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✏️ Editing: bdist_msi.py

# Copyright (C) 2005, 2006 Martin von Löwis
# Licensed to PSF under a Contributor Agreement.
# The bdist_wininst command proper
# based on bdist_wininst
"""
Implements the bdist_msi command.
"""

import sys, os
from distutils.core import Command
from distutils.dir_util import remove_tree
from distutils.sysconfig import get_python_version
from distutils.version import StrictVersion
from distutils.errors import DistutilsOptionError
from distutils.util import get_platform
from distutils import log
import msilib
from msilib import schema, sequence, text
from msilib import Directory, Feature, Dialog, add_data

class PyDialog(Dialog):
    """Dialog class with a fixed layout: controls at the top, then a ruler,
    then a list of buttons: back, next, cancel. Optionally a bitmap at the
    left."""
    def __init__(self, *args, **kw):
        """Dialog(database, name, x, y, w, h, attributes, title, first,
        default, cancel, bitmap=true)"""
        Dialog.__init__(self, *args)
        ruler = self.h - 36
        bmwidth = 152*ruler/328
        #if kw.get("bitmap", True):
        #    self.bitmap("Bitmap", 0, 0, bmwidth, ruler, "PythonWin")
        self.line("BottomLine", 0, ruler, self.w, 0)

def title(self, title):
        "Set the title text of the dialog at the top."
        # name, x, y, w, h, flags=Visible|Enabled|Transparent|NoPrefix,
        # text, in VerdanaBold10
        self.text("Title", 15, 10, 320, 60, 0x30003,
                  r"{\VerdanaBold10}%s" % title)

def back(self, title, next, name = "Back", active = 1):
        """Add a back button with a given title, the tab-next button,
        its name in the Control table, possibly initially disabled.

Return the button, so that events can be associated"""
        if active:
            flags = 3 # Visible|Enabled
        else:
            flags = 1 # Visible
        return self.pushbutton(name, 180, self.h-27 , 56, 17, flags, title, next)

def cancel(self, title, next, name = "Cancel", active = 1):
        """Add a cancel button with a given title, the tab-next button,
        its name in the Control table, possibly initially disabled.

Return the button, so that events can be associated"""
        if active:
            flags = 3 # Visible|Enabled
        else:
            flags = 1 # Visible
        return self.pushbutton(name, 304, self.h-27, 56, 17, flags, title, next)

def next(self, title, next, name = "Next", active = 1):
        """Add a Next button with a given title, the tab-next button,
        its name in the Control table, possibly initially disabled.

Return the button, so that events can be associated"""
        if active:
            flags = 3 # Visible|Enabled
        else:
            flags = 1 # Visible
        return self.pushbutton(name, 236, self.h-27, 56, 17, flags, title, next)

def xbutton(self, name, title, next, xpos):
        """Add a button with a given title, the tab-next button,
        its name in the Control table, giving its x position; the
        y-position is aligned with the other buttons.

Return the button, so that events can be associated"""
        return self.pushbutton(name, int(self.w*xpos - 28), self.h-27, 56, 17, 3, title, next)

class bdist_msi(Command):

description = "create a Microsoft Installer (.msi) binary distribution"

user_options = [('bdist-dir=', None,
                     "temporary directory for creating the distribution"),
                    ('plat-name=', 'p',
                     "platform name to embed in generated filenames "
                     "(default: %s)" % get_platform()),
                    ('keep-temp', 'k',
                     "keep the pseudo-installation tree around after " +
                     "creating the distribution archive"),
                    ('target-version=', None,
                     "require a specific python version" +
                     " on the target system"),
                    ('no-target-compile', 'c',
                     "do not compile .py to .pyc on the target system"),
                    ('no-target-optimize', 'o',
                     "do not compile .py to .pyo (optimized) "
                     "on the target system"),
                    ('dist-dir=', 'd',
                     "directory to put final built distributions in"),
                    ('skip-build', None,
                     "skip rebuilding everything (for testing/debugging)"),
                    ('install-script=', None,
                     "basename of installation script to be run after "
                     "installation or before deinstallation"),
                    ('pre-install-script=', None,
                     "Fully qualified filename of a script to be run before "
                     "any files are installed.  This script need not be in the "
                     "distribution"),
                   ]

