Python程序无法导入点解析器
作者:互联网
我试图从命令行运行一个巨大的演化模拟python软件.该软件依赖于以下python包:
1-networkX
2- pyparsing
3 numpy的
4- pydot
5 matplotlib
6- graphviz的
我得到的错误是这样的:
Couldn't import dot_parser, loading of dot files will not be possible.
initializing with file= initAdapt.py in model dir= ./Test_adaptation//
Traceback (most recent call last):
File "run_evolution.py", line 230, in <module>
gr.write_dot( os.path.join(test_output_dir, 'test_net.dot') )
File "/Library/Python/2.7/site-packages/pydot.py", line 1602, in <lambda>
lambda path, f=frmt, prog=self.prog : self.write(path, format=f, prog=prog))
File "/Library/Python/2.7/site-packages/pydot.py", line 1696, in write
dot_fd.write(self.create(prog, format))
File "/Library/Python/2.7/site-packages/pydot.py", line 1740, in create
self.write(tmp_name)
File "/Library/Python/2.7/site-packages/pydot.py", line 1694, in write
dot_fd.write(self.to_string())
File "/Library/Python/2.7/site-packages/pydot.py", line 1452, in to_string
graph.append( node.to_string()+'\n' )
File "/Library/Python/2.7/site-packages/pydot.py", line 722, in to_string
node_attr.append( attr + '=' + quote_if_necessary(value) )
TypeError: cannot concatenate 'str' and 'int' objects
我已经尝试过针对堆栈溢出的类似question建议的解决方案.我仍然得到同样的错误.这是我正在使用的包版本和我的python版本.
>我正在使用python 2.7.6
>输入-a python产生结果的命令:“/usr/bin/python”.
1-pyparsing(1.5.7)
2-pydot(1.0.2)
3-matplotlib(1.3.1)
4-graphviz(0.4.2)
5-networkx(0.37)
6-numpy(1.8.0rc1)
有任何想法吗?看到类似问题的解决方案对我不起作用,我认为问题可能在我的案例中更为根本.也许我安装python的方式有问题.
解决方法:
您没有使用最新版本的pydot的任何特殊原因?
1.0.2的这个版本看起来像是修复了这个问题:
https://code.google.com/p/pydot/source/diff?spec=svn10&r=10&format=side&path=/trunk/pydot.py
见第722行.
标签:python,graphviz,numpy,pydot 来源: https://codeday.me/bug/20190623/1275518.html