ipython笔记本中的自定义魔术 - 代码未执行

Question

我对Ipython Magics是相对较新的，并且想运行一些代码并同时通过魔术命令将其添加到列表中。魔法定义如下

#iPython notebook magic
from IPython.core.magic import  (
    Magics, magics_class, cell_magic, line_magic
)
@magics_class
class ReportMagic(Magics):
    def __init__(self, shell,  data):
        super(ReportMagic,self).__init__(shell)
        self._code_store = []
        self._markdown_store = []
        self._conf_code_store=[]
        self._conf_markdown_store=[]
        self.data = data
        # inject our store in user availlable namespace under __mystore
        # name
        shell.user_ns['__mycodestore'] = self._code_store
        shell.user_ns['__mymarkdownstore'] = self._markdown_store
    @cell_magic
    def add_code_to_report(self, line, cell):
        """store the cell in the store"""
        self._code_store.append(cell)
    @cell_magic
    def add_markdown_to_report(self, line, cell):
        """store the cell in the store"""
        self._markdown_store.append(cell)
    @cell_magic
    def add_conf_code_to_report(self, line, cell):
        """store the cell in the store"""
        self._conf_code_store.append(cell)
    @cell_magic
    def add_conf_markdown_to_report(self, line, cell):
        """store the cell in the store"""
        self._conf_markdown_store.append(cell)

    @line_magic
    def show_report(self, line):
        """show all recorded statements"""
        return self._conf_markdown_store,self._conf_code_store ,self._markdown_store,self._code_store
# This class must then be registered with a manually created instance,
# since its constructor has different arguments from the default:
ip = get_ipython()
magics = ReportMagic(ip, 0)
ip.register_magics(magics)

我称魔法如下

%%add_conf_code_to_report
import pandas as pd
import numpy as np
import os
import collections

将导入代码复制到_CONF_CODE_STORE，但我无法从导入的库中调用功能。我希望该代码应添加到_conf_code_store中，同时应在笔记本中提供导入的Libaries的功能。

Answer 1

我已经能够围绕它进行工作。要通过魔术函数执行代码，必须调用ipython对象的run_cell实例。可以有更好的方法来做到这一点，但是现在代码可以工作。

@cell_magic
@needs_local_scope
def add_conf_code_to_report(self, line, cell):
    """store the cell in the store"""
    self._conf_code_store.append(cell)
    print type(cell)
    exec 'from IPython.core.display import HTML'
    for each in cell.split('n'):
        print each
        exec repr(each.strip())
    ip=get_ipython()
    ip.run_cell(cell)