xonsh | :shell: Python-powered, cross-platform, Unix-gazing shell | Command Line Interface library
kandi X-RAY | xonsh Summary
kandi X-RAY | xonsh Summary
:shell: Python-powered, cross-platform, Unix-gazing shell.
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Top functions reviewed by kandi - BETA
- Defines Xontribs .
- Main entry point for parsing .
- Calculates the Yacc for parsing .
- Tokenize a line .
- The CLUT .
- Detailed information about an object .
- Loads key bindings .
- Parses the rules for the grammar .
- Creates a lexer
- Retrieve data for a local shell .
xonsh Key Features
xonsh Examples and Code Snippets
Lines of Code : 26License : Permissive (MIT)
Copy#!/usr/bin/env xonsh
# PYTHON_ARGCOMPLETE_OK
import argparse
import argcomplete # Tab completion support with xontrib-argcomplete
from argcomplete.completers import ChoicesCompleter
argp = argparse.ArgumentParser(d * - Shortcut
- Description
* - Ctrl-Backspace (or Ctrl-H)
- Delete a single word (like Alt-Backspace)
* - Ctrl-X + Ctrl-E
- Open the current buffer in your default text editor.
* - Ctrl-D
- Exit xonsh and return to original terminal. If not c #!/usr/bin/env python
"""
Example of the fancy ZSH prompt that @anki-code was using.
The theme is coming from the xonsh plugin from the xxh project:
https://github.com/xxh/xxh-plugin-xonsh-theme-bar
See:
- https://github.com/xonsh/xonsh/issues/3356 fcue=list(map(lambda x: os.path.join(root,x), (f for f in files if f.lower().endswith('.cue'))))
ps -p $$
conda init bash
import ctypes, ctypes.wintypes, contextlib
k32 = ctypes.windll.kernel32
INVALID_HANDLE_VALUE = ctypes.wintypes.HANDLE(-1).value
ERROR_NO_MORE_FILES = 18
ERROR_INSUFFICIENT_BUFFER = 122
TH32CS_SNAPPROCESS = 2
PROCESS_QUERY_LIMITED_INFORMAsubprocess.run(". $CONDA_PREFIX/etc/profile.d/conda.sh && conda activate test", shell=True)
conda create -n --name NAMEOFYOURENV python=3.8.2(OR OTHER VERSION YOU PREFER)
conda env list
TypeError: required field "posonlyargs" missing from arguments
Community Discussions
Trending Discussions on xonsh
QUESTION
I triyed to execute pipenv shell in a new environtment and I got the following error:
...ANSWER
Answered 2022-Feb-12 at 13:54By github issue, the solution that works was the following:
QUESTION
I'm new to the Mac environment and installed the Anaconda GUI by accident. I wished to remove it completely and install Miniconda instead. I think I was successful, except the only remnant I can find of Anaconda is in my .bash_profile. It looks something like:
ANSWER
Answered 2022-Feb-21 at 23:54The bash profile is a set up script which runs when you open the terminal. In the script you provided, the conda lines sets up the PATH environment variable, where in those lines the base conda environment is added to the start of the path. That way if the os searches for any binary files (e.g. python) it first searches conda and the currently activated environment. Since you deleted all anaconda files and its associated binaries, this bash_profile script should now do nothing.
As Gordon Davisson mentioned, the bash_profile does not exist by default on your mac. If bash_profile doesn't currently exist, then the conda installer will create the bash_profile and add the conda set up lines. Otherwise it simply appends the set up lines to the script. In general, it's safest to only remove the conda specific lines in the bash_profile as other programs may too rely on environment variables set in the bash_profile. However if the bash_profile only contains conda related lines, then you can safely delete the entire file.
QUESTION
I'm running the following command in continuous integration (not locally on a machine):
...ANSWER
Answered 2022-Jan-12 at 21:14The conda init command is for adding code to the shell resource file, providing functionality (like conda activate) for interactive shell sessions. Since CI sessions usually transient, one instead should just source the etc/profile.d/conda.sh directly to add conda activate support.
