Question

我试图安装pygobject，但其中一个依赖项是py3cairo。我已经安装它用于Python 3.4，但现在我想在Python 3.6中使用它。

我知道我可以使用sudo apt-get install python3-cairo安装它，但它已经安装了它：

$ sudo apt-get install python3-cairo
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-cairo is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

然而，

Python 3.6.0 (default, Feb 20 2017, 17:34:58) 
[GCC 4.9.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import gi
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'gi'
>>> import cairo
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cairo'
>>> quit()
brandon@bjd2385:~/Downloads$ python3.4
Python 3.4.2 (default, Oct  8 2014, 10:45:20) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import gi
>>> import cairo

尝试从源代码构建/安装它是丑陋的，因为我得到了所有种的问题：

$ PYTHON="python3.6" ./waf configure
  ./options()
Setting top to                           : /home/brandon/Downloads/pycairo-1.10.0 
Setting out to                           : /home/brandon/Downloads/pycairo-1.10.0/build_directory 
  ./configure()
Checking for 'gcc' (c compiler)          : ok 
Checking for program python              : python3.6 
python executable 'python3.6' different from sys.executable '/usr/local/bin/python3.6'
Checking for python version              : (3, 6, 0, 'final', 0) 
Traceback (most recent call last):
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Scripting.py", line 93, in waf_entry_point
    run_commands()
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Scripting.py", line 145, in run_commands
    run_command(cmd_name)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Scripting.py", line 138, in run_command
    ctx.execute()
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Configure.py", line 124, in execute
    super(ConfigurationContext,self).execute()
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Context.py", line 87, in execute
    self.recurse([os.path.dirname(g_module.root_path)])
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Context.py", line 127, in recurse
    user_function(self)
  File "/home/brandon/Downloads/pycairo-1.10.0/wscript", line 29, in configure
    ctx.check_python_headers()
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Configure.py", line 217, in fun
    return f(*k,**kw)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Tools/python.py", line 146, in check_python_headers
    result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in LIBDIR'%name)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Configure.py", line 217, in fun
    return f(*k,**kw)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Tools/c_config.py", line 357, in check
    ret=self.run_c_code(*k,**kw)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Configure.py", line 217, in fun
    return f(*k,**kw)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Tools/c_config.py", line 435, in run_c_code
    bld.compile()
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Build.py", line 190, in compile
    self.store()
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Utils.py", line 300, in f
    ret=fun(*k,**kw)
  File "/home/brandon/Downloads/pycairo-1.10.0/.waf3-1.6.4-e3c1e08604b18a10567cfcd2d02eb6e6/waflib/Build.py", line 164, in store
    cPickle.dump(data,f)
AttributeError: Can't pickle local object 'Context.__init__.<locals>.node_class'
Checking for library python3.6 in LIBDIR :

如何安装py3cairo并克服这些问题？

Answer 1

我正在尝试做同样的事情，在Slackware 14.2上用python3.6编译pycairo。我得到了和你一样的错误，并且所提到的各种waf补丁都没有奏效。

我确实在这个追求中取得了一个进展。 slackware-current发行版有一个似乎运行的waf脚本。它位于http://ftp.slackware.com/pub/slackware/slackware-current/source/l/pycairo/

此脚本中缺少您提到的上述错误，但在尝试使用cairomodule.c中的错误进行编译时会弹出另一个错误。

slackware-current构建几乎可以实现，但仍然会因编译错误而失败。也许对libs有更多经验的人可以修复它。

为Python 3.6安装py3cairo

1 个答案: