翻译强力驱动I am trying to obtain the current NoteBook name when running the IPython notebook. I know I can see it at the top of the notebook. What I am after something like
currentNotebook = IPython.foo.bar.notebookname()I need to get the name in a variable.
As already mentioned you probably aren't really supposed to be able to do this, but I did find a way. It's a flaming hack though so don't rely on this at all:
import json import os import urllib2 import IPython from IPython.lib import kernel connection_file_path = kernel.get_connection_file() connection_file = os.path.basename(connection_file_path) kernel_id = connection_file.split('-', 1)[1].split('.')[0] # Updated answer with semi-solutions for both IPython 2.x and IPython < 2.x if IPython.version_info[0] < 2: ## Not sure if it's even possible to get the port for the ## notebook app; so just using the default... notebooks = json.load(urllib2.urlopen('http://127.0.0.1:8888/notebooks')) for nb in notebooks: if nb['kernel_id'] == kernel_id: print nb['name'] break else: sessions = json.load(urllib2.urlopen('http://127.0.0.1:8888/api/sessions')) for sess in sessions: if sess['kernel']['id'] == kernel_id: print sess['notebook']['name'] breakI updated my answer to include a solution that "works" in IPython 2.0 at least with a simple test. It probably isn't guaranteed to give the correct answer if there are multiple notebooks connected to the same kernel, etc.
I have the following which works with IPython 2.0. I observed that the name of the notebook is stored as the value of the attribute 'data-notebook-name' in the tag of the page. Thus the idea is first to ask Javascript to retrieve the attribute --javascripts can be invoked from a codecell thanks to the %%javascript magic. Then it is possible to access to the Javascript variable through a call to the Python Kernel, with a command which sets a Python variable. Since this last variable is known from the kernel, it can be accessed in other cells as well.
%%javascript var kernel = IPython.notebook.kernel; var body = document.body, attribs = body.attributes; var command = "theNotebook = " + "'"+attribs['data-notebook-name'].value+"'"; kernel.execute(command);From a Python code cell
print(theNotebook)Out[ ]: HowToGetTheNameOfTheNoteBook.ipynb
A defect in this solution is that when one changes the title (name) of a notebook, then this name seems to not be updated immediately (there is probably some kind of cache) and it is necessary to reload the notebook to get access to the new name.
[Edit] On reflection, a more efficient solution is to look for the input field for notebook's name instead of the tag. Looking into the source, it appears that this field has id "notebook_name". It is then possible to catch this value by a document.getElementById() and then follow the same approach as above. The code becomes, still using the javascript magic
%%javascript var kernel = IPython.notebook.kernel; var thename = window.document.getElementById("notebook_name").innerHTML; var command = "theNotebook = " + "'"+thename+"'"; kernel.execute(command);Then, from a ipython cell,
In [11]: print(theNotebook) Out [11]: HowToGetTheNameOfTheNoteBookSolBisContrary to the first solution, modifications of notebook's name are updated immediately and there is no need to refresh the notebook.
On Jupyter 3.0 the following works. Here I'm showing the entire path on the Jupyter server, not just the notebook name:
To store the NOTEBOOK_FULL_PATH on the current notebook front end:
%%javascript var nb = IPython.notebook; var kernel = IPython.notebook.kernel; var command = "NOTEBOOK_FULL_PATH = '" + nb.base_url + nb.notebook_path + "'"; kernel.execute(command);To then display it:
print("NOTEBOOK_FULL_PATH:\n", NOTEBOOK_FULL_PATH)Running the first Javascript cell produces no output. Running the second Python cell produces something like:
NOTEBOOK_FULL_PATH: /user/zeph/GetNote