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      1 """distutils.command.install
      2 
      3 Implements the Distutils 'install' command."""
      4 
      5 from distutils import log
      6 
      7 # This module should be kept compatible with Python 2.1.
      8 
      9 __revision__ = "$Id$"
     10 
     11 import sys, os, string
     12 from types import *
     13 from distutils.core import Command
     14 from distutils.debug import DEBUG
     15 from distutils.sysconfig import get_config_vars
     16 from distutils.errors import DistutilsPlatformError
     17 from distutils.file_util import write_file
     18 from distutils.util import convert_path, subst_vars, change_root
     19 from distutils.util import get_platform
     20 from distutils.errors import DistutilsOptionError
     21 from site import USER_BASE
     22 from site import USER_SITE
     23 
     24 
     25 if sys.version < "2.2":
     26     WINDOWS_SCHEME = {
     27         'purelib': '$base',
     28         'platlib': '$base',
     29         'headers': '$base/Include/$dist_name',
     30         'scripts': '$base/Scripts',
     31         'data'   : '$base',
     32     }
     33 else:
     34     WINDOWS_SCHEME = {
     35         'purelib': '$base/Lib/site-packages',
     36         'platlib': '$base/Lib/site-packages',
     37         'headers': '$base/Include/$dist_name',
     38         'scripts': '$base/Scripts',
     39         'data'   : '$base',
     40     }
     41 
     42 INSTALL_SCHEMES = {
     43     'unix_prefix': {
     44         'purelib': '$base/lib/python$py_version_short/site-packages',
     45         'platlib': '$platbase/lib/python$py_version_short/site-packages',
     46         'headers': '$base/include/python$py_version_short/$dist_name',
     47         'scripts': '$base/bin',
     48         'data'   : '$base',
     49         },
     50     'unix_home': {
     51         'purelib': '$base/lib/python',
     52         'platlib': '$base/lib/python',
     53         'headers': '$base/include/python/$dist_name',
     54         'scripts': '$base/bin',
     55         'data'   : '$base',
     56         },
     57     'unix_user': {
     58         'purelib': '$usersite',
     59         'platlib': '$usersite',
     60         'headers': '$userbase/include/python$py_version_short/$dist_name',
     61         'scripts': '$userbase/bin',
     62         'data'   : '$userbase',
     63         },
     64     'nt': WINDOWS_SCHEME,
     65     'nt_user': {
     66         'purelib': '$usersite',
     67         'platlib': '$usersite',
     68         'headers': '$userbase/Python$py_version_nodot/Include/$dist_name',
     69         'scripts': '$userbase/Scripts',
     70         'data'   : '$userbase',
     71         },
     72     'os2': {
     73         'purelib': '$base/Lib/site-packages',
     74         'platlib': '$base/Lib/site-packages',
     75         'headers': '$base/Include/$dist_name',
     76         'scripts': '$base/Scripts',
     77         'data'   : '$base',
     78         },
     79     'os2_home': {
     80         'purelib': '$usersite',
     81         'platlib': '$usersite',
     82         'headers': '$userbase/include/python$py_version_short/$dist_name',
     83         'scripts': '$userbase/bin',
     84         'data'   : '$userbase',
     85         },
     86     }
     87 
     88 # The keys to an installation scheme; if any new types of files are to be
     89 # installed, be sure to add an entry to every installation scheme above,
     90 # and to SCHEME_KEYS here.
     91 SCHEME_KEYS = ('purelib', 'platlib', 'headers', 'scripts', 'data')
     92 
     93 
     94 class install (Command):
     95 
     96     description = "install everything from build directory"
     97 
     98     user_options = [
     99         # Select installation scheme and set base director(y|ies)
    100         ('prefix=', None,
    101          "installation prefix"),
    102         ('exec-prefix=', None,
    103          "(Unix only) prefix for platform-specific files"),
    104         ('home=', None,
    105          "(Unix only) home directory to install under"),
    106         ('user', None,
    107          "install in user site-package '%s'" % USER_SITE),
    108 
    109         # Or, just set the base director(y|ies)
    110         ('install-base=', None,
    111          "base installation directory (instead of --prefix or --home)"),
    112         ('install-platbase=', None,
    113          "base installation directory for platform-specific files " +
    114          "(instead of --exec-prefix or --home)"),
    115         ('root=', None,
    116          "install everything relative to this alternate root directory"),
    117 
    118         # Or, explicitly set the installation scheme
    119         ('install-purelib=', None,
    120          "installation directory for pure Python module distributions"),
    121         ('install-platlib=', None,
    122          "installation directory for non-pure module distributions"),
    123         ('install-lib=', None,
    124          "installation directory for all module distributions " +
    125          "(overrides --install-purelib and --install-platlib)"),
    126 
    127         ('install-headers=', None,
    128          "installation directory for C/C++ headers"),
    129         ('install-scripts=', None,
    130          "installation directory for Python scripts"),
    131         ('install-data=', None,
    132          "installation directory for data files"),
    133 
    134         # Byte-compilation options -- see install_lib.py for details, as
    135         # these are duplicated from there (but only install_lib does
    136         # anything with them).
