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kivy / python-for-android

Turn your Python application into an Android APK
https://python-for-android.readthedocs.io
MIT License
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sympy build failed with buildozer (target Android). #2303

Open buybuyxyz opened 4 years ago

buybuyxyz commented 4 years ago

I cannot add sympy when I build apk file with buildozer.

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// REPLACE ME: What are you trying to get done, what has happened, what went wrong, and what did you expect? I cannot add sympy when I build apk file with buildozer. Error

buildozer.spec

Command:

buildozer android debug deploy run 2>&1 | tee log.txt

Spec file:

[app]

# (str) Title of your application
title = My Application

# (str) Package name
package.name = sympytest02

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

# (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

# (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,sympy

# (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 = 1.9.1

#
# 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

# (int) overrides automatic versionCode computation (used in build.gradle)
# this is not the same as app version and should only be edited if you know what you're doing
# android.numeric_version = 1

#
# 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
p4a.branch = develop

# (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

.......................
[app]

# (str) Title of your application
title = My Application

# (str) Package name
package.name = sympytest02

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

# (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

# (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,sympy

# (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 = 1.9.1

#
# 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

# (int) overrides automatic versionCode computation (used in build.gradle)
# this is not the same as app version and should only be edited if you know what you're doing
# android.numeric_version = 1

#
# 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
p4a.branch = develop

# (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
Sahil-pixel commented 4 years ago

i have same problem..but where is your ..error log?

Sahil-pixel commented 4 years ago

i think problem is mpmath there is no mpmath recipe

RobertFlatt commented 4 years ago

Yes, I think this is a bug too.

It occurs because the sympy recipe correctly specifies depends = ['mpmath'] In recipe.py depends is defined as:

depends = []
    '''A list containing the names of any recipes that this recipe depends on.
    '''

However mpmath does not have a recipe because it is pure Python, so the depends is ignored and mpmath is not scheduled to be installed in the app till after sympy. The synpy build then fails because mpmath is not yet installed.

python_depends does not address the issue

python_depends = []
    '''A list of pure-Python packages that this package requires. These
    packages will NOT be available at build time, but will be added to the
    list of pure-Python packages to install via pip. If you need these packages
    at build time, you must create a recipe.'''

From the outside this looks like a dependency graph error, with its roots in the definition of depends. I'd suggest 'or pure Python module' be appended, but one could imagine an mpmath recipe as a solution (see below)

The issue arises in this case because sympy is pure Python, but it needs a recipe because it's Python code has to be patched. But the issue is clearly more general than this one case.

To replicate:

from kivy.app import App
from kivy.uix.label import Label
from sympy import Symbol, integrate

class MyApp(App):
    def build(self):
        x = Symbol('x')
        return Label(text=str(integrate(1/x,x)))

MyApp().run()

And the buildozer.spec as default except: requirements = python3,kivy,mpmath,sympy

I tried the obvious work around:

# File:              p4a-recipes/mpmath/__init__.py
# buildozer.spec:    p4a.local_recipes = p4a-recipes

from pythonforandroid.recipe import PythonRecipe

class MpmathRecipe(PythonRecipe):
    url = 'https://github.com/fredrik-johansson/mpmath/archive/master.zip'
    depends = ['setuptools']

recipe = MpmathRecipe()

But this fails with ModuleNotFoundError: No module named 'setuptools' Which appears to be #2078

obfusk commented 4 years ago

I think I solved a similar problem by adding

call_hostpython_via_targetpython = False
install_in_hostpython = True
RobertFlatt commented 4 years ago

Thank you, that fixed the mpmath build issue. It now builds before sympy which was my diagnosis of the issue.

But........

I get back to the error message I had previously: #Please install the mpmath package with a version >= 0.19

It turns out sympy setup.py line 54 is import mpmath

Adding a print shows this fails with No module named 'mpmath'

Regardless of mpmath being installed before or after sympy , or even mpmath being installed on the executing machine. Which explains why my diagnosis was incorrect.

But leaves me completely confused at to how that import works and the sympy recipe ever worked, or how it passes regression tests.

obfusk commented 4 years ago

Have you tried modifying the sympy recipe to set call_hostpython_via_targetpython = False?

But leaves me completely confused at to how that import works and the sympy recipe ever worked, or how it passes regression tests.

It's included in BROKEN_RECIPES_PYTHON3, so I don't think it passes any tests.

RobertFlatt commented 4 years ago

HaHa, TeeHee, HoHo, gasp, Haaaa. This is funny.

It seems as some zen monk might say, the best recipe is no recipe at all.