boolean_options = ['keep-temp', 'no-target-compile', 'no-target-optimize',
                       'skip-build']

all_versions = ['2.0', '2.1', '2.2', '2.3', '2.4',
                    '2.5', '2.6', '2.7', '2.8', '2.9',
                    '3.0', '3.1', '3.2', '3.3', '3.4',
                    '3.5', '3.6', '3.7', '3.8', '3.9']
    other_version = 'X'

def initialize_options(self):
        self.bdist_dir = None
        self.plat_name = None
        self.keep_temp = 0
        self.no_target_compile = 0
        self.no_target_optimize = 0
        self.target_version = None
        self.dist_dir = None
        self.skip_build = None
        self.install_script = None
        self.pre_install_script = None
        self.versions = None

def finalize_options(self):
        self.set_undefined_options('bdist', ('skip_build', 'skip_build'))

if self.bdist_dir is None:
            bdist_base = self.get_finalized_command('bdist').bdist_base
            self.bdist_dir = os.path.join(bdist_base, 'msi')

short_version = get_python_version()
        if (not self.target_version) and self.distribution.has_ext_modules():
            self.target_version = short_version

if self.target_version:
            self.versions = [self.target_version]
            if not self.skip_build and self.distribution.has_ext_modules()\
               and self.target_version != short_version:
                raise DistutilsOptionError(
                      "target version can only be %s, or the '--skip-build'"
                      " option must be specified" % (short_version,))
        else:
            self.versions = list(self.all_versions)

self.set_undefined_options('bdist',
                                   ('dist_dir', 'dist_dir'),
                                   ('plat_name', 'plat_name'),
                                   )

if self.pre_install_script:
            raise DistutilsOptionError(
                  "the pre-install-script feature is not yet implemented")

if self.install_script:
            for script in self.distribution.scripts:
                if self.install_script == os.path.basename(script):
                    break
            else:
                raise DistutilsOptionError(
                      "install_script '%s' not found in scripts"
                      % self.install_script)
        self.install_script_key = None

def run(self):
        if not self.skip_build:
            self.run_command('build')

install = self.reinitialize_command('install', reinit_subcommands=1)
        install.prefix = self.bdist_dir
        install.skip_build = self.skip_build
        install.warn_dir = 0

install_lib = self.reinitialize_command('install_lib')
        # we do not want to include pyc or pyo files
        install_lib.compile = 0
        install_lib.optimize = 0

if self.distribution.has_ext_modules():
            # If we are building an installer for a Python version other
            # than the one we are currently running, then we need to ensure
            # our build_lib reflects the other Python version rather than ours.
            # Note that for target_version!=sys.version, we must have skipped the
            # build step, so there is no issue with enforcing the build of this
            # version.
            target_version = self.target_version
            if not target_version:
                assert self.skip_build, "Should have already checked this"
                target_version = '%d.%d' % sys.version_info[:2]
            plat_specifier = ".%s-%s" % (self.plat_name, target_version)
            build = self.get_finalized_command('build')
            build.build_lib = os.path.join(build.build_base,
                                           'lib' + plat_specifier)

log.info("installing to %s", self.bdist_dir)
        install.ensure_finalized()

# avoid warning of 'install_lib' about installing
        # into a directory not in sys.path
        sys.path.insert(0, os.path.join(self.bdist_dir, 'PURELIB'))

install.run()

del sys.path[0]

self.mkpath(self.dist_dir)
        fullname = self.distribution.get_fullname()
        installer_name = self.get_installer_filename(fullname)
        installer_name = os.path.abspath(installer_name)
        if os.path.exists(installer_name): os.unlink(installer_name)

