title: how to fix "OSError: [WinError 193] %1 is not a valid Win32 application"
body: <p>I am trying to get along with pandas.
  I am learning Python using Thonny as IDLE. I installed pandas using the pip command in my cmd. Somehow i couldnt import pandas method in my IDLE, therefore i added it as package through settings. 
  Problem is: when I try running following code, i only get the error in jupyter notebook and my cmd, but not in the thonny IDLE. </p>
  
  <pre><code>import pandas as pd
  df = pd.read_csv("pokemon_data.csv")
  print(df)
  
  Out(Cmd):
  Traceback (most recent call last):
    File "pokemonData.py", line 1, in &lt;module&gt;
      import pandas as pd
    File "C:\Users\pc\AppData\Roaming\Python\Python37\site-packages\pandas\__init_
  _.py", line 13, in &lt;module&gt;
      __import__(dependency)
    File "C:\Users\pc\AppData\Roaming\Python\Python37\site-packages\numpy\__init__
  .py", line 142, in &lt;module&gt;
      from . import core
    File "C:\Users\pc\AppData\Roaming\Python\Python37\site-packages\numpy\core\__i
  nit__.py", line 23, in &lt;module&gt;
      WinDLL(os.path.abspath(filename))
    File "C:\Users\pc\AppData\Local\Programs\Python\Python37\lib\ctypes\__init__.p
  y", line 356, in __init__
      self._handle = _dlopen(self._name, mode)
  OSError: [WinError 193] %1 ist keine zulässige Win32-Anwendung
  
  Out(jupyter notebook):
  OSError                                   Traceback (most recent call last)
  &lt;ipython-input-1-686db4b56d1d&gt; in &lt;module&gt;
        1 
  ----&gt; 2 import pandas as pd
        3 
        4 df = pd.read_csv("pokemon_data.csv")
        5 
  
  ~\AppData\Roaming\Python\Python37\site-packages\pandas\__init__.py in &lt;module&gt;
       11 for dependency in hard_dependencies:
       12     try:
  ---&gt; 13         __import__(dependency)
       14     except ImportError as e:
       15         missing_dependencies.append(dependency)
  
  ~\AppData\Roaming\Python\Python37\site-packages\numpy\__init__.py in &lt;module&gt;
      140     from . import _distributor_init
      141 
  --&gt; 142     from . import core
      143     from .core import *
      144     from . import compat
  
  ~\AppData\Roaming\Python\Python37\site-packages\numpy\core\__init__.py in &lt;module&gt;
       21             # NOTE: would it change behavior to load ALL
       22             # DLLs at this path vs. the name restriction?
  ---&gt; 23             WinDLL(os.path.abspath(filename))
       24             DLL_filenames.append(filename)
       25     if len(DLL_filenames) &gt; 1:
  
  c:\users\pc\appdata\local\programs\python\python37\lib\ctypes\__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error)
      354 
      355         if handle is None:
  --&gt; 356             self._handle = _dlopen(self._name, mode)
      357         else:
      358             self._handle = handle
  
  OSError: [WinError 193] %1 ist keine zulässige Win32-Anwendung
  </code></pre>