How to use the docassemble.base.util.word function in docassemble

else:
        package_entry = Package.query.filter_by(name=packagename).first()
        if package_entry is not None:
            if package_entry.type == 'zip' and package_entry.upload is not None:
                SavedFile(package_entry.upload).delete()
            package_entry.version += 1
            package_entry.giturl = giturl
            package_entry.upload = None
            package_entry.limitation = None
            package_entry.type = 'git'
            db.session.commit()
    ok, logmessages = docassemble.webapp.update.check_for_updates()
    if ok:
        trigger_update(except_for=hostname)
        restart_wsgi()
        flash(word("Install successful"), 'success')
    else:
        flash(word("Install not successful"), 'error')
    flash('pip log: ' + str(logmessages), 'info')
    # pip_log = tempfile.NamedTemporaryFile()
    # commands = ['install', '--quiet', '--egg', '--src=' + tempfile.mkdtemp(), '--upgrade', '--log-file=' + pip_log.name, 'git+' + giturl + '.git#egg=' + packagename]
    # returnval = pip.main(commands)
    # if returnval > 0:
    #     with open(pip_log.name) as x: logfilecontents = x.read()
    #     flash("pip " + " ".join(commands) + "<pre>" + str(logfilecontents) + "</pre>", 'error')
    return

<ul class="nav navbar-nav navbar-right">
"""
    if show_login:
        if current_user.is_anonymous:
            #logmessage("is_anonymous is " + str(current_user.is_anonymous))
            navbar += '            <li><a href="' + url_for('user.login', next=url_for('index')) + '">' + word('Sign in') + '</a></li>' + "\n"
        else:
            navbar += '            <li class="dropdown"><a data-toggle="dropdown" class="dropdown-toggle" href="#">' + current_user.email + '<b class="caret"></b></a><ul class="dropdown-menu">'
            if current_user.has_role('admin', 'developer'):
                navbar +='<li><a href="' + url_for('package_page') + '">' + word('Package Management') + '</a></li>'
                navbar +='<li><a href="' + url_for('logs') + '">' + word('Logs') + '</a></li>'
                navbar +='<li><a href="' + url_for('playground_page') + '">' + word('Playground') + '</a></li>'
                if current_user.has_role('admin'):
                    navbar +='<li><a href="' + url_for('user_list') + '">' + word('User List') + '</a></li>'
                    navbar +='<li><a href="' + url_for('privilege_list') + '">' + word('Privileges List') + '</a></li>'
                    navbar +='<li><a href="' + url_for('config_page') + '">' + word('Configuration') + '</a></li>'
            navbar += '<li><a href="' + url_for('user_profile_page') + '">' + word('Profile') + '</a></li><li><a href="' + url_for('user.logout') + '">' + word('Sign out') + '</a></li></ul></li>'
    else:
        navbar += '            <li><a href="' + url_for('exit') + '">' + word('Exit') + '</a></li>'
    navbar += """\
          </ul>
        
      
    
"""
    return(navbar)

@app.route('/config', methods=['GET', 'POST'])
@login_required
@roles_required(['admin'])
def config_page():
    form = ConfigForm(request.form, current_user)
    if request.method == 'POST':
        if form.submit.data and form.config_content.data:
            if S3_ENABLED:
                key = s3.get_key('config.yml')
                key.set_contents_from_string(form.config_content.data)
            with open(daconfig['config_file'], 'w') as fp:
                fp.write(form.config_content.data)
                flash(word('The configuration file was saved.'), 'success')
            restart_wsgi()
        elif form.cancel.data:
            flash(word('Configuration not updated.'), 'info')
        else:
            flash(word('Configuration not updated.  There was an error.'), 'error')
        return redirect(url_for('index'))
    with open(daconfig['config_file'], 'r') as fp:
        content = fp.read()
        return render_template('pages/config.html', extra_css=Markup('\n    '), extra_js=Markup('\n    \n    \n    '), form=form), 200
    abort(404)

