improve arguments for relative '__import__()'
using None for 'fromlist' is slightly faster than an empty tuple
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@@ -27,7 +27,7 @@ def find(scheme):
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scheme = "http"
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if scheme in modules: # prevent unwanted imports
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try:
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module = __import__(scheme, globals(), None, (), 1)
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module = __import__(scheme, globals(), None, None, 1)
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except ImportError:
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pass
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else:
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