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# Copyright 2007-2008 Nanorex, Inc. See LICENSE file for details.
"""
EndUser.py
Some program features are intended specifically for developers, and
are best left disabled for end users. Examples might be debugging
prints, and the ability to reload a changed module. Such code is
wrapped with a test which calls enableDeveloperFeatures() here.
Early in startup, setDeveloperFeatures() should be called after
detecting whether this is an end user or developer run. Until this is
called, enableDeveloperFeatures() will default to False, indicating
an end user run (but will print a bug warning if it's ever called then).
@author: Eric Messick
@version: $Id$
@copyright: 2007-2008 Nanorex, Inc. See LICENSE file for details.
@license: GPL
"""
_developerFeatures = False
_developerFeatures_set_yet = False
def enableDeveloperFeatures():
"""
Returns True if developer features should be enabled.
Call this to see if you should enable a particular developer feature.
"""
if not _developerFeatures_set_yet:
print "bug: enableDeveloperFeatures() queried before " \
" setDeveloperFeatures() called; returning %r" % \
_developerFeatures
return _developerFeatures
def setDeveloperFeatures(developerFeatures):
"""
Called at startup once we figure out whether this is a developer run
or an end user run.
"""
global _developerFeatures, _developerFeatures_set_yet
_developerFeatures = developerFeatures
_developerFeatures_set_yet = True
return
_alternateSourcePath = None
def getAlternateSourcePath():
"""
Returns the path to a directory other than the one main.py was
found in, which will be searched first for any imports, or None if
not set. Allows users to override any python files without
modifing the released copies.
"""
return _alternateSourcePath
def setAlternateSourcePath(path):
"""
Called from main.py after adding the alternate source path to the
front of the search path, but before importing any files that
might be affected by that. Should not be called by any other code.
Allows other code to determine if this has been done, and to
obtain the value via getAlternateSourcePath().
"""
global _alternateSourcePath
assert _alternateSourcePath is None
_alternateSourcePath = path
return
# end
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