Use third-party Libary

[Fischchen]

Hey guys,
i've been trying to make a simple plugin for calibre which uses the GPIO pins of my Raspberry. I wrote a simple plugin but when it try to import it I get the error message

Python function terminated unexpectedly
  No module named gpiozero (Error Code: 1)
 Traceback (most recent call last):
  File "site.py", line 114, in main
  File "site.py", line 88, in run_entry_point
  File "site-packages\calibre\customize\ui.py", line 792, in main
  File "site-packages\calibre\customize\ui.py", line 752, in build_plugin
  File "site-packages\calibre\customize\ui.py", line 472, in add_plugin
  File "site-packages\calibre\customize\ui.py", line 61, in load_plugin
  File "site-packages\calibre\customize\zipplugin.py", line 203, in load
  File "importlib\__init__.py", line 37, in import_module
  File "site-packages\calibre\customize\zipplugin.py", line 185, in load_module
  File "calibre_plugins.dummy1.__init__", line 2, in <module>
ImportError: No module named gpioze

Can somebody please help me?!?!? I have to be done with this until next week, so please somebody help me!

Thanks in advance
Fischchen

ps:sorry for my english im german

[DaltonST]

Calibre knows nothing about anything outside of its ecosystem, so you must make external-to-Calibre files visible to your plugin yourself.

For tiny packages (e.g. a useful python module that you need and perhaps found on Github), you could simply hard-copy it into your plugin's folder to make it a private copy.

Example: from .fuzzywuzzy import fuzz, string_processing, utils

For non-trivial packages, you might try (never needed it myself, so no guarantees) something like this:

import sys
sys.path.append('/path_to/folderhavingyourfile')
import yourfile

Personally, I would defer any imports until the user invokes an action in ui.py to avoid premature allocation and use of memory. In other words, do not import it at the top of ui.py. Make the user click a pushbutton or cause some other event that requires that the file be imported for the first time before continuing.



DaltonST