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`envoy`-like abstraction of subprocess [closed]

I was really excited about the Envoy project when I first heard about it. Having a sane API for subprocess is something I very much need.

However, envoy seems not to be maintained anymore. The last commit was made 10 months ago, and the last release was made 2 years ago. There are a bunch of serious bugs in it that I reported a long time ago, but were not fixed.

I'm looking for an alternative. Does anyone know of a Python package that does the same thing as Envoy (gives a good API to subprocess), except it's actively maintained?

Execute bash file from Python

I want to execute a shell script file from within Python. I am currently using Envoy to do this:

envoy.run('./scripts.sh')

But it throws me a No such file or directory error.

I am wondering, under which path is the above file executed? How can I make the above script run? It is located in the same directory as the Python script.

How to use wildcards with Envoy

I'm trying to run this command through KennethReitz's Envoy package:

$ sqlite3 foo.db 'select * from sqlite_master' 

I've tried this:

r = envoy.run("sqlite3 foo.db 'select * from sqlite_master'")
sqlite3: Error: too many options: "*"

and this:

r = envoy.run(['sqlite3', 'foo.db', 'select * from sqlite_master'])
AttributeError: 'NoneType' object has no attribute 'returncode'

additional quoting & escaping doesn't seem to help. Any suggestions?

FYI: This is what I had to do for now:

cmd = "sqlite3 %(database)s 'select * from sqlite_master'" % locals()
os.system(cmd)

Note that this is a contrived example, and that most of the unix shell commands that I'd like to issue aren't just a simple select that could be easily done via SQLAlchemy.

how to use envoy package in python?

I have installed package envoy. I ran the script but a windows error occured .I commented envoy.run then the full script runs but when I remove the comment, error occurs.

 import envoy

 # This data is checked-in to the repository and is a compressed 
 # version of the output from Example 3

 F = 'resources/ch06-mailboxes/data/enron.mbox.json.bz2'

 r = envoy.run("bunzip2 %s" % (F,))
 print r.std_out
 print r.std_err

traceback of script:

 Exception in thread Thread-9:
Traceback (most recent call last):
 File "C:\Users\sachin\Anaconda\lib\threading.py", line 810, in __bootstrap_inner
self.run()
File "C:\Users\sachin\Anaconda\lib\threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File "C:\Users\sachin\Anaconda\lib\site-packages\envoy\core.py", line 40, in target
bufsize=0,
File "C:\Users\sachin\Anaconda\lib\subprocess.py", line 709, in __init__
errread, errwrite)
File "C:\Users\sachin\Anaconda\lib\subprocess.py", line 957, in _execute_child
startupinfo)
WindowsError: [Error 2] The system cannot find the file specified

How to avoid zombie process with envoy.connect?

I just discovered the 'envoy' module, a wrapper for python subprocess made by the creator of requests.

I have a problem with the 'connect' function: everytime I use it, it results in a zombie process and I can't get the status_code or the result.

c=envoy.connect("ls -al")
c.status_code == None
 True

If I do a 'ps -ef|grep thepid', I get a 'defunct' pid.

I can kill the zombie by doing a os.wait() or a c._process.wait(), but I can't get the result (stdout) of my command...

Any idea?

Using rm * (wildcard) in envoy: No such file or directory

I'm using Python and Envoy. I need to delete all files in a directory. Apart from some files, the directory is empty. In a terminal this would be:

rm /tmp/my_silly_directory/*

Common sense dictates that in envoy, this translates into:

r = envoy.run('rm /tmp/my_silly_directory/*')

However:

r.std_err -> "rm: cannot remove `/tmp/my_silly_directory/*': No such file or directory"

Naturally there are alternatives to using envoy in this case, I am simply wondering why it doesn't work.

Any clues?