def process_attachment(self, target):
        metadata = dict()
        variable_name = str()
        defs = list()
        options = dict()
        if type(target) is dict:
            if 'language' in target:
                options['language'] = target['language']
            if 'filename' not in target:
                target['filename'] = word("Document")
            if 'name' not in target:
                target['name'] = word("Document")
            if 'description' not in target:
                target['description'] = ''
            if 'initial yaml' in target:
                if type(target['initial yaml']) is not list:
                    target['initial yaml'] = [target['initial yaml']]
                options['initial_yaml'] = list()
                for yaml_file in target['initial yaml']:
                    if type(yaml_file) is not str:
                        raise DAError('An initial yaml file must be a string.' + self.idebug(target))
                    options['initial_yaml'].append(docassemble.base.util.package_template_filename(yaml_file, package=self.package))
            if 'additional yaml' in target:
                if type(target['additional yaml']) is not list:
                    target['additional yaml'] = [target['additional yaml']]
                options['additional_yaml'] = list()

navbar += """\
          
          <ul class="nav navbar-nav navbar-right">
"""
    if show_login:
        if current_user.is_anonymous:
            #logmessage("is_anonymous is " + str(current_user.is_anonymous))
            navbar += '            <li><a href="' + url_for('user.login', next=url_for('index')) + '">' + word('Sign in') + '</a></li>' + "\n"
        else:
            navbar += '            <li class="dropdown"><a data-toggle="dropdown" class="dropdown-toggle" href="#">' + current_user.email + '<b class="caret"></b></a><ul class="dropdown-menu">'
            if current_user.has_role('admin', 'developer'):
                navbar +='<li><a href="' + url_for('package_page') + '">' + word('Package Management') + '</a></li>'
                navbar +='<li><a href="' + url_for('logs') + '">' + word('Logs') + '</a></li>'
                navbar +='<li><a href="' + url_for('playground_page') + '">' + word('Playground') + '</a></li>'
                if current_user.has_role('admin'):
                    navbar +='<li><a href="' + url_for('user_list') + '">' + word('User List') + '</a></li>'
                    navbar +='<li><a href="' + url_for('privilege_list') + '">' + word('Privileges List') + '</a></li>'
                    navbar +='<li><a href="' + url_for('config_page') + '">' + word('Configuration') + '</a></li>'
            navbar += '<li><a href="' + url_for('user_profile_page') + '">' + word('Profile') + '</a></li><li><a href="' + url_for('user.logout') + '">' + word('Sign out') + '</a></li></ul></li>'
    else:
        navbar += '            <li><a href="' + url_for('exit') + '">' + word('Exit') + '</a></li>'
    navbar += """\
          </ul>
        
      
    
"""
    return(navbar)

if (form.submit.data or form.run.data) and form.playground_content.data:
            if form.original_playground_name.data and form.original_playground_name.data != the_file:
                old_filename = os.path.join(playground.directory, form.original_playground_name.data)
                if os.path.isfile(old_filename):
                    os.remove(old_filename)
                    files = sorted([f for f in os.listdir(playground.directory) if os.path.isfile(os.path.join(playground.directory, f))])
            the_time = time.strftime('%H:%M:%S %Z', time.localtime())
            with open(filename, 'w') as fp:
                fp.write(form.playground_content.data)
            if form.submit.data:
                flash(word('The playground was saved at') + ' ' + the_time + '.', 'success')
            else:
                flash(word('The playground was saved at') + ' ' + the_time + '.  ' + word('Running in other tab.'), 'info')
                javascript = "\n    window.open(" + repr(url_for('index', i='/playground/' + the_file)) + ", '_blank' );"
        else:
            flash(word('Playground not saved.  There was an error.'), 'error')
    content = ''
    if the_file:
        playground.finalize()
        with open(filename, 'r') as fp:
            form.original_playground_name.data = the_file
            form.playground_name.data = the_file
            content = fp.read()
            #if not form.playground_content.data:
                #form.playground_content.data = content
    elif form.playground_content.data:
        content = form.playground_content.data
    return render_template('pages/playground.html', extra_css=Markup('\n    '), extra_js=Markup('\n    \n    \n    \n    '), form=form, files=files, current_file=the_file, content=content), 200

