Buildozer command fails: Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate

[mgiessing]

Versions

• Python: 3.7
• OS: Ubuntu 18.04 (VirtualBox) / HostOS: Windows 10 - 1909
• Buildozer: 0.11

Description

I want to package my App for usage on Android, but it fails with the given output (see below). From my understanding it looks like it is related to pip so I already updated pip3 to the newest version, but this didn't help yet!

Any help appreciated! :-)

buildozer.spec

Command:

buildozer android debug deploy run

Spec file:

[app]

# (str) Title of your application
title = Vocabulary Trainer 

# (str) Package name
package.name = vocabtrainer

# (str) Package domain (needed for android/ios packaging)
package.domain = org.test

# (str) Source code where the main.py live
source.dir = .

# (list) Source files to include (let empty to include all the files)
source.include_exts = py,png,jpg,kv,atlas,csv,xls,xlsx

# (list) List of inclusions using pattern matching
#source.include_patterns = assets/*,images/*.png

# (list) Source files to exclude (let empty to not exclude anything)
#source.exclude_exts = spec

# (list) List of directory to exclude (let empty to not exclude anything)
#source.exclude_dirs = tests, bin

# (list) List of exclusions using pattern matching
#source.exclude_patterns = license,images/*/*.jpg

# (str) Application versioning (method 1)
version = 0.1

# (str) Application versioning (method 2)
# version.regex = __version__ = ['"](.*)['"]
# version.filename = %(source.dir)s/main.py

# (list) Application requirements
# comma separated e.g. requirements = sqlite3,kivy
requirements = python3,kivy,pandas,unidecode

# (str) Custom source folders for requirements
# Sets custom source for any requirements with recipes
# requirements.source.kivy = ../../kivy

# (list) Garden requirements
#garden_requirements =

# (str) Presplash of the application
#presplash.filename = %(source.dir)s/data/presplash.png

# (str) Icon of the application
#icon.filename = %(source.dir)s/data/icon.png

# (str) Supported orientation (one of landscape, sensorLandscape, portrait or all)
orientation = portrait

# (list) List of service to declare
#services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

#
# OSX Specific
#

#
# author = © Copyright Info

# change the major version of python used by the app
osx.python_version = 3

# Kivy version to use
osx.kivy_version = 1.11.1

#
# Android specific
#

# (bool) Indicate if the application should be fullscreen or not
fullscreen = 0

# (string) Presplash background color (for new android toolchain)
# Supported formats are: #RRGGBB #AARRGGBB or one of the following names:
# red, blue, green, black, white, gray, cyan, magenta, yellow, lightgray,
# darkgray, grey, lightgrey, darkgrey, aqua, fuchsia, lime, maroon, navy,
# olive, purple, silver, teal.
#android.presplash_color = #FFFFFF

# (list) Permissions
#android.permissions = INTERNET

# (int) Target Android API, should be as high as possible.
#android.api = 27

# (int) Minimum API your APK will support.
#android.minapi = 21

# (int) Android SDK version to use
#android.sdk = 20

# (str) Android NDK version to use
#android.ndk = 19b

# (int) Android NDK API to use. This is the minimum API your app will support, it should usually match android.minapi.
#android.ndk_api = 21

# (bool) Use --private data storage (True) or --dir public storage (False)
#android.private_storage = True

# (str) Android NDK directory (if empty, it will be automatically downloaded.)
#android.ndk_path =

# (str) Android SDK directory (if empty, it will be automatically downloaded.)
#android.sdk_path =

# (str) ANT directory (if empty, it will be automatically downloaded.)
#android.ant_path =

# (bool) If True, then skip trying to update the Android sdk
# This can be useful to avoid excess Internet downloads or save time
# when an update is due and you just want to test/build your package
# android.skip_update = False

# (bool) If True, then automatically accept SDK license
# agreements. This is intended for automation only. If set to False,
# the default, you will be shown the license when first running
# buildozer.
# android.accept_sdk_license = False

# (str) Android entry point, default is ok for Kivy-based app
#android.entrypoint = org.renpy.android.PythonActivity

# (str) Android app theme, default is ok for Kivy-based app
# android.apptheme = "@android:style/Theme.NoTitleBar"

# (list) Pattern to whitelist for the whole project
#android.whitelist =

# (str) Path to a custom whitelist file
#android.whitelist_src =

# (str) Path to a custom blacklist file
#android.blacklist_src =

# (list) List of Java .jar files to add to the libs so that pyjnius can access
# their classes. Don't add jars that you do not need, since extra jars can slow
# down the build process. Allows wildcards matching, for example:
# OUYA-ODK/libs/*.jar
#android.add_jars = foo.jar,bar.jar,path/to/more/*.jar

