##// END OF EJS Templates
Major restructuring of magics, breaking them up into separate classes....
Major restructuring of magics, breaking them up into separate classes. This is the first step to get the new magic architecture in place, with a new base class for magic functions. At this point IPython does *not* run, but the changes are extensive enough to warrant intermediate non-working commits.

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importstring.py
47 lines | 1.6 KiB | text/x-python | PythonLexer
# encoding: utf-8
"""
A simple utility to import something by its string name.
Authors:
* Brian Granger
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2008-2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Functions and classes
#-----------------------------------------------------------------------------
def import_item(name):
"""Import and return bar given the string foo.bar."""
package = '.'.join(name.split('.')[0:-1])
obj = name.split('.')[-1]
# Note: the original code for this was the following. We've left it
# visible for now in case the new implementation shows any problems down
# the road, to make it easier on anyone looking for a problem. This code
# should be removed once we're comfortable we didn't break anything.
## execString = 'from %s import %s' % (package, obj)
## try:
## exec execString
## except SyntaxError:
## raise ImportError("Invalid class specification: %s" % name)
## exec 'temp = %s' % obj
## return temp
if package:
module = __import__(package,fromlist=[obj])
try:
pak = module.__dict__[obj]
except KeyError:
raise ImportError('No module named %s' % obj)
return pak
else:
return __import__(obj)