metadata = self.distribution.metadata
        author = metadata.author
        if not author:
            author = metadata.maintainer
        if not author:
            author = "UNKNOWN"
        version = metadata.get_version()
        # ProductVersion must be strictly numeric
        # XXX need to deal with prerelease versions
        sversion = "%d.%d.%d" % StrictVersion(version).version
        # Prefix ProductName with Python x.y, so that
        # it sorts together with the other Python packages
        # in Add-Remove-Programs (APR)
        fullname = self.distribution.get_fullname()
        if self.target_version:
            product_name = "Python %s %s" % (self.target_version, fullname)
        else:
            product_name = "Python %s" % (fullname)
        self.db = msilib.init_database(installer_name, schema,
                product_name, msilib.gen_uuid(),
                sversion, author)
        msilib.add_tables(self.db, sequence)
        props = [('DistVersion', version)]
        email = metadata.author_email or metadata.maintainer_email
        if email:
            props.append(("ARPCONTACT", email))
        if metadata.url:
            props.append(("ARPURLINFOABOUT", metadata.url))
        if props:
            add_data(self.db, 'Property', props)

self.add_find_python()
        self.add_files()
        self.add_scripts()
        self.add_ui()
        self.db.Commit()

if hasattr(self.distribution, 'dist_files'):
            tup = 'bdist_msi', self.target_version or 'any', fullname
            self.distribution.dist_files.append(tup)

if not self.keep_temp:
            remove_tree(self.bdist_dir, dry_run=self.dry_run)

def add_files(self):
        db = self.db
        cab = msilib.CAB("distfiles")
        rootdir = os.path.abspath(self.bdist_dir)

root = Directory(db, cab, None, rootdir, "TARGETDIR", "SourceDir")
        f = Feature(db, "Python", "Python", "Everything",
                    0, 1, directory="TARGETDIR")

items = [(f, root, '')]
        for version in self.versions + [self.other_version]:
            target = "TARGETDIR" + version
            name = default = "Python" + version
            desc = "Everything"
            if version is self.other_version:
                title = "Python from another location"
                level = 2
            else:
                title = "Python %s from registry" % version
                level = 1
            f = Feature(db, name, title, desc, 1, level, directory=target)
            dir = Directory(db, cab, root, rootdir, target, default)
            items.append((f, dir, version))
        db.Commit()

seen = {}
        for feature, dir, version in items:
            todo = [dir]
            while todo:
                dir = todo.pop()
                for file in os.listdir(dir.absolute):
                    afile = os.path.join(dir.absolute, file)
                    if os.path.isdir(afile):
                        short = "%s|%s" % (dir.make_short(file), file)
                        default = file + version
                        newdir = Directory(db, cab, dir, file, default, short)
                        todo.append(newdir)
                    else:
                        if not dir.component:
                            dir.start_component(dir.logical, feature, 0)
                        if afile not in seen:
                            key = seen[afile] = dir.add_file(file)
                            if file==self.install_script:
                                if self.install_script_key:
                                    raise DistutilsOptionError(
                                          "Multiple files with name %s" % file)
                                self.install_script_key = '[#%s]' % key
                        else:
                            key = seen[afile]
                            add_data(self.db, "DuplicateFile",
                                [(key + version, dir.component, key, None, dir.logical)])
            db.Commit()
        cab.commit(db)

def add_find_python(self):
        """Adds code to the installer to compute the location of Python.

Properties PYTHON.MACHINE.X.Y and PYTHON.USER.X.Y will be set from the
        registry for each version of Python.

Properties TARGETDIRX.Y will be set from PYTHON.USER.X.Y if defined,
        else from PYTHON.MACHINE.X.Y.

Properties PYTHONX.Y will be set to TARGETDIRX.Y\\python.exe"""

