Revert "StringIO patch"
Revert "StringIO patch"

This reverts commit 487fbae9f2e7870fb460c8f2a71a080a901117dd.

henrysher/urlgrabber,Distrotech/urlgrabber,Distrotech/urlgrabber,Distrotech/urlgrabber,Distrotech/urlgrabber,henrysher/urlgrabber,henrysher/urlgrabber,henrysher/urlgrabber