@app.route('/config', methods=['GET', 'POST'])
@login_required
@roles_required(['admin'])
def config_page():
    form = ConfigForm(request.form, current_user)
    if request.method == 'POST':
        if form.submit.data and form.config_content.data:
            if S3_ENABLED:
                key = s3.get_key('config.yml')
                key.set_contents_from_string(form.config_content.data)
            with open(daconfig['config_file'], 'w') as fp:
                fp.write(form.config_content.data)
                flash(word('The configuration file was saved.'), 'success')
            restart_wsgi()
        elif form.cancel.data:
            flash(word('Configuration not updated.'), 'info')
        else:
            flash(word('Configuration not updated.  There was an error.'), 'error')
        return redirect(url_for('index'))
    with open(daconfig['config_file'], 'r') as fp:
        content = fp.read()
        return render_template('pages/config.html', extra_css=Markup('\n    '), extra_js=Markup('\n    \n    \n    '), form=form), 200
    abort(404)

recipients = list()
    if request.method == 'POST':
        for user in User.query.filter_by(active=True).all():
            for role in user.roles:
                if role.name == 'admin':
                    recipients.append(user.email)
        url = request.base_url
        url = re.sub(r'^(https?://[^/]+)/.*', r'\1', url)
        body = "User " + str(current_user.email) + " (" + str(current_user.id) + ") has requested developer privileges.\n\n"
        if form.reason.data:
            body += "Reason given: " + str(form.reason.data) + "\n\n"
        body += "Go to " + str(url) + url_for('edit_user_profile_page', id=current_user.id) + " to change the user's privileges."
        from flask_mail import Message
        msg = Message("Request for developer account from " + str(current_user.email), recipients=recipients, body=body)
        if not len(recipients):
            flash(word('No administrators could be found.'), 'error')
        else:
            try:
                mail.send(msg)
                flash(word('Your request was submitted.'), 'success')
            except:
                flash(word('We were unable to submit your request.'), 'error')
        return redirect(url_for('index'))
    return render_template('users/request_developer.html', form=form)

navbar += """\
            <li><a aria-controls="source" aria-expanded="false" data-toggle="collapse" href="#source" id="sourcetoggle">""" + word('Source') + """</a></li>
"""
    navbar += """\
          
          <ul class="nav navbar-nav navbar-right">
"""
    if show_login:
        if current_user.is_anonymous:
            #logmessage("is_anonymous is " + str(current_user.is_anonymous))
            navbar += '            <li><a href="' + url_for('user.login', next=url_for('index')) + '">' + word('Sign in') + '</a></li>' + "\n"
        else:
            navbar += '            <li class="dropdown"><a data-toggle="dropdown" class="dropdown-toggle" href="#">' + current_user.email + '<b class="caret"></b></a><ul class="dropdown-menu">'
            if current_user.has_role('admin', 'developer'):
                navbar +='<li><a href="' + url_for('package_page') + '">' + word('Package Management') + '</a></li>'
                navbar +='<li><a href="' + url_for('logs') + '">' + word('Logs') + '</a></li>'
                navbar +='<li><a href="' + url_for('playground_page') + '">' + word('Playground') + '</a></li>'
                if current_user.has_role('admin'):
                    navbar +='<li><a href="' + url_for('user_list') + '">' + word('User List') + '</a></li>'
                    navbar +='<li><a href="' + url_for('privilege_list') + '">' + word('Privileges List') + '</a></li>'
                    navbar +='<li><a href="' + url_for('config_page') + '">' + word('Configuration') + '</a></li>'
            navbar += '<li><a href="' + url_for('user_profile_page') + '">' + word('Profile') + '</a></li><li><a href="' + url_for('user.logout') + '">' + word('Sign out') + '</a></li></ul></li>'
    else:
        navbar += '            <li><a href="' + url_for('exit') + '">' + word('Exit') + '</a></li>'
    navbar += """\
          </ul>
        
      
    
"""
    return(navbar)