start = 402
        for ver in self.versions:
            install_path = r"SOFTWARE\Python\PythonCore\%s\InstallPath" % ver
            machine_reg = "python.machine." + ver
            user_reg = "python.user." + ver
            machine_prop = "PYTHON.MACHINE." + ver
            user_prop = "PYTHON.USER." + ver
            machine_action = "PythonFromMachine" + ver
            user_action = "PythonFromUser" + ver
            exe_action = "PythonExe" + ver
            target_dir_prop = "TARGETDIR" + ver
            exe_prop = "PYTHON" + ver
            if msilib.Win64:
                # type: msidbLocatorTypeRawValue + msidbLocatorType64bit
                Type = 2+16
            else:
                Type = 2
            add_data(self.db, "RegLocator",
                    [(machine_reg, 2, install_path, None, Type),
                     (user_reg, 1, install_path, None, Type)])
            add_data(self.db, "AppSearch",
                    [(machine_prop, machine_reg),
                     (user_prop, user_reg)])
            add_data(self.db, "CustomAction",
                    [(machine_action, 51+256, target_dir_prop, "[" + machine_prop + "]"),
                     (user_action, 51+256, target_dir_prop, "[" + user_prop + "]"),
                     (exe_action, 51+256, exe_prop, "[" + target_dir_prop + "]\\python.exe"),
                    ])
            add_data(self.db, "InstallExecuteSequence",
                    [(machine_action, machine_prop, start),
                     (user_action, user_prop, start + 1),
                     (exe_action, None, start + 2),
                    ])
            add_data(self.db, "InstallUISequence",
                    [(machine_action, machine_prop, start),
                     (user_action, user_prop, start + 1),
                     (exe_action, None, start + 2),
                    ])
            add_data(self.db, "Condition",
                    [("Python" + ver, 0, "NOT TARGETDIR" + ver)])
            start += 4
            assert start < 500

def add_scripts(self):
        if self.install_script:
            start = 6800
            for ver in self.versions + [self.other_version]:
                install_action = "install_script." + ver
                exe_prop = "PYTHON" + ver
                add_data(self.db, "CustomAction",
                        [(install_action, 50, exe_prop, self.install_script_key)])
                add_data(self.db, "InstallExecuteSequence",
                        [(install_action, "&Python%s=3" % ver, start)])
                start += 1
        # XXX pre-install scripts are currently refused in finalize_options()
        #     but if this feature is completed, it will also need to add
        #     entries for each version as the above code does
        if self.pre_install_script:
            scriptfn = os.path.join(self.bdist_dir, "preinstall.bat")
            f = open(scriptfn, "w")
            # The batch file will be executed with [PYTHON], so that %1
            # is the path to the Python interpreter; %0 will be the path
            # of the batch file.
            # rem ="""
            # %1 %0
            # exit
            # """
            # <actual script>
            f.write('rem ="""\n%1 %0\nexit\n"""\n')
            f.write(open(self.pre_install_script).read())
            f.close()
            add_data(self.db, "Binary",
                [("PreInstall", msilib.Binary(scriptfn))
                ])
            add_data(self.db, "CustomAction",
                [("PreInstall", 2, "PreInstall", None)
                ])
            add_data(self.db, "InstallExecuteSequence",
                    [("PreInstall", "NOT Installed", 450)])

def add_ui(self):
        db = self.db
        x = y = 50
        w = 370
        h = 300
        title = "[ProductName] Setup"

# see "Dialog Style Bits"
        modal = 3      # visible | modal
        modeless = 1   # visible
        track_disk_space = 32

# UI customization properties
        add_data(db, "Property",
                 # See "DefaultUIFont Property"
                 [("DefaultUIFont", "DlgFont8"),
                  # See "ErrorDialog Style Bit"
                  ("ErrorDialog", "ErrorDlg"),
                  ("Progress1", "Install"),   # modified in maintenance type dlg
                  ("Progress2", "installs"),
                  ("MaintenanceForm_Action", "Repair"),
                  # possible values: ALL, JUSTME
                  ("WhichUsers", "ALL")
                 ])

# Fonts, see "TextStyle Table"
        add_data(db, "TextStyle",
                 [("DlgFont8", "Tahoma", 9, None, 0),
                  ("DlgFontBold8", "Tahoma", 8, None, 1), #bold
                  ("VerdanaBold10", "Verdana", 10, None, 1),
                  ("VerdanaRed9", "Verdana", 9, 255, 0),
                 ])

