You obviously can use subprocess.communicate but I think you are looking for real time input and output. readline was blocked because the process is probably waiting on your input. You can read character by character to overcome this like the following: import subprocess import sys process = subprocess.Popen( cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE ) while True: out … Read more
From the documentation at http://docs.python.org/library/subprocess.html: Popen.pid The process ID of the child process. Note that if you set the shell argument to True, this is the process ID of the spawned shell. If shell is false, it should behave as you expect, I think. If you were relying on shell being True for resolving executable … Read more
subprocess.Popen takes a cwd argument to set the Current Working Directory; you’ll also want to escape your backslashes (‘d:\\test\\local’), or use r’d:\test\local’ so that the backslashes aren’t interpreted as escape sequences by Python. The way you have it written, the \t part will be translated to a tab. So, your new line should look like: … Read more
Pass arguments as a list, see the very first code example in the docs: import subprocess subprocess.check_call([‘/my/file/path/programname.sh’, ‘arg1’, ‘arg2’, arg3]) If arg3 is not a string; convert it to string before passing to check_call(): arg3 = str(arg3).
Update with code that appears not to work (on windows anyway) class ThreadWorker(threading.Thread): def __init__(self, callable, *args, **kwargs): super(ThreadWorker, self).__init__() self.callable = callable self.args = args self.kwargs = kwargs self.setDaemon(True) def run(self): try: self.callable(*self.args, **self.kwargs) except wx.PyDeadObjectError: pass except Exception, e: print e if __name__ == “__main__”: import os from subprocess import Popen, PIPE def … Read more
source is not an executable command, it’s a shell builtin. The most usual case for using source is to run a shell script that changes the environment and to retain that environment in the current shell. That’s exactly how virtualenv works to modify the default python environment. Creating a sub-process and using source in the … Read more
You can use a pipe to read the data from the program’s stdout and write it to all the places you want: import sys import subprocess logfile = open(‘logfile’, ‘w’) proc=subprocess.Popen([‘cat’, ‘file’], stdout=subprocess.PIPE, stderr=subprocess.STDOUT) for line in proc.stdout: sys.stdout.write(line) logfile.write(line) proc.wait() UPDATE In python 3, the universal_newlines parameter controls how pipes are used. If False, … Read more
It depends on the version of Python you are using. In Python3.3, the arg is saved in proc.args: proc = subprocess.Popen(….) print(“the commandline is {}”.format(proc.args)) In Python2.7, the args not saved, it is just passed on to other functions like _execute_child. So, in that case, the best way to get the command line is to … Read more
Try add an extra parameter shell=True to the Popen call.
Relative paths (paths containing slashes) never get checked in any PATH, no matter what you do. They are relative to the current working directory only. If you need to resolve relative paths, you will have to search through the PATH manually. If you want to run a program relative to the location of the Python … Read more