The standard library, my personal code, third-party packages, and my employer's
code base are filled with examples of the following pattern:
try:
import threading
except ImportError:
import dummy_threading as threading
try:
import xml.etree.cElementTree as ET
except ImportError:
try:
import cElementTree as ET
except ImportError:
import elementtree.ElementTree as ET
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
try:
import readline
except ImportError:
pass
How about a new, simpler syntax:
* import threading or dummy_threading as threading
* import xml.etree.CElementTree or cElementTree or elementree.ElementTree as ET
* from cStringIO or StringIO import StringIO
* import readline or emptymodule
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