title: OSError: Could not find lib geos_c.dll or load any of its variants ['..\Library\\lib\\geos_c.dll']
body: <p>I'm having trouble with geos lib in python. I'm using an anaconda venv with <strong>Python 3.6</strong> on Windows 10. On one computer, it is running. So I exported the venv and installed the venv on another computer (which worked). But on the other computer, the same code is not running. I'm using <strong>geos 3.8.0</strong> and <strong>shapely 1.6.4</strong>. 
  When I run the code, I get the following error:</p>
  
  <pre><code>*File "..\lib\site-packages\shapely\coords.py", line 8, in &lt;module&gt;
      from shapely.geos import lgeos
    File "..\lib\site-packages\shapely\geos.py", line 130, in &lt;module&gt;
      os.path.join(sys.prefix, "Library", "lib", "geos_c.dll"),
    File "..\lib\site-packages\shapely\geos.py", line 56, in load_dll
      libname, fallbacks or []))
  OSError: Could not find lib geos_c.dll or load any of its variants ['..\\Library\\lib\\geos_c.dll']*
  </code></pre>
  
  <p>I already tried:</p>
  
  <ul>
  <li>to reinstall the packages with conda-forge</li>
  <li>use other versions e.g.: geos 3.7.1 and shapely 1.7.0</li>
  <li>copied the geos_c.dll from ..\Library\bin (where it actually exists) to \Library\lib\</li>
  <li>changed the os.path.join in geos.py to  os.path.join(sys.prefix, "Library", "bin", "geos_c.dll")</li>
  </ul>
  
  <p>Does anyone know, how to fix this problem so that I can run the code on both computers?</p>
  
  <p>Thanks in advance!</p>