无法将请求模块加载到Kivy iOS应用

Question

When I try to load the requests module into my Python code with

import requests

and then build the Kivy app using the toolchain, it crashes on in the iOS simulator. (I am developing on macOS.)

I have used

kivy -m pip install requests

which appears to install requests into the Kivy virtualenv, but it still crashes the iOS simulator.

I have even tried copying the requests library itself and placing it in my project as a subdirectory. In this instance it will run correctly in macOS but still crash in the iOS simulator.

When I say "it crashes", what I mean is that the simulator tries to open the app, then closes it after showing a black screen for about one second. If I do not include the "import requests" line, the app opens fine and goes to the correct initial screen. Here are the Xcode logs from the simulator run:

2016-10-28 22:25:57.433587 mentat[9488:154501] bundleid: org.kivy.mentat, enable_level: 0, persist_level: 0, propagate_with_activity: 0
2016-10-28 22:25:57.442428 mentat[9488:154501] subsystem: com.apple.siri, category: Intents, enable_level: 1, persist_level: 1, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2016-10-28 22:25:57.486633 mentat[9488:154643] subsystem: com.apple.UIKit, category: HIDEventFiltered, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2016-10-28 22:25:57.516511 mentat[9488:154643] subsystem: com.apple.UIKit, category: HIDEventIncoming, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2016-10-28 22:25:57.535126 mentat[9488:154640] subsystem: com.apple.BaseBoard, category: MachPort, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2016-10-28 22:25:57.592160 mentat[9488:154501] subsystem: com.apple.UIKit, category: StatusBar, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2016-10-28 22:25:57.594924 mentat[9488:154501] subsystem: com.apple.BackBoardServices.fence, category: App, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2016-10-28 22:25:57.794404 mentat[9488:154501] subsystem: com.apple.BackBoardServices.fence, category: Workspace, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2016-10-28 22:25:57.796 mentat[9488:154501] Available orientation: KIVY_ORIENTATION=LandscapeLeft LandscapeRight Portrait PortraitUpsideDown
2016-10-28 22:25:57.797 mentat[9488:154501] PythonHome is: /Users/matt/Library/Developer/CoreSimulator/Devices/529262BC-AA42-4190-8212-77C1D2723BA7/data/Containers/Bundle/Application/F52EAFF5-5458-4121-A7A9-749796FB82AF/mentat.app
2016-10-28 22:25:57.798 mentat[9488:154501] Initializing python
2016-10-28 22:25:57.955 mentat[9488:154501] Running main.pyo: /Users/matt/Library/Developer/CoreSimulator/Devices/529262BC-AA42-4190-8212-77C1D2723BA7/data/Containers/Bundle/Application/F52EAFF5-5458-4121-A7A9-749796FB82AF/mentat.app/YourApp/main.pyo
2016-10-28 22:25:57.999 mentat[9488:154501] Application quit abnormally!
2016-10-28 22:25:58.004 mentat[9488:154501] Leaving

I don't find the messages to be informative. Perhaps there is a logging option I can turn on?

Answer 1

I've discovered that the current version of requests (2.11.1) doesn't work with iOS, or at least not with Kivy-iOS. Manually cloning requests2.9.1 and putting it in my project directory solved the problem.