The subprocess.check_call(shlex.split(command)) actually return what I expect. It returns the result of gcloud projects list. However subprocess.check_output doesn't, in fact it returns nothing.
Can explain this?
Last edited by Neo; 09-19-2019 at 12:56 AM..
Reason: Added icode tags to discussion
Hi,
I am having a trivial doubt. Please see the below pipeline code sequence.
command1 | (command 2; commend 3)
I am aware that the command that follows pipe will run in the sub shell by the Unix kernel. But how about here? Since these set of commands are grouped under "parantheses", will... (6 Replies)
I have a cron on a Linux server that isn't executing properly.
CRON (with specific info replaced):
MAILTO=emailaddress@server.com
*/2 * * * * python /data/site/cron.py
OUTPUT:
python: can't open file '/data/site/cron.py
': No such file or directoryAdditional info
- The python path is... (3 Replies)
Hi Guys,
Just a question about subprocesses.. Lately one of our servers has started to throw out the following error:
SYSTEM ERROR: Too many subprocesses, cannot fork. Errno=12
We've already increased the threshold twice. Its now up to 8000 and the swap space has also been increased. We... (6 Replies)
Hi,
I am trying to run a shell script using subprocess in python.
I can run simple script with arguments using subprocess.But I am not able to embed xterm in subrocess command.
#!/usr/bin/python
import subprocess
subprocess.call()
Above code gives me error.
Please help me in... (2 Replies)
Hi guys,
I'm learning python and perl and i was trying to run from python a perl script using the subprocess module.
I have an issue that i don't understand regarding this.
I run this code:
#!/usr/bin/python
import subprocess
p2 = subprocess.Popen(,stdout=subprocess.PIPE)
output2 =... (2 Replies)
Greetings!
I set up a basic threading specimen which does the job:#!/usr/bin/python
import threading
class a(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
def run(self):
print("thread a finished")
class b(threading.Thread):
... (0 Replies)
Hi Experts,
Good morning.
I am trying to convert my hello.py to hello .exe file.
I followed the steps as mentioned in the documentation but getting errors in the end. Please help.
What I did as below--
Created hello.py file
print ("Hello world!")
raw_input('')
Then... (0 Replies)
I have a string like below
Note: I have have a single to any number of comma "," seperated string assigned to jdbc_trgt variable.
I need to split jdbc_trgt using comma(,) as the delimiter.
I tried the below but it fails as i dont know how can i read each split string iterately.
for... (4 Replies)
Discussion started by: mohtashims
4 Replies
LEARN ABOUT BSD
lisp
LISP(1) General Commands Manual LISP(1)NAME
lisp - lisp interpreter
SYNOPSIS
lisp
DESCRIPTION
Lisp is a provisional lisp interpreter. It only runs in eval mode. Built in functions are named in lower case, and case is distinguished.
It is being transmuted from a subset of lisp as provided by the Harvard UNIX lisp in use at UCB, to a subset of MIT's MACLISP.
The following functions are provided as machine code:
Lambda functions:
atom dptr load putd rplacd
bcdp drain null putprop set
car eq numberp ratom terpr
cdr equal outfile read
close eval patom readc
concat get pntlen retbrk
cons getd portp return
cont infile print rplaca
Nlambda functions (possibly simulating ones which are normally lambdas):
add1 difference onep quotient zerop
and exit or reset
break go plus setq
cond minus product sub1
cond mod prog sum
def not quote times
The following functions are provided as lisp code (and at the moment must be read in by saying (load 'auxfns):
add copy length numbp
append defevq linelength pp_etc
apply* defprop member reverse
charcnt defprop memcar terpri
chrct diff memcdr
conc last nconc
All of the above functions are documented in the ``Harvard Lisp Manual.''
The following functions are provided as in MIT's MACLISP.
alphalessp do mapc setsyntax
apply explodec mapcar throw
ascii exploden prog2 tyi
catch funcall progn tyipeek
defun implode progv tyo
``Hairy control structure'' is provided by the Nlambda (process command inport outport) where command is an atom whose print name is some
command that you would wish typed at the terminal, e.g. ``neqn | nroff -ms''; where inport and outport are atoms which will be bound to
port descriptors for use in communication with the subprocess. Inport is a port to a pipe which will be read by the subprocess as its
standard input. If Inport is nil (or not present), the subprocess inherits the standard input, and lisp waits for the subprocess to die.
If Inport is the atom t lisp continues without waiting.
AUTHORS
Originally written by Jeff Levinsky, Mike Curry, and John Breedlove. Keith Sklower made it work and is maintaining the current version.
The garbage collector was implemented by Bill Rowan.
SEE ALSO
Harvard UNIX Lisp Manual
MACLISP Manual
UCB Franz Lisp Manual
BUGS
The status bits for setsyntax are not the same as for MACLISP.
Closing down a pipe doesn't always seem to work correctly.
Arrays are not implemented in version 1.
3rd Berkeley DistributionLISP(1)