# UI Sequences, see "InstallUISequence Table", "Using a Sequence Table"
        # Numbers indicate sequence; see sequence.py for how these action integrate
        add_data(db, "InstallUISequence",
                 [("PrepareDlg", "Not Privileged or Windows9x or Installed", 140),
                  ("WhichUsersDlg", "Privileged and not Windows9x and not Installed", 141),
                  # In the user interface, assume all-users installation if privileged.
                  ("SelectFeaturesDlg", "Not Installed", 1230),
                  # XXX no support for resume installations yet
                  #("ResumeDlg", "Installed AND (RESUME OR Preselected)", 1240),
                  ("MaintenanceTypeDlg", "Installed AND NOT RESUME AND NOT Preselected", 1250),
                  ("ProgressDlg", None, 1280)])

add_data(db, 'ActionText', text.ActionText)
        add_data(db, 'UIText', text.UIText)
        #####################################################################
        # Standard dialogs: FatalError, UserExit, ExitDialog
        fatal=PyDialog(db, "FatalError", x, y, w, h, modal, title,
                     "Finish", "Finish", "Finish")
        fatal.title("[ProductName] Installer ended prematurely")
        fatal.back("< Back", "Finish", active = 0)
        fatal.cancel("Cancel", "Back", active = 0)
        fatal.text("Description1", 15, 70, 320, 80, 0x30003,
                   "[ProductName] setup ended prematurely because of an error.  Your system has not been modified.  To install this program at a later time, please run the installation again.")
        fatal.text("Description2", 15, 155, 320, 20, 0x30003,
                   "Click the Finish button to exit the Installer.")
        c=fatal.next("Finish", "Cancel", name="Finish")
        c.event("EndDialog", "Exit")

user_exit=PyDialog(db, "UserExit", x, y, w, h, modal, title,
                     "Finish", "Finish", "Finish")
        user_exit.title("[ProductName] Installer was interrupted")
        user_exit.back("< Back", "Finish", active = 0)
        user_exit.cancel("Cancel", "Back", active = 0)
        user_exit.text("Description1", 15, 70, 320, 80, 0x30003,
                   "[ProductName] setup was interrupted.  Your system has not been modified.  "
                   "To install this program at a later time, please run the installation again.")
        user_exit.text("Description2", 15, 155, 320, 20, 0x30003,
                   "Click the Finish button to exit the Installer.")
        c = user_exit.next("Finish", "Cancel", name="Finish")
        c.event("EndDialog", "Exit")

exit_dialog = PyDialog(db, "ExitDialog", x, y, w, h, modal, title,
                             "Finish", "Finish", "Finish")
        exit_dialog.title("Completing the [ProductName] Installer")
        exit_dialog.back("< Back", "Finish", active = 0)
        exit_dialog.cancel("Cancel", "Back", active = 0)
        exit_dialog.text("Description", 15, 235, 320, 20, 0x30003,
                   "Click the Finish button to exit the Installer.")
        c = exit_dialog.next("Finish", "Cancel", name="Finish")
        c.event("EndDialog", "Return")

#####################################################################
        # Required dialog: FilesInUse, ErrorDlg
        inuse = PyDialog(db, "FilesInUse",
                         x, y, w, h,
                         19,                # KeepModeless|Modal|Visible
                         title,
                         "Retry", "Retry", "Retry", bitmap=False)
        inuse.text("Title", 15, 6, 200, 15, 0x30003,
                   r"{\DlgFontBold8}Files in Use")
        inuse.text("Description", 20, 23, 280, 20, 0x30003,
               "Some files that need to be updated are currently in use.")
        inuse.text("Text", 20, 55, 330, 50, 3,
                   "The following applications are using files that need to be updated by this setup. Close these applications and then click Retry to continue the installation or Cancel to exit it.")
        inuse.control("List", "ListBox", 20, 107, 330, 130, 7, "FileInUseProcess",
                      None, None, None)
        c=inuse.back("Exit", "Ignore", name="Exit")
        c.event("EndDialog", "Exit")
        c=inuse.next("Ignore", "Retry", name="Ignore")
        c.event("EndDialog", "Ignore")
        c=inuse.cancel("Retry", "Exit", name="Retry")
        c.event("EndDialog","Retry")

