Question

我想要做的是在Raspbian启动上执行python脚本。我这样做的方法是：

#!/bin/sh -e
# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi
/usr/bin/python /home/pi/Desktop/MyProj/sample/main.py > /home/pi/Desktop/projStartup.log 2>&1 &
exit 0

基本上，它的编写方式意味着我将它作为一个分叉的过程启动（最后是'＆'），并且每个日志都应放入 projStartup.log >文件。

当我打开终端并输入：

pi@raspberrypi:~ $ /etc/rc.local

一切正常，但是当我尝试重新启动Raspbian时，出现以下错误（错误堆栈顶部）：

File "/home/pi/Desktop/MyProj/sample/firebaseManager.py", line 1, in <module>
    from pyrebase import pyrebase
  File "/usr/local/lib/python2.7/dist-packages/pyrebase/__init__.py", line 1, in <module>
    from .pyrebase import initialize_app
  File "/usr/local/lib/python2.7/dist-packages/pyrebase/pyrebase.py", line 17, in <module>
    from oauth2client.service_account import ServiceAccountCredentials
  File "/usr/local/lib/python2.7/dist-packages/oauth2client/service_account.py", line 26, in <module>
    from oauth2client import crypt
  File "/usr/local/lib/python2.7/dist-packages/oauth2client/crypt.py", line 23, in <module>
    from oauth2client import _pure_python_crypt
  File "/usr/local/lib/python2.7/dist-packages/oauth2client/_pure_python_crypt.py", line 24, in <module>
    from pyasn1_modules.rfc2459 import Certificate
  File "/usr/local/lib/python2.7/dist-packages/pyasn1_modules/rfc2459.py", line 20, in <module>
    from pyasn1.type import opentype
ImportError: cannot import name opentype

如您所见， opentype 的导入存在问题。我的脚本正在使用的其他模块也有类似的问题，解决方案是使用以下命令在全局安装它们：

sudo pip install ...

因此，现在我想知道需要在全局级别上进行哪些更新才能避免此opentype问题。

Answer 1

由@thebjorn建议

解决方案：对我来说，解决方案是显式设置pi用户（登录时使用的用户）。

$  python -m smtpd -n -c DebuggingServer localhost:1025
---------- MESSAGE FOLLOWS ----------
Content-Type: multipart/alternative; boundary="===============2742770895617986609=="
MIME-Version: 1.0
Subject: Hello
To: a@example.com
From: b@example.com
X-Peer: 127.0.0.1

--===============2742770895617986609==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit

Hello World
--===============2742770895617986609==
Content-Type: text/html; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit

<p>Hello World</p>
--===============2742770895617986609==--
------------ END MESSAGE ------------

从rc.local启动python脚本时导入opentype的问题

1 个答案: