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Valentyn's questions

Martin Hope
Valentyn
Asked: 2018-09-08 08:49:38 +0800 CST
  • 7

我正在尝试在我的 Ubuntu 18.04 机器上安装 wxPython 4。

sudo pip install wxpython

我首先收到此警告

    The directory '/home/user/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/user/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

并最终出错

Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-SyaTU1/wxpython/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-bzIjlK/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-install-SyaTU1/wxpython/

我对 wxPython3 有类似的问题，解决方案是使用 get 安装它

sudo apt-get install python-wxgtk-3.0

我还能够为 Python 3 安装 wxPython 4，但不能为 Python 2.7 安装（说明）

另外，我很困惑为什么安装 wxpython 需要这么多 CPU

sudo pip install wxpython

看到这张图片

command-line python wxpython
Martin Hope
Valentyn
Asked: 2018-07-30 13:24:59 +0800 CST
  • 0

我有 3 台安装了 Ubuntu 的 Dell Latitude 计算机。安装是从同一个源代码棒完成的，相隔几天完成，我遵循了家庭开发的协议（要安装的东西列表和在终端中运行的命令）。

尽管如此，我遵循了相同的协议，但我从这些机器上得到了不同的行为。最困扰我的问题之一是我按照主要来源的配方安装的 X11VNC 服务器或在此处重复安装，大约 24 小时后失败。发生这种情况时，其中一个核心完全被 x11vnc 服务器消耗。

我可以通过 ssh 访问计算机，这里有一些信息。

我不知道这些计算机的安装和配置有什么区别，以及为什么 x11vnc 服务器在一段时间后会失败。如果您有任何后续问题，我将不胜感激。我将使用我能找到的所有新信息更新问题。

操作系统：

username:~$  lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04 LTS
Release:    18.04
Codename:   bionic

X11vnc 版本

29/07/2018 17:15:54 x11vnc version: 0.9.13 lastmod: 2011-08-10  pid: 3283
29/07/2018 17:15:54 XOpenDisplay("") failed.
29/07/2018 17:15:54 Trying again with XAUTHLOCALHOSTNAME=localhost ...
29/07/2018 17:15:54 
29/07/2018 17:15:54 *** XOpenDisplay failed. No -display or DISPLAY.
29/07/2018 17:15:54 *** Trying ":0" in 4 seconds.  Press Ctrl-C to abort.
29/07/2018 17:15:54 *** 1 2 3 4 
29/07/2018 17:15:58 *** XOpenDisplay of ":0" successful.
29/07/2018 17:15:58 
29/07/2018 17:15:58 Using X display :0
29/07/2018 17:15:58 rootwin: 0x191 reswin: 0x3400001 dpy: 0xc6189f90

之前： sudo systemctl restart x11vnc

x11vnc.service - Start x11vnc at startup.
   Loaded: loaded (/lib/systemd/system/x11vnc.service; enabled; vendor preset: e
   Active: active (running) since Fri 2018-07-27 17:52:36 EDT; 1 day 22h ago
 Main PID: 1604 (x11vnc)
    Tasks: 2 (limit: 4915)
   CGroup: /system.slice/x11vnc.service
           ├─1604 /usr/bin/x11vnc -loop -forever -bg -rfbport 5900 -xkb -noxreco
           └─1606 /usr/bin/x11vnc -loop -forever -bg -rfbport 5900 -xkb -noxreco

Jul 28 10:10:46 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:10:46 client_count: 1
Jul 28 10:10:46 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:10:46 Client 137.187.82
Jul 28 10:10:46 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:10:46 Statistics       
Jul 28 10:10:46 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:10:46  TOTALS          
Jul 28 10:10:46 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:10:46 Statistics       
Jul 28 10:10:46 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:10:46  TOTALS          
Jul 28 10:15:47 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:15:47 idle keyboard:   
Jul 28 10:37:22 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:37:22 Got connection fr
Jul 28 10:37:22 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:37:22   other clients:
Jul 28 10:37:22 icarus-ii-50 x11vnc[1604]: 28/07/2018 10:37:22      128.231.4.12
~
~

之后： sudo systemctl restart x11vnc

    x11vnc.service - Start x11vnc at startup.
   Loaded: loaded (/lib/systemd/system/x11vnc.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2018-07-29 16:37:40 EDT; 28min ago
 Main PID: 30404 (x11vnc)
    Tasks: 2 (limit: 4915)
   CGroup: /system.slice/x11vnc.service
           ├─30404 /usr/bin/x11vnc -loop -forever -bg -rfbport 5900 -xkb -noxrecord -noxfixe
           └─30405 /usr/bin/x11vnc -loop -forever -bg -rfbport 5900 -xkb -noxrecord -noxfixe

Jul 29 17:03:35 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:35 Enabling full-color cursor u
Jul 29 17:03:35 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:35 Enabling NewFBSize protocol 
Jul 29 17:03:35 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:35 Switching from ZRLE to hexti
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 rfbProcessClientNormalMessag
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 rfbProcessClientNormalMessag
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 rfbProcessClientNormalMessag
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 rfbProcessClientNormalMessag
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 Enabling full-color cursor u
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 Enabling NewFBSize protocol 
Jul 29 17:03:36 icarus-ii-50 x11vnc[30404]: 29/07/2018 17:03:36 Switching from hextile to ZR
lines 1-19/19 (END)

这是VNC服务器100% CPU消耗的记录

top - 18:53:15 up 2 days,  1:01,  2 users,  load average: 1.39, 1.45, 1.41
Tasks: 261 total,   2 running, 192 sleeping,   0 stopped,   1 zombie
%Cpu(s):  3.0 us, 10.3 sy,  0.0 ni, 86.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem :  8031704 total,  2470912 free,  4375192 used,  1185600 buff/cache
KiB Swap:  2097148 total,  2097148 free,        0 used.  3068456 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                 
30405 root      20   0  154924  34324  22212 R 100.0  0.4  48:41.74 x11vnc
xorg vnc 18.04