解决了Mac M1上，fava的使用问题

1、fava在新电脑（M1）上不能用（一个python记账软件），一直没有fix，今天有时间，fix了一下。

2、最终还是跟根据 https://docs.google.com/document/d/1FqyrTPwiHVLyncWTf3v5TcooCu9z5JRX8Nm41lVZi0U/edit 中的提示，sudo -H python3 -m pip install beancount 安装成功。

1. So the -H flag makes sudo assume root's home directory as HOME instead of the current user's home directory. 
2. python -m: 将模块当做脚本来运行
3.

3、使用pip3 uninstall beancount, pip3 install beancount, pip3 uninstall fava, pip3 install fava 均可以安装成功，但是运行会报错：

Traceback (most recent call last):
  File "/opt/homebrew/bin/fava", line 5, in <module>
    from fava.cli import main
  File "/opt/homebrew/lib/python3.10/site-packages/fava/cli.py", line 13, in <module>
    from fava.application import app
  File "/opt/homebrew/lib/python3.10/site-packages/fava/application.py", line 43, in <module>
    from fava import template_filters
  File "/opt/homebrew/lib/python3.10/site-packages/fava/template_filters.py", line 25, in <module>
    from fava.context import g
  File "/opt/homebrew/lib/python3.10/site-packages/fava/context.py", line 6, in <module>
    from fava.core import FavaLedger
  File "/opt/homebrew/lib/python3.10/site-packages/fava/core/__init__.py", line 41, in <module>
    from beancount.loader import _load  # type: ignore
  File "/opt/homebrew/lib/python3.10/site-packages/beancount/loader.py", line 26, in <module>
    from beancount.parser import parser
  File "/opt/homebrew/lib/python3.10/site-packages/beancount/parser/parser.py", line 119, in <module>
    from beancount.parser import _parser
ImportError: dlopen(/opt/homebrew/lib/python3.10/site-packages/beancount/parser/_parser.cpython-310-darwin.so, 0x0002): tried: '/opt/homebrew/lib/python3.10/site-packages/beancount/parser/_parser.cpython-310-darwin.so' (mach-o file, but is an incompatible architecture (have (x86_64), need (arm64e)))

beancound只支持python3，不支持python。

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