# (list) List of Java files to add to the android project (can be java or a
# directory containing the files)
#android.add_src =

# (list) Android AAR archives to add (currently works only with sdl2_gradle
# bootstrap)
#android.add_aars =

# (list) Gradle dependencies to add (currently works only with sdl2_gradle
# bootstrap)
#android.gradle_dependencies =

# (list) add java compile options
# this can for example be necessary when importing certain java libraries using the 'android.gradle_dependencies' option
# see https://developer.android.com/studio/write/java8-support for further information
# android.add_compile_options = "sourceCompatibility = 1.8", "targetCompatibility = 1.8"

# (list) Gradle repositories to add {can be necessary for some android.gradle_dependencies}
# please enclose in double quotes 
# e.g. android.gradle_repositories = "maven { url 'https://kotlin.bintray.com/ktor' }"
#android.add_gradle_repositories =

# (list) packaging options to add 
# see https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.PackagingOptions.html
# can be necessary to solve conflicts in gradle_dependencies
# please enclose in double quotes 
# e.g. android.add_packaging_options = "exclude 'META-INF/common.kotlin_module'", "exclude 'META-INF/*.kotlin_module'"
#android.add_gradle_repositories =

# (list) Java classes to add as activities to the manifest.
#android.add_activities = com.example.ExampleActivity

# (str) OUYA Console category. Should be one of GAME or APP
# If you leave this blank, OUYA support will not be enabled
#android.ouya.category = GAME

# (str) Filename of OUYA Console icon. It must be a 732x412 png image.
#android.ouya.icon.filename = %(source.dir)s/data/ouya_icon.png

# (str) XML file to include as an intent filters in <activity> tag
#android.manifest.intent_filters =

# (str) launchMode to set for the main activity
#android.manifest.launch_mode = standard

# (list) Android additional libraries to copy into libs/armeabi
#android.add_libs_armeabi = libs/android/*.so
#android.add_libs_armeabi_v7a = libs/android-v7/*.so
#android.add_libs_arm64_v8a = libs/android-v8/*.so
#android.add_libs_x86 = libs/android-x86/*.so
#android.add_libs_mips = libs/android-mips/*.so

# (bool) Indicate whether the screen should stay on
# Don't forget to add the WAKE_LOCK permission if you set this to True
#android.wakelock = False

# (list) Android application meta-data to set (key=value format)
#android.meta_data =

# (list) Android library project to add (will be added in the
# project.properties automatically.)
#android.library_references =

# (list) Android shared libraries which will be added to AndroidManifest.xml using <uses-library> tag
#android.uses_library =

# (str) Android logcat filters to use
#android.logcat_filters = *:S python:D

# (bool) Copy library instead of making a libpymodules.so
#android.copy_libs = 1

# (str) The Android arch to build for, choices: armeabi-v7a, arm64-v8a, x86, x86_64
android.arch = armeabi-v7a

#
# Python for android (p4a) specific
#

# (str) python-for-android fork to use, defaults to upstream (kivy)
#p4a.fork = kivy

# (str) python-for-android branch to use, defaults to master
#p4a.branch = master

# (str) python-for-android git clone directory (if empty, it will be automatically cloned from github)
#p4a.source_dir =

# (str) The directory in which python-for-android should look for your own build recipes (if any)
#p4a.local_recipes =

# (str) Filename to the hook for p4a
#p4a.hook =

# (str) Bootstrap to use for android builds
# p4a.bootstrap = sdl2

# (int) port number to specify an explicit --port= p4a argument (eg for bootstrap flask)
#p4a.port =


#
# iOS specific
#

# (str) Path to a custom kivy-ios folder
#ios.kivy_ios_dir = ../kivy-ios
# Alternately, specify the URL and branch of a git checkout:
ios.kivy_ios_url = https://github.com/kivy/kivy-ios
ios.kivy_ios_branch = master

# Another platform dependency: ios-deploy
# Uncomment to use a custom checkout
#ios.ios_deploy_dir = ../ios_deploy
# Or specify URL and branch
ios.ios_deploy_url = https://github.com/phonegap/ios-deploy
ios.ios_deploy_branch = 1.7.0

# (str) Name of the certificate to use for signing the debug version
# Get a list of available identities: buildozer ios list_identities
#ios.codesign.debug = "iPhone Developer: <lastname> <firstname> (<hexstring>)"

