[Python] Shell Command Library Wrappers

pyshell.py

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import sys import os import time import select import copy import subprocess import threading from threading import * ###################################################################### # ShellExecute without Thread ###################################################################### def ShellExecute(cmd, timeout=None): si = subprocess.STARTUPINFO() si.dwFlags |= subprocess.STARTF_USESHOWWINDOW #|subprocess.STARTF_USESTDHANDLES si.wShowWindow = subprocess.SW_HIDE process = subprocess.Popen(cmd , shell=True #, stdin=subprocess.DEVNULL , stdout=subprocess.PIPE , stderr=subprocess.PIPE , startupinfo=si ) outs, errs = process.communicate(timeout=timeout) #print(outs.decode("euc-kr").replace('\r','')) #print(errs.decode("euc-kr").replace('\r','')) #print('poll:: return: ' + str(process.poll())) #print('code:: return: ' + str(process.returncode)) return process.returncode, outs, errs ''' def ShellExecuteRealTime_V2(cmd, timeout=None): si = subprocess.STARTUPINFO() si.dwFlags |= subprocess.STARTF_USESHOWWINDOW #|subprocess.STARTF_USESTDHANDLES si.wShowWindow = subprocess.SW_HIDE process = subprocess.Popen(cmd , shell=True #, stdin=subprocess.DEVNULL , stdout=subprocess.PIPE , stderr=subprocess.PIPE , startupinfo=si ) stdouts = [] stderrs = [] while True: fds = [process.stdout.fileno(), process.stderr.fileno()] rv = select.select(fds, [], []) for fd in rv[0]: if fd == process.stdout.fileno(): chars = process.stdout.read() sys.stdout.write(chars.decode("euc-kr").replace('\r','')) stdouts.append(chars) if fd == process.stderr.fileno(): chars = process.stderr.read() sys.stderr.write(chars.decode("euc-kr").replace('\r','')) stderrs.append(chars) if p.poll() != None: break return process.returncode ''' def ShellExecuteRealTime(cmd, timeout=None): si = subprocess.STARTUPINFO() si.dwFlags |= subprocess.STARTF_USESHOWWINDOW #|subprocess.STARTF_USESTDHANDLES si.wShowWindow = subprocess.SW_HIDE process = subprocess.Popen(cmd , shell=True , stdin=subprocess.DEVNULL , stdout=subprocess.PIPE , stderr=subprocess.DEVNULL , startupinfo=si ) outs = b'' while True: char = process.stdout.read() # read(1), process.stderr.readline() if not char: break outs += char #sys.stdout.write(char.decode("euc-kr").replace('\r','')) return process.returncode, outs ###################################################################### # ShellCommand with small output string # # outs, errs = Popen.communicate(input=None, timeout=None) # # proc = subprocess.Popen(...) # try: # outs, errs = proc.communicate(timeout=15) # except TimeoutExpired: # proc.kill() # outs, errs = proc.communicate() # # Note: # The data read is buffered in memory, so do not use this method if the data size is large or unlimited. ###################################################################### class ShellExecuteThread(object): def __init__(self, cmd, timeout=None): self.cmd = cmd self.thread = None self.process = None self.timeout = timeout self.stdouts = None self.stderrs = None self.running = None self.lock = threading.Lock() def run(self, timeout=None): if timeout is not None: self.timeout = timeout def target(): self.running = True si = subprocess.STARTUPINFO() si.dwFlags |= subprocess.STARTF_USESHOWWINDOW # |subprocess.STARTF_USESTDHANDLES si.wShowWindow = subprocess.SW_HIDE self.process = subprocess.Popen(self.cmd , shell=True , stdout=subprocess.PIPE , stderr=subprocess.PIPE , startupinfo=si , bufsize=0 , universal_newlines=True , encoding='euc-kr' , text=True ) self.stdouts, self.stderrs = self.process.communicate(self.timeout) self.running = False self.thread = threading.Thread(target=target) self.thread.start() def runwait(self, timeout=None): self.run(timeout) self.thread.join(self.timeout) if self.thread.is_alive(): self.process.terminate() self.thread.join() return self.process.returncode, self.stdouts, self.stderrs def run_stdouts(self): def target(): self.running = True word = b'' while True: char = self.process.stdout.read(1) #readline() if not char: break if self.process.poll() is not None: break; word += char if char.isspace(): self.lock.acquire() self.stdouts += word self.lock.release() word = b'' if len(word) > 0: self.lock.acquire() self.stdouts += word self.lock.release() self.running = False si = subprocess.STARTUPINFO() si.dwFlags |= subprocess.STARTF_USESHOWWINDOW si.wShowWindow = subprocess.SW_HIDE self.process = subprocess.Popen(self.cmd , shell=True , stdout=subprocess.PIPE , startupinfo=si ) self.stdouts = b''; self.thread = threading.Thread(target=target) self.thread.start() def get_stdouts(self): if self.running == True or len(self.stdouts) > 0 is None: self.lock.acquire() outs = self.stdouts #copy.deepcopy(self.stdouts) self.stdouts = b''; self.lock.release() return outs else: return None def get_returncode(self): if self.process is not None: return self.process.returncode return None ########################################################################### ## ShellExecute with WorkerThread ########################################################################### class WorkerThread(Thread): def __init__(self, cmd, timeout=None): Thread.__init__(self) self.cmd = cmd self.stoprequest = threading.Event() self.start() def run(self): import subprocess global threadLock global line si = subprocess.STARTUPINFO() si.dwFlags |= subprocess.STARTF_USESHOWWINDOW si.wShowWindow = subprocess.SW_HIDE process = subprocess.Popen(self.cmd , shell=False , stdin=subprocess.DEVNULL , stdout=subprocess.PIPE , stderr=subprocess.PIPE , startupinfo=si ) while not self.stoprequest.isSet(): char = process.stdout.read(1) #process.stderr.readline() if not char: break if process.poll() is not None: break; if char != b'\r': # accept only b'\n' self.lock.acquire() self.stdouts += char self.lock.release() errcode = process.returncode if errcode is not None: raise Exception('cmd %s failed, see above for details', cmd) process.terminate() def stop(self, timeout=None): self.stoprequest.set() super(WorkerThread, self).join(timeout) def main(): #code, outs, errs = ShellExecute("dir C:\\") #print( outs.decode("euc-kr").replace('\r','') ) #code, outs = ShellExecuteRealTime("dir C:\\") #print( outs.decode("euc-kr").replace('\r','') ) #th = ShellExecuteThread("dir C:\\") #code, outs, errs = th.runwait() #print( outs.decode("euc-kr").replace('\r','') ) th = ShellExecuteThread("dir C:\\") th.run_stdouts() while True: outs = th.get_stdouts() if outs is None: break if len(outs) > 0: print( outs.decode('euc-kr').replace('\r','') ) #th = ShellExecuteThread("dir C://") #th.run() if __name__ == '__main__': print( os.getcwd() ) main() exit(0)