    137         ('compile', 'c', "compile .py to .pyc [default]"),
    138         ('no-compile', None, "don't compile .py files"),
    139         ('optimize=', 'O',
    140          "also compile with optimization: -O1 for \"python -O\", "
    141          "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
    142 
    143         # Miscellaneous control options
    144         ('force', 'f',
    145          "force installation (overwrite any existing files)"),
    146         ('skip-build', None,
    147          "skip rebuilding everything (for testing/debugging)"),
    148 
    149         # Where to install documentation (eventually!)
    150         #('doc-format=', None, "format of documentation to generate"),
    151         #('install-man=', None, "directory for Unix man pages"),
    152         #('install-html=', None, "directory for HTML documentation"),
    153         #('install-info=', None, "directory for GNU info files"),
    154 
    155         ('record=', None,
    156          "filename in which to record list of installed files"),
    157         ]
    158 
    159     boolean_options = ['compile', 'force', 'skip-build', 'user']
    160     negative_opt = {'no-compile' : 'compile'}
    161 
    162 
    163     def initialize_options (self):
    164 
    165         # High-level options: these select both an installation base
    166         # and scheme.
    167         self.prefix = None
    168         self.exec_prefix = None
    169         self.home = None
    170         self.user = 0
    171 
    172         # These select only the installation base; it's up to the user to
    173         # specify the installation scheme (currently, that means supplying
    174         # the --install-{platlib,purelib,scripts,data} options).
    175         self.install_base = None
    176         self.install_platbase = None
    177         self.root = None
    178 
    179         # These options are the actual installation directories; if not
    180         # supplied by the user, they are filled in using the installation
    181         # scheme implied by prefix/exec-prefix/home and the contents of
    182         # that installation scheme.
    183         self.install_purelib = None     # for pure module distributions
    184         self.install_platlib = None     # non-pure (dists w/ extensions)
    185         self.install_headers = None     # for C/C++ headers
    186         self.install_lib = None         # set to either purelib or platlib
    187         self.install_scripts = None
    188         self.install_data = None
    189         self.install_userbase = USER_BASE
    190         self.install_usersite = USER_SITE
    191 
    192         self.compile = None
    193         self.optimize = None
    194 
    195         # These two are for putting non-packagized distributions into their
    196         # own directory and creating a .pth file if it makes sense.
    197         # 'extra_path' comes from the setup file; 'install_path_file' can
    198         # be turned off if it makes no sense to install a .pth file.  (But
    199         # better to install it uselessly than to guess wrong and not
    200         # install it when it's necessary and would be used!)  Currently,
    201         # 'install_path_file' is always true unless some outsider meddles
    202         # with it.
    203         self.extra_path = None
    204         self.install_path_file = 1
    205 
    206         # 'force' forces installation, even if target files are not
    207         # out-of-date.  'skip_build' skips running the "build" command,
    208         # handy if you know it's not necessary.  'warn_dir' (which is *not*
    209         # a user option, it's just there so the bdist_* commands can turn
    210         # it off) determines whether we warn about installing to a
    211         # directory not in sys.path.
    212         self.force = 0
    213         self.skip_build = 0
    214         self.warn_dir = 1
    215 
    216         # These are only here as a conduit from the 'build' command to the
    217         # 'install_*' commands that do the real work.  ('build_base' isn't
    218         # actually used anywhere, but it might be useful in future.)  They
    219         # are not user options, because if the user told the install
    220         # command where the build directory is, that wouldn't affect the
    221         # build command.
    222         self.build_base = None
    223         self.build_lib = None
    224 
    225         # Not defined yet because we don't know anything about
    226         # documentation yet.
    227         #self.install_man = None
    228         #self.install_html = None
    229         #self.install_info = None
    230 
    231         self.record = None
    232 
    233 
    234     # -- Option finalizing methods -------------------------------------
    235     # (This is rather more involved than for most commands,
    236     # because this is where the policy for installing third-
    237     # party Python modules on various platforms given a wide
    238     # array of user input is decided.  Yes, it's quite complex!)
    239 
    240     def finalize_options (self):
    241 
    242         # This method (and its pliant slaves, like 'finalize_unix()',
    243         # 'finalize_other()', and 'select_scheme()') is where the default
    244         # installation directories for modules, extension modules, and
    245         # anything else we care to install from a Python module
    246         # distribution.  Thus, this code makes a pretty important policy
    247         # statement about how third-party stuff is added to a Python
    248         # installation!  Note that the actual work of installation is done
    249         # by the relatively simple 'install_*' commands; they just take
    250         # their orders from the installation directory options determined
    251         # here.
    252 
    253         # Check for errors/inconsistencies in the options; first, stuff
    254         # that's wrong on any platform.
    255 
    256         if ((self.prefix or self.exec_prefix or self.home) and
    257             (self.install_base or self.install_platbase)):
    258             raise DistutilsOptionError, \
    259                   ("must supply either prefix/exec-prefix/home or " +
    260                    "install-base/install-platbase -- not both")
    261 
    262         if self.home and (self.prefix or self.exec_prefix):
    263             raise DistutilsOptionError, \
    264                   "must supply either home or prefix/exec-prefix -- not both"
    265 
    266         if self.user and (self.prefix or self.exec_prefix or self.home or
    267                 self.install_base or self.install_platbase):
    268             raise DistutilsOptionError("can't combine user with prefix, "
    269                                        "exec_prefix/home, or install_(plat)base")
    270 
    271         # Next, stuff that's wrong (or dubious) only on certain platforms.
    272         if os.name != "posix":
    273             if self.exec_prefix:
    274                 self.warn("exec-prefix option ignored on this platform")
    275                 self.exec_prefix = None
    276 
    277         # Now the interesting logic -- so interesting that we farm it out
    278         # to other methods.  The goal of these methods is to set the final
    279         # values for the install_{lib,scripts,data,...}  options, using as
    280         # input a heady brew of prefix, exec_prefix, home, install_base,
    281         # install_platbase, user-supplied versions of
    282         # install_{purelib,platlib,lib,scripts,data,...}, and the
    283         # INSTALL_SCHEME dictionary above.  Phew!
    284 
    285         self.dump_dirs("pre-finalize_{unix,other}")
    286 
    287         if os.name == 'posix':
    288             self.finalize_unix()
    289         else:
    290             self.finalize_other()
    291 
    292         self.dump_dirs("post-finalize_{unix,other}()")
    293 
    294         # Expand configuration variables, tilde, etc. in self.install_base
    295         # and self.install_platbase -- that way, we can use $base or
    296         # $platbase in the other installation directories and not worry
    297         # about needing recursive variable expansion (shudder).
    298 
    299         py_version = (string.split(sys.version))[0]
    300         (prefix, exec_prefix) = get_config_vars('prefix', 'exec_prefix')
    301         self.config_vars = {'dist_name': self.distribution.get_name(),
    302                             'dist_version': self.distribution.get_version(),
    303                             'dist_fullname': self.distribution.get_fullname(),
    304                             'py_version': py_version,
    305                             'py_version_short': py_version[0:3],
    306                             'py_version_nodot': py_version[0] + py_version[2],
    307                             'sys_prefix': prefix,
    308                             'prefix': prefix,
    309                             'sys_exec_prefix': exec_prefix,
    310                             'exec_prefix': exec_prefix,
    311                             'userbase': self.install_userbase,
    312                             'usersite': self.install_usersite,
    313                            }
    314         self.expand_basedirs()
    315 
    316         self.dump_dirs("post-expand_basedirs()")
    317 
    318         # Now define config vars for the base directories so we can expand
    319         # everything else.
