##// END OF EJS Templates
Use environment variable to identify conda / mamba (#14515)...
Use environment variable to identify conda / mamba (#14515) Conda and mamba both set an environment variable which refers to the base environment's executable path, use that in preference to less reliable methods, but fall back on the other approaches if unable to locate the executable this way. Additionally, change the search to look for the bare command name rather than the command within the top level of the active environment, I'm dubious this approach works with any current conda / mamba version which usually place their executable links in a `condabin` directory or elsewhere not at the same level as the Python executable. I believe this will also address https://github.com/ipython/ipython/issues/14350, which I'm also seeing in a Windows context where the regex fails to parse and causes a traceback.

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display.py
93 lines | 3.1 KiB | text/x-python | PythonLexer
"""Simple magics for display formats"""
#-----------------------------------------------------------------------------
# Copyright (c) 2012 The IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
# Our own packages
from IPython.display import display, Javascript, Latex, SVG, HTML, Markdown
from IPython.core.magic import (
Magics, magics_class, cell_magic
)
from IPython.core import magic_arguments
#-----------------------------------------------------------------------------
# Magic implementation classes
#-----------------------------------------------------------------------------
@magics_class
class DisplayMagics(Magics):
"""Magics for displaying various output types with literals
Defines javascript/latex/svg/html cell magics for writing
blocks in those languages, to be rendered in the frontend.
"""
@cell_magic
def js(self, line, cell):
"""Run the cell block of Javascript code
Alias of `%%javascript`
Starting with IPython 8.0 %%javascript is pending deprecation to be replaced
by a more flexible system
Please See https://github.com/ipython/ipython/issues/13376
"""
self.javascript(line, cell)
@cell_magic
def javascript(self, line, cell):
"""Run the cell block of Javascript code
Starting with IPython 8.0 %%javascript is pending deprecation to be replaced
by a more flexible system
Please See https://github.com/ipython/ipython/issues/13376
"""
display(Javascript(cell))
@cell_magic
def latex(self, line, cell):
"""Render the cell as a block of LaTeX
The subset of LaTeX which is supported depends on the implementation in
the client. In the Jupyter Notebook, this magic only renders the subset
of LaTeX defined by MathJax
[here](https://docs.mathjax.org/en/v2.5-latest/tex.html)."""
display(Latex(cell))
@cell_magic
def svg(self, line, cell):
"""Render the cell as an SVG literal"""
display(SVG(cell))
@magic_arguments.magic_arguments()
@magic_arguments.argument(
'--isolated', action='store_true', default=False,
help="""Annotate the cell as 'isolated'.
Isolated cells are rendered inside their own <iframe> tag"""
)
@cell_magic
def html(self, line, cell):
"""Render the cell as a block of HTML"""
args = magic_arguments.parse_argstring(self.html, line)
html = HTML(cell)
if args.isolated:
display(html, metadata={'text/html':{'isolated':True}})
else:
display(html)
@cell_magic
def markdown(self, line, cell):
"""Render the cell as Markdown text block"""
display(Markdown(cell))