How to use the pyexiv2.version_info function in pyexiv2

#####################################################################
# pyexiv2 download page (C) Olivier Tilloy
_DOWNLOAD_LINK = "http://tilloy.net/dev/pyexiv2/download.html"

# make sure the pyexiv2 library is installed and at least a minimum version
software_version = False
Min_VERSION = (0, 1, 3)
Min_VERSION_str = "pyexiv2-%d.%d.%d" % Min_VERSION
Pref_VERSION_str = "pyexiv2-%d.%d.%d" % (0, 3, 0)

# to be able for people that have pyexiv2-0.1.3 to be able to use this addon also...
LesserVersion = False

try:
    import pyexiv2
    software_version = pyexiv2.version_info

except ImportError, msg:
    WarningDialog(_("You need to install, %s or greater, for this addon to work...\n"
                    "I would recommend installing, %s, and it may be downloaded from here: \n%s") % (
                        Min_VERSION_str, Pref_VERSION_str, _DOWNLOAD_LINK), str(msg))
    raise Exception(_("Failed to load 'Image Metadata Gramplet'..."))
               
# This only happends if the user has pyexiv2-0.1.3 installed on their computer...
except AttributeError:
    LesserVersion = True

# the library is either not installed or does not meet minimum required version for this addon....
if (software_version and (software_version < Min_VERSION)):
    msg = _("The minimum required version for pyexiv2 must be %s \n"
        "or greater.  Or you do not have the python library installed yet.  "
        "You may download it from here: %s\n\n  I recommend getting, %s") % (

# pyexiv2 download page (C) Olivier Tilloy
_DOWNLOAD_LINK = "http://tilloy.net/dev/pyexiv2/download.html"

# make sure the pyexiv2 library is installed and at least a minimum version
software_version = False
Min_VERSION = (0, 1, 3)
Min_VERSION_str = "pyexiv2-%d.%d.%d" % Min_VERSION
Pref_VERSION_str = "pyexiv2-%d.%d.%d" % (0, 3, 0)

# for users of pyexiv2 prior to 0.2.0...
LesserVersion = False

try:
    import pyexiv2
    software_version = pyexiv2.version_info

except ImportError, msg:
    WarningDialog( str(msg) )
    raise Exception(_("Failed to load 'Image Metadata Gramplet/ Addon'..."))
               
# This only happens if the user has prior than pyexiv2-0.2.0 installed on their computer...
# it requires the use of a few different things, which you will see when this variable is called...
except AttributeError:
    LesserVersion = True

# the library is either not installed or does not meet 
# minimum required version for this addon....
if (software_version and (software_version < Min_VERSION)):
    msg = _("The minimum required version for pyexiv2 must be %s \n"
        "or greater.  Or you do not have the python library installed yet.  "
        "You may download it from here: %s\n\n  I recommend getting, %s") % (

#------------------------------------------------
import gtk

from gen.ggettext import gettext as _

# import the pyexiv2 library classes for this addon
_DOWNLOAD_LINK = "http://tilloy.net/dev/pyexiv2/"
pyexiv2_required = True
Min_VERSION_str = "pyexiv2-%d.%d.%d" % (0, 1, 3)
LesserVersion = False
Min_VERSION = (0, 1, 3)
PrefVersion_str = "pyexiv2-%d.%d.%d" % (0, 3, 0)

try:
    import pyexiv2
    if pyexiv2.version_info < Min_VERSION:
        pyexiv2_required = False

except ImportError:
    raise Exception((_("The python binding library, pyexiv2, to exiv2 is not "
        "installed on this computer.\n It can be downloaded from here: %s\n\n"
        "You will need to download at least %s .  I recommend that you download "
        "and install, %s .") % ( _DOWNLOAD_LINK, Min_VERSION_str, PrefVersion_str)).encode(sys.getfilesystemencoding()) )
               
except AttributeError:
    LesserVersion = True

if not pyexiv2_required:
    raise Exception((_("The minimum required version for pyexiv2 must be %s \n"
        "or greater.  You may download it from here: %s\n\n  I recommend getting, "
        "%s .") % ( Min_VERSION_str, _DOWNLOAD_LINK, PrefVersion_str).encode(sys.getfilesystemencoding())) )

if repository.enumerate_versions("OsmGpsMap"):
            from gi.repository import OsmGpsMap as osmgpsmap
            try:
                osmgpsmap_str = osmgpsmap._version
            except :# any failure to 'get' the version
                osmgpsmap_str = 'unknown version'
        else:
            osmgpsmap_str = 'not found'

    except ImportError:
        osmgpsmap_str = 'not found'

    try:
        import pyexiv2
        try:
            pyexiv2_str = '%d.%d.%d' % pyexiv2.version_info 
        except :# any failure to 'get' the version
            pyexiv2_str = 'unknown version'

    except ImportError:
        pyexiv2_str = 'not found'

    from gen.config import config
    usebsddb3 = config.get('preferences.use-bsddb3')
    try:
        if usebsddb3:
            import bsddb3 as bsddb
        else:
            import bsddb
        bsddb_str = bsddb.__version__
        bsddb_db_str = str(bsddb.db.version())
    except: