneyu(SNPs, Nonsense)
  </code></pre>
  
  <p>I keep getting an error that states: <code>NameError: name 'scipy' is not defined</code> I think I need to import scipy, but how?</p>