cmd2 | quickly build feature-rich and user-friendly interactive | Command Line Interface library

by python-cmd2 Python Version: 2.4.2 License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | cmd2 Summary

cmd2 is a Python library typically used in Utilities, Command Line Interface applications. cmd2 has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install cmd2' or download it from GitHub, PyPI.

[Documentation Status] . cmd2 is a tool for building interactive command line applications in Python. Its goal is to make it quick and easy for developers to build feature-rich and user-friendly interactive command line applications. It provides a simple API which is an extension of Python’s built-in [cmd] module. cmd2 provides a wealth of features on top of cmd to make your life easier and eliminates much of the boilerplate code which would be necessary when using cmd. Click on image below to watch a short video demonstrating the capabilities of cmd2:

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Quality

Security

License

Reuse

Support

cmd2 has a highly active ecosystem.

It has 514 star(s) with 103 fork(s). There are 21 watchers for this library.

It had no major release in the last 12 months.

There are 12 open issues and 504 have been closed. On average issues are closed in 140 days. There are no pull requests.

It has a negative sentiment in the developer community.

The latest version of cmd2 is 2.4.2

Quality

cmd2 has 0 bugs and 0 code smells.

Security

cmd2 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

cmd2 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cmd2 is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

cmd2 releases are available to install and integrate.

Deployable package is available in PyPI.

Build file is available. You can build the component from source.

Installation instructions, examples and code snippets are available.

It has 19253 lines of code, 1699 functions and 118 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed cmd2 and discovered the below as its top functions. This is intended to give you an instant insight into cmd2 implemented functionality, and help decide if they suit your requirements.

Performs completions .
Wraps the given text into the wrapped string .
Generate the example tables .
Parse a string into a statement .
Decorate a command function with argparse .
Add an argument wrapper .
Align text to given alignment .
Format the usage string .
Completes an argument .
Return the style of the given value .

Get all kandi verified functions for this library.

cmd2 Key Features

No Key Features are available at this moment for cmd2.

cmd2 Examples and Code Snippets

No Code Snippets are available at this moment for cmd2.

Community Discussions

Trending Discussions on cmd2

Executing execvp() in Child process after fork() still taking over parent process?

Proper way to use Numeric type bounds for classes in scala

monaco-editor tokenizer do not support "ignore case" regex

Use subprocess to open terminal and run a command

How to have nested command groups use the same name for the same level of subcommands but different implementation in click?

How to run a R script twice a day?

How to utilize subprocess when invoking sas code in python on Linux server

pip install pythonnet errored out with exit status 1 on Windows 10 (Python 3.10.1)

ANTLR4 handling continuations for "any data"

Python argparse: How to make an initial parameter determine how many parameters come after?

QUESTION

Executing execvp() in Child process after fork() still taking over parent process?

Asked 2022-Apr-07 at 09:06

I'm executing two bash command ps (which is valid bash command to show processes info) and abc (Invalid bash command) using execvp() inside a child process after creating it with by fork()

The problem is once execvp() fails parent process is taken over by child process as we can from the output of screenshot.

I had to type exit twice to exit out of infinite while loop. What's happening? I'm correctly executing execvp() inside a child process yet main(parent) process is taken over by child process?

Can anyone explain this behaviour & how I can fix this ? If execvp() fails I do not want that child process to take over parent process. How to handle this?

...

ANSWER

Answered 2022-Apr-07 at 09:06

The problem is that if execvp fails, you return to the main function in your child process. That leads to both the original (parent) and child process will continue in the loop.

If execvp fails you should probably call exit to exit the child process.

Also note that in the parent process the ExecCommand function doesn't return anything at all. If your compiler doesn't complain about that you need to enable more warnings when building.

Source https://stackoverflow.com/questions/71777727

QUESTION

Proper way to use Numeric type bounds for classes in scala

Asked 2022-Mar-29 at 21:38

General question: What is the proper way to define a generic class typed with a type which is Numeric, ideally without using any implicit in Scala 2?

Specific example: consider the following toy class which is built around Integer sequence:

...

ANSWER

Answered 2022-Mar-29 at 21:38

Why couldn't compiler resolve method plus for T, even though it is declared as Numeric in the class definition?

First, because T IS NOT a Numeric; rather it has an instance of Numeric typeclass associated with it
Second, even if T would be a Numeric, it would not have a + method; because, again, that is not how typeclasses work.
Check this: https://gist.github.com/BalmungSan/c19557030181c0dc36533f3de7d7abf4

Is there any better way to solve this issue without use of ugly boilerplate implicitly[Numeric[T]].plus?

Yes, just import the extension methods: import Numeric.Implicits._ either at the top level or inside the class or the method.

Could we, in general, avoid implicit's to handle such cases in scala?

[T: Numeric] is just sugar syntax for (implicit ev: Numeric[T]) so no, you can't avoid implicits

Which is fine, really.

Source https://stackoverflow.com/questions/71668919

QUESTION

monaco-editor tokenizer do not support "ignore case" regex

Asked 2022-Mar-22 at 16:04

The tokenizer in monaco-editor do not seem to support 'ignore case' i flag in regex. Sample code below,

To replicate, you can paste this in playground and try running yourself.

...

ANSWER

Answered 2022-Mar-22 at 16:04

Adding ignoreCase:true to the options should work.

