Source

aurum / python / aurum / utils.py

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# XXX This should throw an exception if it is unusable
from subprocess import Popen, PIPE
from sys import stderr
def readsystem(cmd, cwd=None):
    if not cwd:
        cwd=None
    p=Popen(cmd, shell=False, stdout=PIPE, stderr=PIPE, cwd=cwd)
    lines=[]
    lastnl=False
    for line in p.stdout:
        lastnl=(line[-1]=='\n')
        lines.append((line[:-1] if lastnl else line).replace('\0', '\n'))
    if lastnl:
        lines.append('')
    exit_code=p.poll()
    stderr.write(p.stderr.read())
    return lines, exit_code

def readlines(cmd, cwd=None):
    p=Popen(cmd, shell=False, stdout=PIPE, stderr=None, cwd=cwd)
    for line in p.stdout:
        yield line[:-1]

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