title: PyDev import times are 10x slower than using command line
body: <p>I'm new to python and using PyDev with Eclipse I noticed excruciatingly slow startup time whenever I try to execute the code I'm working on. I narrowed this down to libraries import. </p>
  
  <p>For example if I run the following code</p>
  
  <pre><code>import timeit
  startTime = timeit.default_timer()
  
  import numpy as np
  print("loaded numpy: ", timeit.default_timer() - startTime)
  
  import pandas as pd
  print("loaded pandas: ", timeit.default_timer() - startTime)
  
  from pandas import ExcelWriter
  print("loaded sub-pandas 1: ", timeit.default_timer() - startTime)
  
  from pandas import DataFrame
  print("loaded sub-pandas 2: ", timeit.default_timer() - startTime)
  
  import timeit
  print("loaded timeit: ", timeit.default_timer() - startTime)
  
  from sqlalchemy.sql.expression import false
  print("loaded sqlalchemy: ", timeit.default_timer() - startTime)
  
  import os
  print("loaded os: ", timeit.default_timer() - startTime)
  </code></pre>
  
  <p>It will benchmark time for PyDev as:</p>
  
  <pre><code>    loaded numpy:  6.791420515378803
      loaded pandas:  13.315319435084618
      loaded sub-pandas 1:  13.31538835744522
      loaded sub-pandas 2:  13.315418989605488
      loaded timeit:  13.315443057731413
      loaded sqlalchemy:  13.668371856921556
      loaded os:  13.668398113058927
  </code></pre>
  
  <p>while with command line execution it will be:</p>
  
  <pre><code>loaded numpy:  1.6967744335238362
  loaded pandas:  3.7941380255968165
  loaded sub-pandas 1:  3.7944563812624534
  loaded sub-pandas 2:  3.795081787867914
  loaded timeit:  3.795144146194173
  loaded sqlalchemy:  3.915562085554165
  loaded os:  3.915884087905548
  </code></pre>
  
  <p>Can anybody help with getting to the bottom of this? Even with the command line option 4s for loading a couple of standard libraries seems to be an overkill.</p>
  
  <p>Thank you!</p>