Editor Reference

Source https://stackoverflow.com/questions/71575003

QUESTION

Use subprocess to open terminal and run a command

Asked 2022-Feb-27 at 04:09

I want to open a new terminal window and run a simple command such as echo hello world or python myscript.py. However all I have achieved is opening a new terminal in which none of my commands are run. Below are some examples of things I have tried:

...

ANSWER

Answered 2022-Feb-27 at 04:09

Try this:

Source https://stackoverflow.com/questions/71281841

QUESTION

How to have nested command groups use the same name for the same level of subcommands but different implementation in click?

Asked 2022-Feb-18 at 07:30

I am using click 8.0.3

I'm reading this https://click.palletsprojects.com/en/8.0.x/commands/#merging-multi-commands but I am still stumped.

What I want

i want to be able to have this

...

ANSWER

Answered 2022-Feb-16 at 10:14

I got it working with the following code. Basically, create a top level cli group, and two nested groups that'll be added as commands, cli1 and cli2. Defining the methods is easy enough, as can be seen by new_cli1 and new_cli2. By default, click sources the command name from the method name, but you do have the option of customising that by passing in the name to the command method explicitly, as we've done here.

Although, you can use the CommandCollection provided by click rather than explicitly adding cli1 and cli2. Not sure about the lazy loading, however.

Source https://stackoverflow.com/questions/71122035

QUESTION

How to run a R script twice a day?

Asked 2022-Feb-08 at 23:31

I had a R script configured to run via cron every day at 10am

...

ANSWER

Answered 2022-Feb-08 at 20:25

You still can use your original line, just change 10 to 10,22.

Source https://stackoverflow.com/questions/71040387

QUESTION

How to utilize subprocess when invoking sas code in python on Linux server

Asked 2022-Jan-26 at 21:17

I am trying to run a SAS program on linux using python. This server has SAS installed (version 9.4). And python version I have is 3.7.3.

I learned there is a library saspy which I could use however my project does not have access to this library. So, I found another alternative, my intension is to invoke the sas program in python and get the return code when it is successfully completed. This Sas program usually takes 1hr to complete.

So, I would like to use the return code when it is successful and later would like to notify myself through an email. I wrote the below code (sample) and I unable to make the subprocess work ? Any help is appreciated. Thanks

...

ANSWER

Answered 2022-Jan-26 at 16:56

subprocess.call is an older method of doing this, but it should work; per the documentation, you need to use the returncode attribute to access the return code.

You may be better off using subprocess.run(), which returns a CompletedProcess instance.

Either way, you probably should ensure that your shell command (which looks like a .bat file) actually returns the value from the SAS execution. If it uses call, for example (in Windows batch script), it may actually be running SAS in the background - which is consistent with what you're describing here, and also consistent with the filename (BGsas). You may want to use a different script to launch SAS in the foreground.

Source https://stackoverflow.com/questions/70858516

QUESTION

pip install pythonnet errored out with exit status 1 on Windows 10 (Python 3.10.1)

Asked 2022-Jan-25 at 06:17

According to the official Python.NET documention I'm supposed to install it using pip install pythonnet, this gives me an error however. I have upgraded the following packages trying to fix it:

pip
setuptools
wheel

This however didn't fix it and it's throwing some errors.

...

ANSWER

Answered 2022-Jan-01 at 04:35

Python.NET 2.5.2 only supports Python 3.8 or earlier. You might want to try 3.0.0 preview if you need it to run with 3.10.

Source https://stackoverflow.com/questions/70541782

QUESTION

ANTLR4 handling continuations for "any data"

Asked 2022-Jan-20 at 02:41

The grammar I need to create is based on the following:

Command lines start with a slash
Command lines can be continued with a hyphen as the last character (excluding whitespaces) on a line
For some commands I want to parse their parameters
For other commands I am not interested in their parameters

This works almost fine with the following (simplified) Lexer

...

ANSWER

Answered 2022-Jan-20 at 02:41

(For your example) You don't really need a CommandMode; it actually complicates things a bit.

T1Lexer.g4:

Source https://stackoverflow.com/questions/70742427

QUESTION

Python argparse: How to make an initial parameter determine how many parameters come after?

Asked 2022-Jan-18 at 23:38

I'd like to do the following, where the type specified dictates what parameters I can use after.

For example, for cmd1, I'd expect a param1 and param2.

For cmd2, I'd expect a param3, param4, param5, and param6.

For cmd3, I'd expect no parameters.

If I don't specify the expected parameters, an error should be shown.

Also, is there someway I could make it so that issuing a -h would show the different combinations allowed?

In all situations, there may be other tags that could be specified, such as --id 5 or --config 1.

Is this possible with python's argparse?

I.e.,

...

ANSWER

Answered 2022-Jan-18 at 22:28

You should be able to use nargs, I believe. For example:

Source https://stackoverflow.com/questions/70763135

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install cmd2

On all operating systems, the latest stable version of cmd2 can be installed using pip:. cmd2 works with Python 3.6+ on Windows, macOS, and Linux. It is pure Python code with few 3rd-party dependencies. For information on other installation options, see [Installation Instructions](https://cmd2.readthedocs.io/en/latest/overview/installation.html) in the cmd2 documentation.