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Viewing changes to external/sqlobject/util/moduleloader.py

  • Committer: jdahlin
  • Date: 2006-09-18 16:01:22 UTC
  • Revision ID: vcs-imports@canonical.com-20060918160122-umda7g8dx7bdc53m
Add an external directory with formencode and SQLObject forks, remove SQLObject dependency from documentation and setup.py. Install externals and set sys.path in stoqlib/__init__.py

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external/sqlobject/util/moduleloader.py
 
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import sys
 
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import imp
 
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def load_module(module_name):
 
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    mod = __import__(module_name)
 
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    components = module_name.split('.')
 
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    for comp in components[1:]:
 
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        mod = getattr(mod, comp)
 
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    return mod
 
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def load_module_from_name(filename, module_name):
 
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    if sys.modules.has_key(module_name):
 
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        return sys.modules[module_name]
 
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    init_filename = os.path.join(os.path.dirname(filename), '__init__.py')
 
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    if not os.path.exists(init_filename):
 
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        try:
 
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            f = open(init_filename, 'w')
 
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        except (OSError, IOError), e:
 
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            raise IOError(
 
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                'Cannot write __init__.py file into directory %s (%s)\n'
 
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                % (os.path.dirname(filename), e))
 
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        f.write('#\n')
 
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        f.close()
 
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    fp = None
 
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    if sys.modules.has_key(module_name):
 
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        return sys.modules[module_name]
 
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    if '.' in module_name:
 
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        parent_name = '.'.join(module_name.split('.')[:-1])
 
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        base_name = module_name.split('.')[-1]
 
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        parent = load_module_from_name(os.path.dirname(filename),
 
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                                       parent_name)
 
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    else:
 
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        base_name = module_name
 
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    fp = None
 
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    try:
 
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        fp, pathname, stuff = imp.find_module(
 
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            base_name, [os.path.dirname(filename)])
 
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        module = imp.load_module(module_name, fp, pathname, stuff)
 
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    finally:
 
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        if fp is not None:
 
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            fp.close()
 
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    return module