Libgen not initializing when opening store - LibgenStore object has no attribute 'libgen'

[safurrier]

With CalibreLibgenStore 0.4 and Using Calibre 5 running on Docker linux container and also on OSX I get this error when trying to search Libgen.

I get this when navigating Get Books -> Stores -> Libgen Fiction
Previously this has worked by opening up Libgen in an external browser window but now this error results:

Linux:

calibre, version 5.3.0
ERROR: Unhandled exception: <b>AttributeError</b>:'LibgenStore' object has no attribute 'libgen'

calibre 5.3  embedded-python: True is64bit: True
Linux-4.4.59+-x86_64-with-glibc2.2.5 Linux ('64bit', '')
('Linux', '4.4.59+', '#25426 SMP PREEMPT Wed Jul 8 03:21:27 CST 2020')
Python 3.8.5
Interface language: None
Successfully initialized third party plugins: Libgen Fiction (0, 4, 0)
Traceback (most recent call last):
  File "calibre/gui2/actions/store.py", line 131, in open_store
  File "calibre_plugins.libgen_fiction.__init__", line 80, in open
    else self.libgen.base_url
AttributeError: 'LibgenStore' object has no attribute 'libgen'

OSX:

calibre, version 5.7.2
ERROR: Unhandled exception: <b>AttributeError</b>:'LibgenStore' object has no attribute 'libgen'

calibre 5.7.2  embedded-python: True is64bit: True
macOS-10.15.6-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '19.6.0', 'Darwin Kernel Version 19.6.0: Thu Jun 18 20:49:00 PDT 2020; root:xnu-6153.141.1~1/RELEASE_X86_64')
Python 3.8.5
OSX: ('10.15.6', ('', '', ''), 'x86_64')
Interface language: None
Successfully initialized third party plugins: Libgen Fiction (0, 4, 0)
Traceback (most recent call last):
  File "calibre/gui2/actions/store.py", line 131, in open_store
  File "calibre_plugins.libgen_fiction.__init__", line 80, in open
    else self.libgen.base_url
AttributeError: 'LibgenStore' object has no attribute 'libgen'

It looks like it's trying to open the browser before initializing the LibgenFiction object attached by calling the genesis() method. Adding a attribute check before opening the url fixes this (for me at least)

[fallaciousreasoning]

Should be fixed by #6