    320         self.config_vars['base'] = self.install_base
    321         self.config_vars['platbase'] = self.install_platbase
    322 
    323         if DEBUG:
    324             from pprint import pprint
    325             print "config vars:"
    326             pprint(self.config_vars)
    327 
    328         # Expand "~" and configuration variables in the installation
    329         # directories.
    330         self.expand_dirs()
    331 
    332         self.dump_dirs("post-expand_dirs()")
    333 
    334         # Create directories in the home dir:
    335         if self.user:
    336             self.create_home_path()
    337 
    338         # Pick the actual directory to install all modules to: either
    339         # install_purelib or install_platlib, depending on whether this
    340         # module distribution is pure or not.  Of course, if the user
    341         # already specified install_lib, use their selection.
    342         if self.install_lib is None:
    343             if self.distribution.ext_modules: # has extensions: non-pure
    344                 self.install_lib = self.install_platlib
    345             else:
    346                 self.install_lib = self.install_purelib
    347 
    348 
    349         # Convert directories from Unix /-separated syntax to the local
    350         # convention.
    351         self.convert_paths('lib', 'purelib', 'platlib',
    352                            'scripts', 'data', 'headers',
    353                            'userbase', 'usersite')
    354 
    355         # Well, we're not actually fully completely finalized yet: we still
    356         # have to deal with 'extra_path', which is the hack for allowing
    357         # non-packagized module distributions (hello, Numerical Python!) to
    358         # get their own directories.
    359         self.handle_extra_path()
    360         self.install_libbase = self.install_lib # needed for .pth file
    361         self.install_lib = os.path.join(self.install_lib, self.extra_dirs)
    362 
    363         # If a new root directory was supplied, make all the installation
    364         # dirs relative to it.
    365         if self.root is not None:
    366             self.change_roots('libbase', 'lib', 'purelib', 'platlib',
    367                               'scripts', 'data', 'headers')
    368 
    369         self.dump_dirs("after prepending root")
    370 
    371         # Find out the build directories, ie. where to install from.
    372         self.set_undefined_options('build',
    373                                    ('build_base', 'build_base'),
    374                                    ('build_lib', 'build_lib'))
    375 
    376         # Punt on doc directories for now -- after all, we're punting on
    377         # documentation completely!
    378 
    379     # finalize_options ()
    380 
    381 
    382     def dump_dirs (self, msg):
    383         if DEBUG:
    384             from distutils.fancy_getopt import longopt_xlate
    385             print msg + ":"
    386             for opt in self.user_options:
    387                 opt_name = opt[0]
    388                 if opt_name[-1] == "=":
    389                     opt_name = opt_name[0:-1]
    390                 if opt_name in self.negative_opt:
    391                     opt_name = string.translate(self.negative_opt[opt_name],
    392                                                 longopt_xlate)
    393                     val = not getattr(self, opt_name)
    394                 else:
    395                     opt_name = string.translate(opt_name, longopt_xlate)
    396                     val = getattr(self, opt_name)
    397                 print "  %s: %s" % (opt_name, val)
    398 
    399 
    400     def finalize_unix (self):
    401 
    402         if self.install_base is not None or self.install_platbase is not None:
    403             if ((self.install_lib is None and
    404                  self.install_purelib is None and
    405                  self.install_platlib is None) or
    406                 self.install_headers is None or
    407                 self.install_scripts is None or
    408                 self.install_data is None):
    409                 raise DistutilsOptionError, \
    410                       ("install-base or install-platbase supplied, but "
    411                       "installation scheme is incomplete")
    412             return
    413 
    414         if self.user:
    415             if self.install_userbase is None:
    416                 raise DistutilsPlatformError(
    417                     "User base directory is not specified")
    418             self.install_base = self.install_platbase = self.install_userbase
    419             self.select_scheme("unix_user")
    420         elif self.home is not None:
    421             self.install_base = self.install_platbase = self.home
    422             self.select_scheme("unix_home")
    423         else:
    424             if self.prefix is None:
    425                 if self.exec_prefix is not None:
    426                     raise DistutilsOptionError, \
    427                           "must not supply exec-prefix without prefix"
    428 
    429                 self.prefix = os.path.normpath(sys.prefix)
    430                 self.exec_prefix = os.path.normpath(sys.exec_prefix)
    431 
    432             else:
    433                 if self.exec_prefix is None:
