如何关联IPython回调（）

Question

在IPython终端中，我希望main()中的一个函数返回到IPython中，在这里我可以像往常一样打印、设置…，然后继续运行main():

IPython
    run main.py
    ...
    def callback( *args ):
        ...
        try:
            back_to_ipython()  # <-- how to do this ?
                In[]: print, set *args ...
                ...
        except KeyboardInterrupt:  # or IPython magic
            pass

        return  # from callback(), keep running main()

这必须在Python2中运行。

(callback的名称可以是任何东西，但我的用例是scipy.optimize->callback。也许是某个聪明的scipy人做的？）

# http://stackoverflow.com/questions/39946052/how-to-coroutine-ipython-a-callback

import sys
from IPython import __version__
from IPython import embed  # $site/IPython/terminal/embed.py
from IPython.terminal.ipapp import load_default_config

print "versions: IPython %s  python %s" % (
        __version__, sys.version.split()[0] )

def pdict( header, adict ):
    print header
    for k, v in sorted( adict.items() ):
        print "%s\t: %s" % (k, v)

config = load_default_config()
pdict( "load_default_config:", config )

aglobal = [3]

#...............................................................................
def callback( adict ):
    # pdict( "callback:", adict )
    t = adict["t"]
    x = 3
    embed( header="callback: t %d" % t )
        # interact: print t x ...
        # ^D / EOF
    return

def aloop( *args ):
    for t in range( 3 ):
        callback( locals() )

aloop( 1, 2, 3 )  # works in "run this.py"
# but typing "aloop()" in an IPython terminal ->
# embed.py:218: UserWarning: Failed to get module unknown module
#  global_ns.get('__name__', 'unknown module')

Answer 1

您可以插入断点，这将给出类似的结果：

import pdb; pdb.set_trace()

https://docs.python.org/3.6/library/pdb.html

此处可供选择(iPython中的embed()函数）：使用iPython进行逐步调试