276 lines
10 KiB
Python
276 lines
10 KiB
Python
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#-----------------------------------------------------------------------------
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# Copyright (c) 2013-2023, PyInstaller Development Team.
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#
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# Distributed under the terms of the GNU General Public License (version 2
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# or later) with exception for distributing the bootloader.
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#
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# The full license is in the file COPYING.txt, distributed with this software.
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#
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# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
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#-----------------------------------------------------------------------------
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import os
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from PyInstaller import compat
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from PyInstaller import isolated
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from PyInstaller import log as logging
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from PyInstaller.building.datastruct import Tree
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from PyInstaller.depend import bindepend
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logger = logging.getLogger(__name__)
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TK_ROOTNAME = 'tk'
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TCL_ROOTNAME = 'tcl'
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@isolated.decorate
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def _get_tcl_tk_info():
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"""
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Isolated-subprocess helper to retrieve the basic Tcl/Tk information:
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- tcl_dir = path to the Tcl library/data directory.
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- tcl_version = Tcl version
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- tk_version = Tk version
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- tcl_theaded = boolean indicating whether Tcl/Tk is built with multi-threading support.
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"""
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try:
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import tkinter
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from _tkinter import TCL_VERSION, TK_VERSION
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except ImportError:
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# tkinter unavailable
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return None, None, None, False
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try:
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tcl = tkinter.Tcl()
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except tkinter.TclError: # e.g. "Can't find a usable init.tcl in the following directories: ..."
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return None, None, None, False
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# Query the location of Tcl library/data directory.
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tcl_dir = tcl.eval("info library")
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# Check if Tcl/Tk is built with multi-threaded support (built with --enable-threads), as indicated by the presence
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# of optional `threaded` member in `tcl_platform` array.
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try:
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tcl.getvar("tcl_platform(threaded)") # Ignore the actual value.
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tcl_threaded = True
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except tkinter.TclError:
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tcl_threaded = False
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return tcl_dir, TCL_VERSION, TK_VERSION, tcl_threaded
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# Populate the variables. If `tkinter` is unavailable, the values are set to `None` or `False`.
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(
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tcl_dir,
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tcl_version,
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tk_version,
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tcl_threaded,
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) = _get_tcl_tk_info()
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def _warn_if_activetcl_or_teapot_installed(tcl_root, tcltree):
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"""
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If the current Tcl installation is a Teapot-distributed version of ActiveTcl *and* the current platform is macOS,
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log a non-fatal warning that the resulting executable will (probably) fail to run on non-host systems.
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PyInstaller does *not* freeze all ActiveTcl dependencies -- including Teapot, which is typically ignorable. Since
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Teapot is *not* ignorable in this case, this function warns of impending failure.
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See Also
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-------
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https://github.com/pyinstaller/pyinstaller/issues/621
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"""
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import macholib.util
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# System libraries do not experience this problem.
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if macholib.util.in_system_path(tcl_root):
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return
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# Absolute path of the "init.tcl" script.
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try:
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init_resource = [r[1] for r in tcltree if r[1].endswith('init.tcl')][0]
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except IndexError:
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# If such script could not be found, silently return.
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return
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mentions_activetcl = False
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mentions_teapot = False
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# TCL/TK reads files using the system encoding:
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# https://www.tcl.tk/doc/howto/i18n.html#system_encoding
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# On macOS, system encoding is UTF-8
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with open(init_resource, 'r', encoding='utf8') as init_file:
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for line in init_file.readlines():
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line = line.strip().lower()
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if line.startswith('#'):
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continue
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if 'activetcl' in line:
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mentions_activetcl = True
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if 'teapot' in line:
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mentions_teapot = True
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if mentions_activetcl and mentions_teapot:
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break
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if mentions_activetcl and mentions_teapot:
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logger.warning(
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"""
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You appear to be using an ActiveTcl build of Tcl/Tk, which PyInstaller has
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difficulty freezing. To fix this, comment out all references to "teapot" in:
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%s
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See https://github.com/pyinstaller/pyinstaller/issues/621 for more information.
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""" % init_resource
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)
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def find_tcl_tk_shared_libs(tkinter_ext_file):
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"""
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Find Tcl and Tk shared libraries against which the _tkinter module is linked.
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Returns
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-------
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list
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list containing two tuples, one for Tcl and one for Tk library, where each tuple contains the library name and
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its full path, i.e., [(tcl_lib, tcl_libpath), (tk_lib, tk_libpath)]. If a library is not found, the
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corresponding tuple elements are set to None.
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"""
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tcl_lib = None
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tcl_libpath = None
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tk_lib = None
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tk_libpath = None
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for _, lib_path in bindepend.get_imports(tkinter_ext_file): # (name, fullpath) tuple
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if lib_path is None:
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continue # Skip unresolved entries
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# For comparison, take basename of lib_path. On macOS, lib_name returned by get_imports is in fact referenced
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# name, which is not necessarily just a basename.
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lib_name = os.path.basename(lib_path)
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lib_name_lower = lib_name.lower() # lower-case for comparisons
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if 'tcl' in lib_name_lower:
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tcl_lib = lib_name
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tcl_libpath = lib_path
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elif 'tk' in lib_name_lower:
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tk_lib = lib_name
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tk_libpath = lib_path
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return [(tcl_lib, tcl_libpath), (tk_lib, tk_libpath)]
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def _find_tcl_tk(tkinter_ext_file):
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"""
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Get a platform-specific 2-tuple of the absolute paths of the top-level external data directories for both
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Tcl and Tk, respectively.
