无法在Android手机上部署应用reportlab问题

问题描述

我尝试在手机上部署的应用程序在台式PC上运行良好。我使用以下命令将其部署在手机上：

buildozer android debug deploy run

当我尝试在手机上运行应用程序时，它崩溃了。使用：

adb logcat | grep python

我遇到以下错误：

ModuleNotFoundError：没有名为“ reportlab”的模块

我通过编辑buildozer.spec文件来“解决”：

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

但是，当我尝试再次部署应用程序时，我得到了：

[INFO]:    Downloading reportlab
[INFO]:    -> running mkdir -p /home/pawel/PycharmPr...(and 82 more)
[INFO]:    -> directory context /home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/build-armeabi-v7a/packages/reportlab
[INFO]:    -> running basename https://bitbucket.org/...(and 40 more)
[INFO]:    -> running rm c088826211ca.tar.gz                                   
[INFO]:    -> running rm -f .mark-c088826211ca.tar.gz
[INFO]:    Downloading reportlab from https://bitbucket.org/rptlab/reportlab/get/c088826211ca.tar.gz
Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py",line 193,in _run_module_as_main
    "__main__",mod_spec)
  File "/usr/lib/python3.6/runpy.py",line 85,in _run_code
    exec(code,run_globals)
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/toolchain.py",line 1260,in <module>
    main()
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/entrypoints.py",line 18,in main
    ToolchainCL()
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/toolchain.py",line 709,in __init__
    getattr(self,command)(args)
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/toolchain.py",line 154,in wrapper_func
    build_dist_from_args(ctx,dist,args)
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/toolchain.py",line 216,in build_dist_from_args
    args,"ignore_setup_py",False
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/build.py",line 555,in build_recipes
    recipe.download_if_necessary()
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/recipe.py",line 347,in download_if_necessary
    self.download()
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/recipe.py",line 393,in download
    self.download_file(self.versioned_url,filename)
  File "/home/pawel/PycharmProjects/TwoScreens/.buildozer/android/platform/python-for-android/pythonforandroid/recipe.py",line 208,in download_file
    urlretrieve(url,target,report_hook)
  File "/usr/lib/python3.6/urllib/request.py",line 1826,in retrieve
    block = fp.read(bs)
  File "/usr/lib/python3.6/tempfile.py",line 624,in func_wrapper
    return func(*args,**kwargs)
ValueError: read of closed file

我的理解是buidozer正在尝试下载reportlab，但失败了。我正在考虑手动下载reportlab并将其放置在适当的文件夹中。无论如何，我不知道该怎么做。我也不确定是否能解决我的问题。任何帮助/提示将不胜感激。

解决方法

如果您仍然遇到此问题，那么我也有同样的问题，不幸的是，我仍然没有找到更好的方法来这样做，所以最后，我只是这样做了：

1. 转到安装reportlab的位置。就我而言，这是：~/home/samdev/repo/venv/myproject/lib/python3.7/site-packages。
2. 在其中将文件夹reportlab和reportlab.libs复制到您的 root 项目文件夹中，然后
3. 将reportlab作为dep移至buildozer.spec requirements中。

现在它应该没问题了