# (str) Name of the certificate to use for signing the release version
#ios.codesign.release = %(ios.codesign.debug)s


[buildozer]

# (int) Log level (0 = error only, 1 = info, 2 = debug (with command output))
log_level = 2

# (int) Display warning if buildozer is run as root (0 = False, 1 = True)
warn_on_root = 1

# (str) Path to build artifact storage, absolute or relative to spec file
# build_dir = ./.buildozer

# (str) Path to build output (i.e. .apk, .ipa) storage
# bin_dir = ./bin

#    -----------------------------------------------------------------------------
#    List as sections
#
#    You can define all the "list" as [section:key].
#    Each line will be considered as a option to the list.
#    Let's take [app] / source.exclude_patterns.
#    Instead of doing:
#
#[app]
#source.exclude_patterns = license,data/audio/*.wav,data/images/original/*
#
#    This can be translated into:
#
#[app:source.exclude_patterns]
#license
#data/audio/*.wav
#data/images/original/*
#


#    -----------------------------------------------------------------------------
#    Profiles
#
#    You can extend section / key with a profile
#    For example, you want to deploy a demo version of your application without
#    HD content. You could first change the title to add "(demo)" in the name
#    and extend the excluded directories to remove the HD content.
#
#[app@demo]
#title = My Application (demo)
#
#[app:source.exclude_patterns@demo]
#images/hd/*
#
#    Then, invoke the command line with the "demo" profile:
#
#buildozer --profile demo android debug

Logs

ERROR: No matching distribution found for certifi (from -r requirements.txt (line 1))
Exception information:
Traceback (most recent call last):
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 188, in main
    status = self.run(options, args)
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/commands/install.py", line 345, in run
    resolver.resolve(requirement_set)
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 196, in resolve
    self._resolve_one(requirement_set, req)
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 359, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 305, in _get_abstract_dist_for
    abstract_dist = self.preparer.prepare_linked_requirement(
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/operations/prepare.py", line 134, in prepare_linked_requirement
    req.populate_link(finder, upgrade_allowed, require_hashes)
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/req/req_install.py", line 211, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.8/site-packages/pip/_internal/index.py", line 1227, in find_requirement
    raise DistributionNotFound(
pip._internal.exceptions.DistributionNotFound: No matching distribution found for certifi (from -r requirements.txt (line 1))
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
1 location(s) to search for versions of pip:
* https://pypi.org/simple/pip/
Getting page https://pypi.org/simple/pip/
Found index url https://pypi.org/simple
Looking up "https://pypi.org/simple/pip/" in the cache
Request header has "max_age" as 0, cache bypassed
Starting new HTTPS connection (1): pypi.org:443
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
Given no hashes to check 0 links for project 'pip': discarding no candidates


  STDERR:

