我使用Ubuntu 14.04 LTS
与水蟒蟒安装:如何在jupyter中定义自定义魔法?
的Python 3.5.1 ::阿纳康达2.4.1(64位)
我试图使用this recipe启用C++互动编译在我的IPython笔记本:
import IPython.core.magic as ipym
@ipym.magics_class
class CppMagics(ipym.Magics):
@ipym.cell_magic
def cpp(self, line, cell=None):
"""Compile, execute C++ code, and return the standard output."""
# Define the source and executable filenames.
source_filename = 'temp.cpp'
program_filename = 'temp.exe'
# Write the code contained in the cell to the C++ file.
with open(source_filename, 'w') as f:
f.write(cell)
# Compile the C++ code into an executable.
compile = self.shell.getoutput("g++ {0:s} -o {1:s}".format(
source_filename, program_filename))
# Execute the executable and return the output.
output = self.shell.getoutput(program_filename)
return output
def load_ipython_extension(ipython):
ipython.register_magics(CppMagics)
无论我火了我的笔记本用ipython notebok
或jupyter notebook
(我相信第一别名山高第二反正),当我执行单元搭配:
%load_ext cppmagic
我收到以下错误:
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-7b90c7a2b808> in <module>()
----> 1 get_ipython().magic('load_ext cppmagic')
/home/norah/anaconda3/lib/python3.5/site-packages/IPython/core/interactiveshell.py in magic(self, arg_s)
2334 magic_name, _, magic_arg_s = arg_s.partition(' ')
2335 magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)
-> 2336 return self.run_line_magic(magic_name, magic_arg_s)
2337
2338 #-------------------------------------------------------------------------
/home/norah/anaconda3/lib/python3.5/site-packages/IPython/core/interactiveshell.py in run_line_magic(self, magic_name, line)
2255 kwargs['local_ns'] = sys._getframe(stack_depth).f_locals
2256 with self.builtin_trap:
-> 2257 result = fn(*args,**kwargs)
2258 return result
2259
/home/norah/anaconda3/lib/python3.5/site-packages/IPython/core/magics/extension.py in load_ext(self, module_str)
/home/norah/anaconda3/lib/python3.5/site-packages/IPython/core/magic.py in <lambda>(f, *a, **k)
191 # but it's overkill for just that one bit of state.
192 def magic_deco(arg):
--> 193 call = lambda f, *a, **k: f(*a, **k)
194
195 if callable(arg):
/home/norah/anaconda3/lib/python3.5/site-packages/IPython/core/magics/extension.py in load_ext(self, module_str)
64 if not module_str:
65 raise UsageError('Missing module name.')
---> 66 res = self.shell.extension_manager.load_extension(module_str)
67
68 if res == 'already loaded':
/home/norah/anaconda3/lib/python3.5/site-packages/IPython/core/extensions.py in load_extension(self, module_str)
87 if module_str not in sys.modules:
88 with prepended_to_syspath(self.ipython_extension_dir):
---> 89 __import__(module_str)
90 mod = sys.modules[module_str]
91 if self._call_load_ipython_extension(mod):
ImportError: No module named 'cppmagic'
在配方中的代码似乎与the official docs同意(两者都使用IPython.core.magic.magics_class
)我已经把我的cppmagic.py
在以下目录
〜/ .ipython/profile_default /启动
在笔记本电脑启动时自动加载,但我无法感受到神奇。谁能帮忙?
谢谢非常。这工作!不幸的是配方不....我得到一个'['/ bin/sh:1:temp.exe:not found']错误,但这与配方代码本身有关。我选择这个答案,如果你能帮我解决我最后一个问题。 –
您可能想要添加'。/ temp.exe'来确保它正在本地目录中查找,我不确定。 – minrk