# See "Error Dialog". See "ICE20" for the required names of the controls.
        error = Dialog(db, "ErrorDlg",
                       50, 10, 330, 101,
                       65543,       # Error|Minimize|Modal|Visible
                       title,
                       "ErrorText", None, None)
        error.text("ErrorText", 50,9,280,48,3, "")
        #error.control("ErrorIcon", "Icon", 15, 9, 24, 24, 5242881, None, "py.ico", None, None)
        error.pushbutton("N",120,72,81,21,3,"No",None).event("EndDialog","ErrorNo")
        error.pushbutton("Y",240,72,81,21,3,"Yes",None).event("EndDialog","ErrorYes")
        error.pushbutton("A",0,72,81,21,3,"Abort",None).event("EndDialog","ErrorAbort")
        error.pushbutton("C",42,72,81,21,3,"Cancel",None).event("EndDialog","ErrorCancel")
        error.pushbutton("I",81,72,81,21,3,"Ignore",None).event("EndDialog","ErrorIgnore")
        error.pushbutton("O",159,72,81,21,3,"Ok",None).event("EndDialog","ErrorOk")
        error.pushbutton("R",198,72,81,21,3,"Retry",None).event("EndDialog","ErrorRetry")

#####################################################################
        # Global "Query Cancel" dialog
        cancel = Dialog(db, "CancelDlg", 50, 10, 260, 85, 3, title,
                        "No", "No", "No")
        cancel.text("Text", 48, 15, 194, 30, 3,
                    "Are you sure you want to cancel [ProductName] installation?")
        #cancel.control("Icon", "Icon", 15, 15, 24, 24, 5242881, None,
        #               "py.ico", None, None)
        c=cancel.pushbutton("Yes", 72, 57, 56, 17, 3, "Yes", "No")
        c.event("EndDialog", "Exit")

c=cancel.pushbutton("No", 132, 57, 56, 17, 3, "No", "Yes")
        c.event("EndDialog", "Return")

#####################################################################
        # Global "Wait for costing" dialog
        costing = Dialog(db, "WaitForCostingDlg", 50, 10, 260, 85, modal, title,
                         "Return", "Return", "Return")
        costing.text("Text", 48, 15, 194, 30, 3,
                     "Please wait while the installer finishes determining your disk space requirements.")
        c = costing.pushbutton("Return", 102, 57, 56, 17, 3, "Return", None)
        c.event("EndDialog", "Exit")

#####################################################################
        # Preparation dialog: no user input except cancellation
        prep = PyDialog(db, "PrepareDlg", x, y, w, h, modeless, title,
                        "Cancel", "Cancel", "Cancel")
        prep.text("Description", 15, 70, 320, 40, 0x30003,
                  "Please wait while the Installer prepares to guide you through the installation.")
        prep.title("Welcome to the [ProductName] Installer")
        c=prep.text("ActionText", 15, 110, 320, 20, 0x30003, "Pondering...")
        c.mapping("ActionText", "Text")
        c=prep.text("ActionData", 15, 135, 320, 30, 0x30003, None)
        c.mapping("ActionData", "Text")
        prep.back("Back", None, active=0)
        prep.next("Next", None, active=0)
        c=prep.cancel("Cancel", None)
        c.event("SpawnDialog", "CancelDlg")

#####################################################################
        # Feature (Python directory) selection
        seldlg = PyDialog(db, "SelectFeaturesDlg", x, y, w, h, modal, title,
                        "Next", "Next", "Cancel")
        seldlg.title("Select Python Installations")

seldlg.text("Hint", 15, 30, 300, 20, 3,
                    "Select the Python locations where %s should be installed."
                    % self.distribution.get_fullname())