Something like:
QUESTION
For some reason the jupyter notebooks on my VM are in the wrong environment (ie stuck in (base)). Furthermore, I can change the environment in the terminal but not in the notebook. Here is what happens when I attempt !conda activate desired_env in the notebook:
ANSWER
Answered 2021-Nov-11 at 17:44I'm the PM that released AzureML Notebooks, you can't activate a Conda env from a cell, you have to create a new kernel will the Conda Env. Here are the instructions: https://docs.microsoft.com/en-us/azure/machine-learning/how-to-access-terminal#add-new-kernels
QUESTION
I have a function in Xonsh that I'm trying to use like a command (ie: without parens). The function should optionally take arguments, however whenever I call the function without arguments, I just get the function address. How do you call a function with optional parameters?
Here's the example:
...ANSWER
Answered 2021-Sep-20 at 13:21I'm not certain why you're getting the function repr when you aren't passing in an argument, but a tweaked version of your function works:
QUESTION
My regular expression does not explicitly include a dash in a character range, but my code fails when the input file name is like this:
...ANSWER
Answered 2021-Aug-15 at 17:22Rather than using glob with funny file patterns passed through root, you are better off sorting out just the names, and then prepend the root. One possible one-liner:
QUESTION
I'm learning xonsh. I tried the following simple script, but it fails at zipinfo -1 $mzip_str, specifically at expanding mzip_str.
ANSWER
Answered 2021-Aug-13 at 00:27From the official tutorial
The
@()operator form works in subprocess mode, and will evaluate arbitrary Python code. The result is appended to the subprocess command list. If the result is a string or bytes, it is appended to the argument list. If the result is a list or other non-string sequence, the contents are converted to strings and appended to the argument list in order. If the result in the first position is a function, it is treated as an alias (see the section on Aliases below), even if it was not explicitly added to thealiasesmapping. Otherwise, the result is automatically converted to a string.
So the relevant line should look like (Untested as I don't have this xonsh installed):
QUESTION
I have been given a guide to install tensorflow, keras and sciann, but my python fails and cannot google why. I have an old 2010 MacBook Pro (masOS 10.12.6) and I use Python 3.8.5 via Spyder. This is what do:
First, I create an environment ”ml” with python:
...ANSWER
Answered 2021-May-10 at 23:31In your terminal, enter the following command:
QUESTION
Browser: Google Chrome latest
I followed this Conda + Google Colab article to setup conda in colab which was working perfectly a few days ago.
After that, I tried to set up FairMOT By running these commands
...ANSWER
Answered 2021-Apr-09 at 00:04I created a quick-fix that works. I do not recomend this as a long-term solution.
Change the contents of the file that raises the InvalidVersionSpec error. In my case this is the file /usr/local/lib/python3.7/site-packages/conda/models/version.py. You can get the location of this file for your case using !conda create your_env --verbose. (Note that one file generates the exception, but another one raises InvalidVersionSpec, go for the latter).
Following are the lines of code of our interest:
QUESTION
I get weird behaviour when using stty in the xonsh shell on Linux/macOS. (Commands do not seem to obey the defined column under xonsh, but they do so under bash.)
To get a better understanding of the situation I wrote a little C program which calls ioctl with TIOCGWINSZ for the 3 standard streams stdin, stdout, stderr and prints the widths out.
Before doing any stty command I get the following results for the ioctl width:
stdin=80, stdout=80, stderr=80
stdin=80, stdout=80, stderr=80
So far so good. This means my terminal is 80 cols wide.
Now I issue in each shell stty cols 40, run my little program and get these results:
stdin=40, stdout=40, stderr=40
stdin=40, stdout=80, stderr=80
How strange, that under xonsh for the file descriptors stdout and stderr the width of 80 is reported(!) while under bash everything as expected all descripters have a width of 40.
This sheds some light on the fact that various commands (e.g. wget) do not obey stty col calls under xonsh.
But why is this the case? And how can I issue a stty-style command that sets under xonsh the width of all standard streams to 40?
ANSWER
Answered 2021-Feb-20 at 02:33By default, stty reads/sets the terminal settings on stdin. You can set some other terminal with the -F or --file argument
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install xonsh
You can use xonsh like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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