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Returns
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-------
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list
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2-tuple that contains the values of `${TCL_LIBRARY}` and `${TK_LIBRARY}`, respectively.
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"""
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if compat.is_darwin:
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# On macOS, _tkinter extension is linked either against the system Tcl/Tk framework (older homebrew python,
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# python3 from XCode tools) or against bundled Tcl/Tk library (recent python.org builds, recent homebrew
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# python with python-tk). PyInstaller does not bundle data from system frameworks (as it does not not collect
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# shared libraries from them, either), so we need to determine what kind of Tcl/Tk we are dealing with.
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libs = find_tcl_tk_shared_libs(tkinter_ext_file)
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# Check the full path to the Tcl library.
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path_to_tcl = libs[0][1]
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# Starting with macOS 11, system libraries are hidden (unless both Python and PyInstaller's bootloader are built
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# against MacOS 11.x SDK). Therefore, libs may end up empty; but that implicitly indicates that the system
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# framework is used, so return (None, None) to inform the caller.
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if path_to_tcl is None:
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return None, None
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# Check if the path corresponds to the system framework, i.e., [/System]/Library/Frameworks/Tcl.framework/Tcl
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if 'Library/Frameworks/Tcl.framework' in path_to_tcl:
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return None, None # Do not collect system framework's data.
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# Bundled copy of Tcl/Tk; in this case, the dynamic library is
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# /Library/Frameworks/Python.framework/Versions/3.x/lib/libtcl8.6.dylib
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# and the data directories have standard layout that is handled by code below.
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else:
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# On Windows and linux, data directories have standard layout that is handled by code below.
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pass
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# The Tcl library location is already stored in `tcl_dir` global variable. The Tk library is in the same prefix, so
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# construct the path using `tk_version` global variable.
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tk_dir = os.path.join(os.path.dirname(tcl_dir), f"tk{tk_version}")
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return tcl_dir, tk_dir
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def _collect_tcl_modules(tcl_root):
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"""
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Get a list of TOC-style 3-tuples describing Tcl modules. The modules directory is separate from the library/data
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one, and is located at $tcl_root/../tclX, where X is the major Tcl version.
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Returns
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-------
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Tree
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Such list, if the modules directory exists.
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"""
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# Obtain Tcl major version.
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tcl_major_version = tcl_version.split('.')[0]
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modules_dirname = f"tcl{tcl_major_version}"
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modules_path = os.path.join(tcl_root, '..', modules_dirname)
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if not os.path.isdir(modules_path):
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logger.warning('Tcl modules directory %s does not exist.', modules_path)
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return []
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return Tree(modules_path, prefix=modules_dirname)
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def collect_tcl_tk_files(tkinter_ext_file):
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"""
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Get a list of TOC-style 3-tuples describing all external Tcl/Tk data files.
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Returns
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-------
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Tree
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Such list.
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"""
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# Find Tcl and Tk data directory by analyzing the _tkinter extension.
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tcl_root, tk_root = _find_tcl_tk(tkinter_ext_file)
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# On macOS, we do not collect system libraries. Therefore, if system Tcl/Tk framework is used, it makes no sense to
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# collect its data, either. In this case, _find_tcl_tk() will return None, None - either deliberately (we found the
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# data paths, but ignore them) or not (starting with macOS 11, the data path cannot be found until shared library
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# discovery is fixed).
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if compat.is_darwin and not tcl_root and not tk_root:
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logger.info(
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"Not collecting Tcl/Tk data - either python is using macOS\' system Tcl/Tk framework, or Tcl/Tk data "
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"directories could not be found."
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)
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return []
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# TODO Shouldn't these be fatal exceptions?
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if not tcl_root:
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logger.error('Tcl/Tk improperly installed on this system.')
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return []
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if not os.path.isdir(tcl_root):
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logger.error('Tcl data directory "%s" not found.', tcl_root)
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return []
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if not os.path.isdir(tk_root):
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logger.error('Tk data directory "%s" not found.', tk_root)
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return []
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# Collect Tcl and Tk scripts from their corresponding library/data directories. In contrast to source directories,
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# which are typically versioned (tcl8.6, tk8.6), the target directories are unversioned (tcl, tk); they are added
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# to the Tcl/Tk search path via runtime hook for _tkinter, which sets the `TCL_LIBRARY` and `TK_LIBRARY` environment
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# variables.
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tcltree = Tree(tcl_root, prefix=TCL_ROOTNAME, excludes=['demos', '*.lib', 'tclConfig.sh'])
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tktree = Tree(tk_root, prefix=TK_ROOTNAME, excludes=['demos', '*.lib', 'tkConfig.sh'])
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# If the current Tcl installation is a Teapot-distributed version of ActiveTcl and the current platform is Mac OS,
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# warn that this is bad.
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if compat.is_darwin:
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_warn_if_activetcl_or_teapot_installed(tcl_root, tcltree)
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# Collect Tcl modules.
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tclmodulestree = _collect_tcl_modules(tcl_root)
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return tcltree + tktree + tclmodulestree
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