I get the same when I try to install lxml
Microsoft Windows [Version 6.1.7601]
Copyright © 2009 Microsoft Corporation. All rights reserved.
C:\Users\renny and kite>cd c:\Python2.7\Scripts
c:\Python2.7\Scripts>pip install lxml-3.6.4-cp27-cp27m-win_amd64.whl
Fatal error in launcher: Unable to create process using '"'
c:\Python2.7\Scripts>
same thing
c:\Python2.7\Scripts>pip install --upgrade pip
Fatal error in launcher: Unable to create process using '"'
c:\Python2.7\Scripts>
Microsoft Windows [Version 6.1.7601]
Copyright © 2009 Microsoft Corporation. All rights reserved.
C:\Users\renny and kite>cd c:\Python2.7\Scripts
c:\Python2.7\Scripts>pip install lxml-3.6.4-cp27-cp27m-win_amd64.whl
Fatal error in launcher: Unable to create process using '"'
c:\Python2.7\Scripts>
same thing
c:\Python2.7\Scripts>pip install --upgrade pip
Fatal error in launcher: Unable to create process using '"'
c:\Python2.7\Scripts>