解决Gooey在打包成exe文件后打印中文报UnicodeDec

问题

在使用Gooey这个工具生成GUI的时候，没有打包前测试是好的，但是当打包成exe文件后，双击exe运行填入所需选项执行报UnicodeDecodeError: 'utf-8' codec can't decode的错误。

PS C:\Users\faces\Desktop\gooey demo\dist> .\auto.exe
Exception in thread Thread-1:
Traceback (most recent call last):
  File "threading.py", line 926, in _bootstrap_inner
  File "threading.py", line 870, in run
  File "site-packages\gooey\gui\processor.py", line 71, in _forward_stdout
  File "site-packages\gooey\gui\processor.py", line 84, in _extract_progress
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb5 in position 13: invalid start byte

通过查找github中提交的issue发现是打包后环境的encoding与打包时的encoding不一致导致的问题。

解决方案

在Gooey装饰器中加入关键字参数encoding='cp936'

from gooey import Gooey, GooeyParser
@Gooey(encoding='cp936')
def main():
    parser = GooeyParser(description="Export music lite") 
    parser.add_argument('exe文件', widget="FileChooser")
    parser.add_argument('flac文件夹', widget="DirChooser")
    parser.add_argument('MP3导出文件夹', widget="DirChooser")
    args = parser.parse_args()
    print(args)
if __name__ == "__main__":
    main()

问题

接下来我想更改Gooey生成的GUI页面为中文，那么代码改为

from gooey import Gooey, GooeyParser
@Gooey(encoding='cp936', language='chinese')
def main():
    parser = GooeyParser(description="Export music lite") 
    ...

这时候执行会报如下错误

PS C:\Users\faces\Desktop\gooey demo\dist> .\auto.exe
Traceback (most recent call last):
  File "auto.py", line 17, in <module>
  File "site-packages\gooey-1.0.3-py3.7.egg\gooey\python_bindings\gooey_decorator.py", line 87, in inner2
  File "auto.py", line 12, in main
  File "site-packages\gooey-1.0.3-py3.7.egg\gooey\python_bindings\gooey_parser.py", line 114, in parse_args
  File "site-packages\gooey-1.0.3-py3.7.egg\gooey\python_bindings\gooey_decorator.py", line 82, in run_gooey
  File "site-packages\gooey-1.0.3-py3.7.egg\gooey\gui\application.py", line 21, in run
  File "site-packages\gooey-1.0.3-py3.7.egg\gooey\gui\application.py", line 28, in build_app
  File "site-packages\gooey-1.0.3-py3.7.egg\gooey\gui\lang\i18n.py", line 24, in load
  File "json\__init__.py", line 293, in load
UnicodeDecodeError: 'gbk' codec can't decode byte 0xa7 in position 20: illegal multibyte sequence

解决方案

从报错信息中可以看到是因为load代码的时候使用encoding='cp936'去加载文件导致的错误，那么简单粗暴的方法是编辑site-packages\gooey-1.0.3-py3.7.egg\gooey\gui\lang\i18n.py这个文件

找到

    with io.open(os.path.join(language_dir, json_file), 'r', encoding=encoding) as f:
      _DICTIONARY = json.load(f)

修改为

    with io.open(os.path.join(language_dir, json_file), 'r', encoding='utf-8') as f:
      _DICTIONARY = json.load(f)