def run_subprocess():
# Create the continuous terminal process
if Shell.is_windows():
proc = Popen('cmd.exe',
stdin=PIPE,
stdout=PIPE,
stderr=PIPE,
shell=False)
else:
proc = Popen('/bin/bash',
stdin=PIPE,
stdout=PIPE,
stderr=PIPE,
shell=False)
# Cannot communicate multiple times
# out, err = proc.communicate(input=b'cd ./storage\n')
# print(out, err, proc.poll())
# out, err = proc.communicate(input=b'dir\n')
# print(out, err)
proc.stdin.write(b'cd ./storage\n')
proc.stdin.flush()
print(proc.poll(), proc.returncode)
proc.stdin.write(b'dir\n')
proc.stdin.flush()
print(proc.poll(), proc.returncode)
def run_manual():
import io
import sys
from shell_proc import Shell
# Initialize and run tasks
sh = Shell('mkdir storage',
'cd storage',
'echo Hello World! > hello.txt',
stderr=io.StringIO())
# Manually run tasks
if sh.is_windows():
sh('python -m venv ./winvenv')
sh('call ./winvenv/Scripts/activate.bat')
else:
pwd = sh('pwd')
sh('cd ~')
sh('python3 -m venv ./lxvenv')
sh('source ./lxvenv/bin/activate')
sh('cd {}'.format(pwd.stdout))
# Not exactly success. If True no output was printed to stderr. Stderr could also be warning like need to update pip
results = sh.run('pip install requests')
print("***** Successful install: ", results.exit_code == 0)
if results.exit_code != 0:
sh.stderr.seek(0) # Move to start of io.StringIO()
err = sh.stderr.read() # All text collected into stderr from subprocess stderr
print(err, file=sys.stderr)
# sh.print_stderr() # Also available
sh.stdout = io.StringIO() # Start saving output for new tasks
results = sh('pip list')
print('***** Output Printed\n', results.stdout)
sh('pip -V')
print('pip -V =>', sh.last_command.stdout) # ... for some odd reason PyCharm terminal does not print this "\r\r\n"
print('All collected stdout')
sh.stdout.seek(0) # Move to start of io.StringIO()
print(sh.stdout.read(), end='', flush=True) # Print all read data
# Should close when finished to stop threads from reading stdout and stderr subprocess.PIPE
# (will close automatically eventually)
sh.close()