    434                     self.exec_prefix = self.prefix
    435 
    436             self.install_base = self.prefix
    437             self.install_platbase = self.exec_prefix
    438             self.select_scheme("unix_prefix")
    439 
    440     # finalize_unix ()
    441 
    442 
    443     def finalize_other (self):          # Windows and Mac OS for now
    444 
    445         if self.user:
    446             if self.install_userbase is None:
    447                 raise DistutilsPlatformError(
    448                     "User base directory is not specified")
    449             self.install_base = self.install_platbase = self.install_userbase
    450             self.select_scheme(os.name + "_user")
    451         elif self.home is not None:
    452             self.install_base = self.install_platbase = self.home
    453             self.select_scheme("unix_home")
    454         else:
    455             if self.prefix is None:
    456                 self.prefix = os.path.normpath(sys.prefix)
    457 
    458             self.install_base = self.install_platbase = self.prefix
    459             try:
    460                 self.select_scheme(os.name)
    461             except KeyError:
    462                 raise DistutilsPlatformError, \
    463                       "I don't know how to install stuff on '%s'" % os.name
    464 
    465     # finalize_other ()
    466 
    467 
    468     def select_scheme (self, name):
    469         # it's the caller's problem if they supply a bad name!
    470         scheme = INSTALL_SCHEMES[name]
    471         for key in SCHEME_KEYS:
    472             attrname = 'install_' + key
    473             if getattr(self, attrname) is None:
    474                 setattr(self, attrname, scheme[key])
    475 
    476 
    477     def _expand_attrs (self, attrs):
    478         for attr in attrs:
    479             val = getattr(self, attr)
    480             if val is not None:
    481                 if os.name == 'posix' or os.name == 'nt':
    482                     val = os.path.expanduser(val)
    483                 val = subst_vars(val, self.config_vars)
    484                 setattr(self, attr, val)
    485 
    486 
    487     def expand_basedirs (self):
    488         self._expand_attrs(['install_base',
    489                             'install_platbase',
    490                             'root'])
    491 
    492     def expand_dirs (self):
    493         self._expand_attrs(['install_purelib',
    494                             'install_platlib',
    495                             'install_lib',
    496                             'install_headers',
    497                             'install_scripts',
    498                             'install_data',])
    499 
    500 
    501     def convert_paths (self, *names):
    502         for name in names:
    503             attr = "install_" + name
    504             setattr(self, attr, convert_path(getattr(self, attr)))
    505 
    506 
    507     def handle_extra_path (self):
    508 
    509         if self.extra_path is None:
    510             self.extra_path = self.distribution.extra_path
    511 
    512         if self.extra_path is not None:
    513             if type(self.extra_path) is StringType:
    514                 self.extra_path = string.split(self.extra_path, ',')
    515 
    516             if len(self.extra_path) == 1:
    517                 path_file = extra_dirs = self.extra_path[0]
    518             elif len(self.extra_path) == 2:
    519                 (path_file, extra_dirs) = self.extra_path
    520             else:
    521                 raise DistutilsOptionError, \
    522                       ("'extra_path' option must be a list, tuple, or "
    523                       "comma-separated string with 1 or 2 elements")
    524 
    525             # convert to local form in case Unix notation used (as it
    526             # should be in setup scripts)
    527             extra_dirs = convert_path(extra_dirs)
    528 
    529         else:
    530             path_file = None
    531             extra_dirs = ''
    532 
    533         # XXX should we warn if path_file and not extra_dirs? (in which
    534         # case the path file would be harmless but pointless)
    535         self.path_file = path_file
    536         self.extra_dirs = extra_dirs
    537 
    538     # handle_extra_path ()
    539 
    540 
    541     def change_roots (self, *names):
    542         for name in names:
    543             attr = "install_" + name
    544             setattr(self, attr, change_root(self.root, getattr(self, attr)))
    545 
    546     def create_home_path(self):
    547         """Create directories under ~
    548         """
    549         if not self.user:
    550             return
    551         home = convert_path(os.path.expanduser("~"))
    552         for name, path in self.config_vars.iteritems():
    553             if path.startswith(home) and not os.path.isdir(path):
    554                 self.debug_print("os.makedirs('%s', 0700)" % path)
    555                 os.makedirs(path, 0700)
    556 
    557     # -- Command execution methods -------------------------------------
    558 
    559     def run (self):
    560 
    561         # Obviously have to build before we can install
    562         if not self.skip_build:
    563             self.run_command('build')
    564             # If we built for any other platform, we can't install.
