python - pycharm 的 pycallgraph 不起作用

Question

我正在使用 mac os x 并尝试设置 pycallgraph。
我用 pip 安装了 pycallgraph，用 homebrew 安装了 graphviz。
一切都在 shell 中工作。但不是来自pycharm。

from pycallgraph import PyCallGraph
from pycallgraph import Config
from pycallgraph import GlobbingFilter
from pycallgraph.output import GraphvizOutput


config = Config()
config.trace_filter = GlobbingFilter(exclude=[
     'pycallgraph.*',
])

graphviz = GraphvizOutput(output_file='filter_exclude.png')

with PyCallGraph(output=graphviz, config=config):
    def my_fun(): 
        print "HELLO"
    my_fun()

---

/Users/user/Projects/py27/bin/python /Users/user/Projects/py27_django/test2.py
Traceback (most recent call last):
  File "/Users/user/Projects/py27_django/test2.py", line 15, in <module>
    with PyCallGraph(output=graphviz, config=config):
  File "/Users/user/Projects/py27/lib/python2.7/site-packages/pycallgraph/pycallgraph.py", line 32, in __init__
    self.reset()
  File "/Users/user/Projects/py27/lib/python2.7/site-packages/pycallgraph/pycallgraph.py", line 53, in reset
    self.prepare_output(output)
  File "/Users/user/Projects/py27/lib/python2.7/site-packages/pycallgraph/pycallgraph.py", line 97, in prepare_output
    output.sanity_check()
  File "/Users/user/Projects/py27/lib/python2.7/site-packages/pycallgraph/output/graphviz.py", line 63, in sanity_check
    self.ensure_binary(self.tool)
  File "/Users/user/Projects/py27/lib/python2.7/site-packages/pycallgraph/output/output.py", line 96, in ensure_binary
    'The command "{}" is required to be in your path.'.format(cmd))
pycallgraph.exceptions.PyCallGraphException: The command "dot" is required to be in your path.

Process finished with exit code 1

---

这里:
/Users/user/Projects/py27/ -> virtualenv 目录
/Users/user/Projects/py27_django/ -> 项目目录

---

它想从我这里得到什么？

Answer 1

在 MacOS 中安装 graphviz 使用:

brew 安装 graphviz

或在 Ubuntu 中使用:

sudo apt-get install graphviz

然后您可以使用以下方法测试dot:

点-v

您还可以从 here 下载 pkg