I have the same issue

MacOS Catalina
Python 3.7
fbs 0.8.4
PyInstaller 3.5
PyQt5 5.14.0

This ("internet-enable") is a feature removed in MacOS Catalina. See electron-userland/electron-builder#4405 for more context.

I have the same issue.
how to fix it?
@sneakypete81
@alexrockhill
@alexandramartinez

It works

import platform
from fbs import path, SETTINGS
from os import replace, remove
from os.path import join, dirname, exists
from subprocess import check_call, DEVNULL

def create_installer_mac():
app_name = SETTINGS['app_name']
dest = path('target/${installer}')
dest_existed = exists(dest)
if dest_existed:
dest_bu = dest + '.bu'
replace(dest, dest_bu)
try:
pdata = [
join(dirname(file), 'create-dmg', 'create-dmg'),
'--volname', app_name,
'--app-drop-link', '170', '10',
'--icon', app_name + '.app', '0', '10',
dest,
path('${freeze_dir}')
]
if platform.system() == 'Darwin' and int(platform.platform()[7:][:2]) >= 19:
pdata.insert(1,'--no-internet-enable')
check_call(pdata, stdout=DEVNULL)
except BaseException:
if dest_existed:
replace(dest_bu, dest)
raise
else:
if dest_existed:
remove(dest_bu)

@mherrmann

Sorry, I can't read this. If you'd like to submit a Pull Request @iwctwbai I'd be happy to take a look at it. Thanks!

I think he added

if platform.system() == 'Darwin' and int(platform.platform()[7:][:2]) >= 19:
    pdata.insert(1,'--no-internet-enable')

in fbs/fbs/installer/mac/init.py
and pdata is original paramter to "check_call" function

Properly formatted, the file fbs/installer/mac/__init__.py should contain:

import platform
from fbs import path, SETTINGS
from os import replace, remove
from os.path import join, dirname, exists
from subprocess import check_call, DEVNULL


def create_installer_mac():
    app_name = SETTINGS['app_name']
    dest = path('target/${installer}')
    dest_existed = exists(dest)
    if dest_existed:
        dest_bu = dest + '.bu'
        replace(dest, dest_bu)
    try:
        pdata = [
            join(dirname(__file__), 'create-dmg', 'create-dmg'),
            '--volname', app_name,
            '--app-drop-link', '170', '10',
            '--icon', app_name + '.app', '0', '10',
            dest,
            path('${freeze_dir}')
        ]
        if platform.system() == 'Darwin' and int(
            platform.platform()[7:][:2]) >= 19:
            pdata.insert(1, '--no-internet-enable')

            check_call(pdata, stdout = DEVNULL)
    except BaseException:
        if dest_existed:
            replace(dest_bu, dest)
        raise
    else:
        if dest_existed:
            remove(dest_bu)

Thank you @komodovaran.

The code should use is_mac() from module fbs_runtime.platform instead of platform.system() == 'Darwin' and platform.mac_ver instead of platform.platform. I'd also remove the BaseException.

If someone creates a Pull Request with these changes, I'd be happy to merge them into fbs.