    565             build_plat = self.distribution.get_command_obj('build').plat_name
    566             # check warn_dir - it is a clue that the 'install' is happening
    567             # internally, and not to sys.path, so we don't check the platform
    568             # matches what we are running.
    569             if self.warn_dir and build_plat != get_platform():
    570                 raise DistutilsPlatformError("Can't install when "
    571                                              "cross-compiling")
    572 
    573         # Run all sub-commands (at least those that need to be run)
    574         for cmd_name in self.get_sub_commands():
    575             self.run_command(cmd_name)
    576 
    577         if self.path_file:
    578             self.create_path_file()
    579 
    580         # write list of installed files, if requested.
    581         if self.record:
    582             outputs = self.get_outputs()
    583             if self.root:               # strip any package prefix
    584                 root_len = len(self.root)
    585                 for counter in xrange(len(outputs)):
    586                     outputs[counter] = outputs[counter][root_len:]
    587             self.execute(write_file,
    588                          (self.record, outputs),
    589                          "writing list of installed files to '%s'" %
    590                          self.record)
    591 
    592         sys_path = map(os.path.normpath, sys.path)
    593         sys_path = map(os.path.normcase, sys_path)
    594         install_lib = os.path.normcase(os.path.normpath(self.install_lib))
    595         if (self.warn_dir and
    596             not (self.path_file and self.install_path_file) and
    597             install_lib not in sys_path):
    598             log.debug(("modules installed to '%s', which is not in "
    599                        "Python's module search path (sys.path) -- "
    600                        "you'll have to change the search path yourself"),
    601                        self.install_lib)
    602 
    603     # run ()
    604 
    605     def create_path_file (self):
    606         filename = os.path.join(self.install_libbase,
    607                                 self.path_file + ".pth")
    608         if self.install_path_file:
    609             self.execute(write_file,
    610                          (filename, [self.extra_dirs]),
    611                          "creating %s" % filename)
    612         else:
    613             self.warn("path file '%s' not created" % filename)
    614 
    615 
    616     # -- Reporting methods ---------------------------------------------
    617 
    618     def get_outputs (self):
    619         # Assemble the outputs of all the sub-commands.
    620         outputs = []
    621         for cmd_name in self.get_sub_commands():
    622             cmd = self.get_finalized_command(cmd_name)
    623             # Add the contents of cmd.get_outputs(), ensuring
    624             # that outputs doesn't contain duplicate entries
    625             for filename in cmd.get_outputs():
    626                 if filename not in outputs:
    627                     outputs.append(filename)
    628 
    629         if self.path_file and self.install_path_file:
    630             outputs.append(os.path.join(self.install_libbase,
    631                                         self.path_file + ".pth"))
    632 
    633         return outputs
    634 
    635     def get_inputs (self):
    636         # XXX gee, this looks familiar ;-(
    637         inputs = []
    638         for cmd_name in self.get_sub_commands():
    639             cmd = self.get_finalized_command(cmd_name)
    640             inputs.extend(cmd.get_inputs())
    641 
    642         return inputs
    643 
    644 
    645     # -- Predicates for sub-command list -------------------------------
    646 
    647     def has_lib (self):
    648         """Return true if the current distribution has any Python
    649         modules to install."""
    650         return (self.distribution.has_pure_modules() or
    651                 self.distribution.has_ext_modules())
    652 
    653     def has_headers (self):
    654         return self.distribution.has_headers()
    655 
    656     def has_scripts (self):
    657         return self.distribution.has_scripts()
    658 
    659     def has_data (self):
    660         return self.distribution.has_data_files()
    661 
    662 
    663     # 'sub_commands': a list of commands this command might have to run to
    664     # get its work done.  See cmd.py for more info.
    665     sub_commands = [('install_lib',     has_lib),
    666                     ('install_headers', has_headers),
    667                     ('install_scripts', has_scripts),
    668                     ('install_data',    has_data),
    669                     ('install_egg_info', lambda self:True),
    670                    ]
    671 
    672 # class install
    673