The solution for me was to copy the sympy source to the project directory. And set requirements = python3,kivy,mpmath

I added boolean and unicode expressions to the test case and everything worked on Android the same as on the desktop. 

from kivy.app import App
from kivy.uix.label import Label
from sympy import Symbol, integrate, Integral,sqrt
from sympy.logic.boolalg import Or

class MyApp(App):
    def build(self):
        x = Symbol('x')
        y = Symbol('y')
        return Label(text=u"{}\n{}\n{}".format(integrate(1/x,x),
                                               Integral(sqrt(1/x),x),
                                               Or(x,y)))

MyApp().run()

All the synpy recipe does is patch some unicode symbols to ASCII, but Kivy ignores these unicode symbols and just prints the equivalent ASCII expression (as shown in the example above, and despite using a unicode string) - so the patch appears redundant.

A couple of things I don't understand (can anybody enlighten me? , I'm using p4a.branch=develop): 1) why I had to copy the source, it seems to me p4a can easily find sympy and since this is not listed in requirements I would expect p4a to get the source with pip. Perhaps this is because there exists a recipe I'm not using? 2) why I had to specify mpmath , sympy/__init__.py contains import mpmath inside a try, it seems p4a should find that.

I conclude from this the best thing to do is delete the synpy recipe (and then the pip package will be downloaded, though it might have to be specified in requirements).
EDIT: But perhaps there will still be an issue with mpmath in setup.py, in which case the recipe would have to patch that and set python_depends = ['mpmath']

HaHa

obfusk commented 4 years ago

All the synpy recipe does is patch some unicode symbols to ASCII, but Kivy ignores these unicode symbols and just prints the equivalent ASCII expression (as shown in the example above, and despite using a unicode string) - so the patch appears redundant.

I don't think you've used sympy in a way that it would have produced unicode symbols in your example.

Why I had to copy the source, it seems to me p4a can easily find sympy and since this is not listed in requirements I would expect p4a to get the source with pip. Perhaps this is because there exists a recipe I'm not using?

AFAIK p4a only gets dependencies via pip if there is no recipe. So that is indeed the problem. You could try forking p4a and deleting the sympy recipe to confirm this.

Why I had to specify mpmath , sympy/__init__.py contains import mpmath inside a try, it seems p4a should find that.

Dependency information does not come from import statements; it is provided by recipes or pypi/pip packages.

obfusk commented 4 years ago

Also: "unicode strings" only exist in Python 2, u"..." produces a "normal" string in Python 3.

obfusk commented 4 years ago

I don't think the current pretty printing patch makes much sense. It replaces e.g. ∧ with the text LOGICAL AND.

I think it makes more sense to completely disable unicode for pretty printing. And it looks like the unicode detection in sympy should already work correctly (since sys.stdout.encoding is None with p4a).

Unless I missed something, removing the sympy recipe seems like the best solution.

RobertFlatt commented 4 years ago

I don't think the current pretty printing patch makes much sense. It replaces e.g. ∧ with the text LOGICAL AND.

Agreed, and your example currently prints the ASCII '&' which IMHO is better than either of the above. I can come up with a test case that is functional but less elegant, but the behavior is the same as Kivy on Windows. So to try to finesse it on Android would be inconsistent.

You could try forking p4a and deleting the sympy recipe to confirm this.

Cloned p4a , set p4a.source_dir = clone_dir , and deleted clone's sympy recipe and sympy directory in app left over from previous test. requirements = python3,kivy,sympy,mpmath

working 1 location(s) to search for versions of mpmath:                                                   
           working: * https://pypi.org/simple/mpmath/                                                                 

working: 1 location(s) to search for versions of sympy:                                                    
           working: * https://pypi.org/simple/sympy/

Confirmed, this builds using sympy and mpmath using pip source, and runs the test case from my previous post.

I do wonder if this builds because mpmath is alphabetically sorted before sympy? But I've convinced myself I don't have to worry about that ;) I also uninstalled a local pip copy of mpmath but, as expected, this did not change anything.

Unless I missed something, removing the sympy recipe seems like the best solution.

I agree. [Guaranteed we missed something ;) but the chances of somebody finding whatever it is look slim.]

Sahil-pixel commented 4 years ago

is there any solution ...sympy for Android with Kivy ???

RobertFlatt commented 4 years ago

There are two different of work arounds in the posts above 1) Make a local copy of synpy and don't specify synpy in requirements https://github.com/kivy/python-for-android/issues/2303#issuecomment-689928162 2) Make a local copy of p4a, remove synpy, and specify synpy in requirements https://github.com/kivy/python-for-android/issues/2303#issuecomment-690811554

ALAWIII commented 2 years ago

the solution is pretty simple just find and copy the mpmath folder to {.buildozer} where your working directory: copy the mpmath folder to those two places:

.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/sympy/armeabi-v7a__ndk_target_21/sympy/

and to this folder

.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/sympy/arm64-v8a__ndk_target_21/sympy/