mirror of
https://github.com/vale981/emacs-ipython-notebook
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db310073c4
EIN tries to build a cached of pdef's for all potential completion symbols. This is problematic because not all completion symbols have a pdef and can cause python to throw exceptions in entertaining and hard to catch ways. We take a liberal approach and ignore anything that throws an exception when we try to inspect it. Eldoc support should also be more robust because of these changes as well.
122 lines
3.6 KiB
Python
122 lines
3.6 KiB
Python
"""
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Python utilities to use it from ein.el
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Copyright (C) 2012- Takafumi Arakaki
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Author: Takafumi Arakaki <aka.tkf at gmail.com>
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ein.py is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ein.py is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with ein.py. If not, see <http://www.gnu.org/licenses/>.
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"""
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def export_nb(nb_json, format):
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import IPython.nbconvert as nbconvert
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import IPython.nbformat as nbformat
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nb = nbformat.reads(nb_json, nbformat.NO_CONVERT)
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output = nbconvert.export_by_name(format, nb)
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print(output[0])
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def _find_edit_target_012(*args, **kwds):
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from IPython.core.interactiveshell import InteractiveShell
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inst = InteractiveShell.instance()
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return inst._find_edit_target(*args, **kwds)
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def _find_edit_target_013(*args, **kwds):
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from IPython.core.interactiveshell import InteractiveShell
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inst = InteractiveShell.instance()
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return CodeMagics._find_edit_target(inst, *args, **kwds)
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def _find_edit_target_python(name):
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from inspect import getsourcefile, getsourcelines
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try:
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obj = eval(name)
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except NameError:
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return False
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else:
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sfile = getsourcefile(obj)
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sline = getsourcelines(obj)[-1]
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if sfile and sline:
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return(sfile, sline, False)
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else:
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return False
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try:
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from IPython.core.magics import CodeMagics
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_find_edit_target = _find_edit_target_013
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except ImportError:
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_find_edit_target = _find_edit_target_012
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def set_figure_size(*dim):
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try:
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from matplotlib.pyplot import rcParams
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rcParams['figure.figsize'] = dim
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except:
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raise RuntimeError("Matplotlib not installed in this instance of python!")
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def find_source(name):
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"""Given an object as string, `name`, print its place in source code."""
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# FIXME: use JSON display object instead of stdout
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ret = _find_edit_target_python(name) or _find_edit_target(name, {}, [])
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if ret:
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(filename, lineno, use_temp) = ret
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if not use_temp:
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print(filename)
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print(lineno)
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return
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raise RuntimeError("Source code for {0} cannot be found".format(name))
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def run_docstring_examples(obj, verbose=True):
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from IPython.core.interactiveshell import InteractiveShell
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import doctest
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inst = InteractiveShell.instance()
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globs = inst.user_ns
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return doctest.run_docstring_examples(obj, globs, verbose=verbose)
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def maybe_undefined_object(obj, locals=None):
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try:
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return eval(obj, None, locals)
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except Exception:
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return None
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def print_object_info_for(obj):
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import IPython.core.oinspect
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import json
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try:
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inspector = IPython.core.oinspect.Inspector()
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if obj:
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print(json.dumps(inspector.info(obj)))
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else:
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print(json.dumps(inspector.noinfo()))
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except AttributeError:
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print(json.dumps(inspector.noinfo()))
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except NameError:
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print(json.dumps(inspector.noinfo()))
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def eval_hy_string(obj):
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try:
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import hy
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except ImportError:
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print("Hy not supported in this kernel. Execute `pip install hy` if you want this support.")
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expr = hy.read_str(obj)
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ret = hy.eval(expr)
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return ret
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