seldlg.back("< Back", None, active=0)
        c = seldlg.next("Next >", "Cancel")
        order = 1
        c.event("[TARGETDIR]", "[SourceDir]", ordering=order)
        for version in self.versions + [self.other_version]:
            order += 1
            c.event("[TARGETDIR]", "[TARGETDIR%s]" % version,
                    "FEATURE_SELECTED AND &Python%s=3" % version,
                    ordering=order)
        c.event("SpawnWaitDialog", "WaitForCostingDlg", ordering=order + 1)
        c.event("EndDialog", "Return", ordering=order + 2)
        c = seldlg.cancel("Cancel", "Features")
        c.event("SpawnDialog", "CancelDlg")

c = seldlg.control("Features", "SelectionTree", 15, 60, 300, 120, 3,
                           "FEATURE", None, "PathEdit", None)
        c.event("[FEATURE_SELECTED]", "1")
        ver = self.other_version
        install_other_cond = "FEATURE_SELECTED AND &Python%s=3" % ver
        dont_install_other_cond = "FEATURE_SELECTED AND &Python%s<>3" % ver

c = seldlg.text("Other", 15, 200, 300, 15, 3,
                        "Provide an alternate Python location")
        c.condition("Enable", install_other_cond)
        c.condition("Show", install_other_cond)
        c.condition("Disable", dont_install_other_cond)
        c.condition("Hide", dont_install_other_cond)

c = seldlg.control("PathEdit", "PathEdit", 15, 215, 300, 16, 1,
                           "TARGETDIR" + ver, None, "Next", None)
        c.condition("Enable", install_other_cond)
        c.condition("Show", install_other_cond)
        c.condition("Disable", dont_install_other_cond)
        c.condition("Hide", dont_install_other_cond)

#####################################################################
        # Disk cost
        cost = PyDialog(db, "DiskCostDlg", x, y, w, h, modal, title,
                        "OK", "OK", "OK", bitmap=False)
        cost.text("Title", 15, 6, 200, 15, 0x30003,
                 r"{\DlgFontBold8}Disk Space Requirements")
        cost.text("Description", 20, 20, 280, 20, 0x30003,
                  "The disk space required for the installation of the selected features.")
        cost.text("Text", 20, 53, 330, 60, 3,
                  "The highlighted volumes (if any) do not have enough disk space "
              "available for the currently selected features.  You can either "
              "remove some files from the highlighted volumes, or choose to "
              "install less features onto local drive(s), or select different "
              "destination drive(s).")
        cost.control("VolumeList", "VolumeCostList", 20, 100, 330, 150, 393223,
                     None, "{120}{70}{70}{70}{70}", None, None)
        cost.xbutton("OK", "Ok", None, 0.5).event("EndDialog", "Return")

#####################################################################
        # WhichUsers Dialog. Only available on NT, and for privileged users.
        # This must be run before FindRelatedProducts, because that will
        # take into account whether the previous installation was per-user
        # or per-machine. We currently don't support going back to this
        # dialog after "Next" was selected; to support this, we would need to
        # find how to reset the ALLUSERS property, and how to re-run
        # FindRelatedProducts.
        # On Windows9x, the ALLUSERS property is ignored on the command line
        # and in the Property table, but installer fails according to the documentation
        # if a dialog attempts to set ALLUSERS.
        whichusers = PyDialog(db, "WhichUsersDlg", x, y, w, h, modal, title,
                            "AdminInstall", "Next", "Cancel")
        whichusers.title("Select whether to install [ProductName] for all users of this computer.")
        # A radio group with two options: allusers, justme
        g = whichusers.radiogroup("AdminInstall", 15, 60, 260, 50, 3,
                                  "WhichUsers", "", "Next")
        g.add("ALL", 0, 5, 150, 20, "Install for all users")
        g.add("JUSTME", 0, 25, 150, 20, "Install just for me")

whichusers.back("Back", None, active=0)

c = whichusers.next("Next >", "Cancel")
        c.event("[ALLUSERS]", "1", 'WhichUsers="ALL"', 1)
        c.event("EndDialog", "Return", ordering = 2)

c = whichusers.cancel("Cancel", "AdminInstall")
        c.event("SpawnDialog", "CancelDlg")

