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diff --git a/zenmap/zenmapCore/I18N.py b/zenmap/zenmapCore/I18N.py
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+++ b/zenmap/zenmapCore/I18N.py
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+#!/usr/bin/env python3
+
+# ***********************IMPORTANT NMAP LICENSE TERMS************************
+# *
+# * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap
+# * Project"). Nmap is also a registered trademark of the Nmap Project.
+# *
+# * This program is distributed under the terms of the Nmap Public Source
+# * License (NPSL). The exact license text applying to a particular Nmap
+# * release or source code control revision is contained in the LICENSE
+# * file distributed with that version of Nmap or source code control
+# * revision. More Nmap copyright/legal information is available from
+# * https://nmap.org/book/man-legal.html, and further information on the
+# * NPSL license itself can be found at https://nmap.org/npsl/ . This
+# * header summarizes some key points from the Nmap license, but is no
+# * substitute for the actual license text.
+# *
+# * Nmap is generally free for end users to download and use themselves,
+# * including commercial use. It is available from https://nmap.org.
+# *
+# * The Nmap license generally prohibits companies from using and
+# * redistributing Nmap in commercial products, but we sell a special Nmap
+# * OEM Edition with a more permissive license and special features for
+# * this purpose. See https://nmap.org/oem/
+# *
+# * If you have received a written Nmap license agreement or contract
+# * stating terms other than these (such as an Nmap OEM license), you may
+# * choose to use and redistribute Nmap under those terms instead.
+# *
+# * The official Nmap Windows builds include the Npcap software
+# * (https://npcap.com) for packet capture and transmission. It is under
+# * separate license terms which forbid redistribution without special
+# * permission. So the official Nmap Windows builds may not be redistributed
+# * without special permission (such as an Nmap OEM license).
+# *
+# * Source is provided to this software because we believe users have a
+# * right to know exactly what a program is going to do before they run it.
+# * This also allows you to audit the software for security holes.
+# *
+# * Source code also allows you to port Nmap to new platforms, fix bugs, and add
+# * new features. You are highly encouraged to submit your changes as a Github PR
+# * or by email to the dev@nmap.org mailing list for possible incorporation into
+# * the main distribution. Unless you specify otherwise, it is understood that
+# * you are offering us very broad rights to use your submissions as described in
+# * the Nmap Public Source License Contributor Agreement. This is important
+# * because we fund the project by selling licenses with various terms, and also
+# * because the inability to relicense code has caused devastating problems for
+# * other Free Software projects (such as KDE and NASM).
+# *
+# * The free version of Nmap is distributed in the hope that it will be
+# * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties,
+# * indemnification and commercial support are all available through the
+# * Npcap OEM program--see https://nmap.org/oem/
+# *
+# ***************************************************************************/
+
+import locale
+import os
+
+from zenmapCore.Name import APP_NAME
+
+
+def get_locales():
+    """Get a list of locales to use based on system configuration."""
+    locales = []
+    # locale.getdefaultlocales already looks at LANG et al. on Unix but not on
+    # Windows. We look at the environment variables first to allow overriding
+    # the system-wide setting on Windows.
+    for envar in ("LANGUAGE", "LC_ALL", "LC_MESSAGES", "LANG"):
+        val = os.environ.get(envar)
+        if val:
+            locales = val.split(":")
+            break
+    try:
+        loc, enc = locale.getdefaultlocale()
+        if loc is not None:
+            locales.append(loc)
+    except ValueError:
+        # locale.getdefaultlocale can fail with ValueError on certain locale
+        # names; it has been seen with at least en_NG.
+        # http://bugs.python.org/issue6895
+        pass
+    return locales
+
+
+def install_gettext(locale_dir):
+    try:
+        locale.setlocale(locale.LC_ALL, '')
+    except locale.Error:
+        # This can happen if the LANG environment variable is set to something
+        # invalid, like LANG=nothing or LANG=en_US/utf8 or LANG=us-ascii.
+        # Continue without internationalization.
+        pass
+
+    try:
+        import gettext
+    except ImportError:
+        pass
+    else:
+        t = gettext.translation(
+                APP_NAME, locale_dir, languages=get_locales(), fallback=True)
+        t.install()
+
+# Install a dummy _ function so modules can safely use it after importing this
+# module, even if they don't install the gettext version.
+
+import builtins
+builtins.__dict__["_"] = lambda s: s