# Command failed: /usr/bin/python3 -m pythonforandroid.toolchain create --dist_name=vocabtrainer --bootstrap=sdl2 --requirements=python3,kivy,pandas,unidecode --arch armeabi-v7a --copy-libs --color=always --storage-dir="/home/<user>/kivy/VokabelTrainer/.buildozer/android/platform/build-armeabi-v7a" --ndk-api=21
# ENVIRONMENT:
#     CLUTTER_IM_MODULE = 'xim'
#     LS_COLORS = 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:'
#     LC_MEASUREMENT = 'de_DE.UTF-8'
#     LESSCLOSE = '/usr/bin/lesspipe %s %s'
#     LC_PAPER = 'de_DE.UTF-8'
#     LC_MONETARY = 'de_DE.UTF-8'
#     XDG_MENU_PREFIX = 'gnome-'
#     LANG = 'en_US.UTF-8'
#     DISPLAY = ':0'
#     GNOME_SHELL_SESSION_MODE = 'ubuntu'
#     COLORTERM = 'truecolor'
#     USERNAME = '<user>'
#     XDG_VTNR = '1'
#     SSH_AUTH_SOCK = '/run/user/1000/keyring/ssh'
#     MANDATORY_PATH = '/usr/share/gconf/ubuntu.mandatory.path'
#     LC_NAME = 'de_DE.UTF-8'
#     XDG_SESSION_ID = '1'
#     USER = '<user>'
#     DESKTOP_SESSION = 'ubuntu'
#     QT4_IM_MODULE = 'xim'
#     TEXTDOMAINDIR = '/usr/share/locale/'
#     GNOME_TERMINAL_SCREEN = '/org/gnome/Terminal/screen/f2fc0486_a675_4a6d_982c_6bb8553ca8ce'
#     DEFAULTS_PATH = '/usr/share/gconf/ubuntu.default.path'
#     PWD = '/home/<user>/kivy/VokabelTrainer'
#     HOME = '/home/<user>'
#     TEXTDOMAIN = 'im-config'
#     SSH_AGENT_PID = '1264'
#     QT_ACCESSIBILITY = '1'
#     XDG_SESSION_TYPE = 'x11'
#     XDG_DATA_DIRS = '/usr/share/ubuntu:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop'
#     XDG_SESSION_DESKTOP = 'ubuntu'
#     LC_ADDRESS = 'de_DE.UTF-8'
#     LC_NUMERIC = 'de_DE.UTF-8'
#     GTK_MODULES = 'gail:atk-bridge'
#     WINDOWPATH = '1'
#     VTE_VERSION = '5202'
#     TERM = 'xterm-256color'
#     SHELL = '/bin/bash'
#     QT_IM_MODULE = 'xim'
#     XMODIFIERS = '@im=ibus'
#     IM_CONFIG_PHASE = '2'
#     XDG_CURRENT_DESKTOP = 'ubuntu:GNOME'
#     GPG_AGENT_INFO = '/run/user/1000/gnupg/S.gpg-agent:0:1'
#     GNOME_TERMINAL_SERVICE = ':1.61'
#     XDG_SEAT = 'seat0'
#     SHLVL = '1'
#     LC_TELEPHONE = 'de_DE.UTF-8'
#     GDMSESSION = 'ubuntu'
#     GNOME_DESKTOP_SESSION_ID = 'this-is-deprecated'
#     LOGNAME = '<user>'
#     DBUS_SESSION_BUS_ADDRESS = 'unix:path=/run/user/1000/bus'
#     XDG_RUNTIME_DIR = '/run/user/1000'
#     XAUTHORITY = '/run/user/1000/gdm/Xauthority'
#     XDG_CONFIG_DIRS = '/etc/xdg/xdg-ubuntu:/etc/xdg'
#     PATH = '/home/<user>/.buildozer/android/platform/apache-ant-1.9.4/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/<user>/.local/bin/'
#     LC_IDENTIFICATION = 'de_DE.UTF-8'
#     SESSION_MANAGER = 'local/<user>-VirtualBox:@/tmp/.ICE-unix/1126,unix/<user>-VirtualBox:/tmp/.ICE-unix/1126'
#     LESSOPEN = '| /usr/bin/lesspipe %s'
#     GTK_IM_MODULE = 'ibus'
#     LC_TIME = 'de_DE.UTF-8'
#     OLDPWD = '/home/<user>'
#     _ = '/usr/local/bin/buildozer'
#     PACKAGES_PATH = '/home/<user>/.buildozer/android/packages'
#     ANDROIDSDK = '/home/<user>/.buildozer/android/platform/android-sdk'
#     ANDROIDNDK = '/home/<user>/.buildozer/android/platform/android-ndk-r19c'
#     ANDROIDAPI = '27'
#     ANDROIDMINAPI = '21'
# 
# Buildozer failed to execute the last command
# The error might be hidden in the log above this error
# Please read the full log, and search for it before
# raising an issue with buildozer itself.
# In case of a bug report, please add a full log with log_level = 2

[AndreMiras]

I think this is a dup of kivy/python-for-android#2178

[mgiessing]

Thanks for your quick answer!
Yes, it looks similar/related, but installing libssl-dev didn't solve the problem unfortunately. The same error persists.

[AndreMiras]

Please share the full logs including your buildozer android clean command and the buildozer android debug command and log so we can help to debug

[mgiessing]

Okay, very strange behaviour - although I didn't change anything in the code compared to yesterday I was able to compile the APK now.
Only thing I did different now was to just do buildozer android debug (after buildozer android clean) instead of buildozer android debug deploy run and I restarted my Laptop/VM over night.
Anyway happy it works now and I can debug other problems which occur on phone compared to PC :)

[AndreMiras]

Probably you missed the clean the first time, thanks for the update

[mgiessing]

Yes, I never used clean before, but it was also not mentioned in this buildozer documentation:
https://buildozer.readthedocs.io/en/latest/quickstart.html#init-and-build-for-android

Can you briefly explain when I have to use clean? Everytime before I compile the APK? Or just once for every 'new' project? Unfortunately I cannot find sth. in the docs - and thanks a lot for your support!

[AndreMiras]

Answer is it depends, but we can (bias) resume it as, every time you change a requirement