#####################################################################
        # Installation Progress dialog (modeless)
        progress = PyDialog(db, "ProgressDlg", x, y, w, h, modeless, title,
                            "Cancel", "Cancel", "Cancel", bitmap=False)
        progress.text("Title", 20, 15, 200, 15, 0x30003,
                     r"{\DlgFontBold8}[Progress1] [ProductName]")
        progress.text("Text", 35, 65, 300, 30, 3,
                      "Please wait while the Installer [Progress2] [ProductName]. "
                      "This may take several minutes.")
        progress.text("StatusLabel", 35, 100, 35, 20, 3, "Status:")

c=progress.text("ActionText", 70, 100, w-70, 20, 3, "Pondering...")
        c.mapping("ActionText", "Text")

#c=progress.text("ActionData", 35, 140, 300, 20, 3, None)
        #c.mapping("ActionData", "Text")

c=progress.control("ProgressBar", "ProgressBar", 35, 120, 300, 10, 65537,
                           None, "Progress done", None, None)
        c.mapping("SetProgress", "Progress")

progress.back("< Back", "Next", active=False)
        progress.next("Next >", "Cancel", active=False)
        progress.cancel("Cancel", "Back").event("SpawnDialog", "CancelDlg")

###################################################################
        # Maintenance type: repair/uninstall
        maint = PyDialog(db, "MaintenanceTypeDlg", x, y, w, h, modal, title,
                         "Next", "Next", "Cancel")
        maint.title("Welcome to the [ProductName] Setup Wizard")
        maint.text("BodyText", 15, 63, 330, 42, 3,
                   "Select whether you want to repair or remove [ProductName].")
        g=maint.radiogroup("RepairRadioGroup", 15, 108, 330, 60, 3,
                            "MaintenanceForm_Action", "", "Next")
        #g.add("Change", 0, 0, 200, 17, "&Change [ProductName]")
        g.add("Repair", 0, 18, 200, 17, "&Repair [ProductName]")
        g.add("Remove", 0, 36, 200, 17, "Re&move [ProductName]")

maint.back("< Back", None, active=False)
        c=maint.next("Finish", "Cancel")
        # Change installation: Change progress dialog to "Change", then ask
        # for feature selection
        #c.event("[Progress1]", "Change", 'MaintenanceForm_Action="Change"', 1)
        #c.event("[Progress2]", "changes", 'MaintenanceForm_Action="Change"', 2)

# Reinstall: Change progress dialog to "Repair", then invoke reinstall
        # Also set list of reinstalled features to "ALL"
        c.event("[REINSTALL]", "ALL", 'MaintenanceForm_Action="Repair"', 5)
        c.event("[Progress1]", "Repairing", 'MaintenanceForm_Action="Repair"', 6)
        c.event("[Progress2]", "repairs", 'MaintenanceForm_Action="Repair"', 7)
        c.event("Reinstall", "ALL", 'MaintenanceForm_Action="Repair"', 8)

# Uninstall: Change progress to "Remove", then invoke uninstall
        # Also set list of removed features to "ALL"
        c.event("[REMOVE]", "ALL", 'MaintenanceForm_Action="Remove"', 11)
        c.event("[Progress1]", "Removing", 'MaintenanceForm_Action="Remove"', 12)
        c.event("[Progress2]", "removes", 'MaintenanceForm_Action="Remove"', 13)
        c.event("Remove", "ALL", 'MaintenanceForm_Action="Remove"', 14)

# Close dialog when maintenance action scheduled
        c.event("EndDialog", "Return", 'MaintenanceForm_Action<>"Change"', 20)
        #c.event("NewDialog", "SelectFeaturesDlg", 'MaintenanceForm_Action="Change"', 21)

maint.cancel("Cancel", "RepairRadioGroup").event("SpawnDialog", "CancelDlg")

def get_installer_filename(self, fullname):
        # Factored out to allow overriding in subclasses
        if self.target_version:
            base_name = "%s.%s-py%s.msi" % (fullname, self.plat_name,
                                            self.target_version)
        else:
            base_name = "%s.%s.msi" % (fullname, self.plat_name)
        installer_name = os.path.join(self.dist_dir, base_name)
        return installer_name

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