import os
from subprocess import Popen, PIPE
# changes directory to directory where input file is saved.
base = (os.getcwd())
string = rf"{base}\1"
os.chdir(string)
cmd = 'cmd.exe'
p = Popen(cmd, stdin=PIPE, stdout=PIPE, bufsize=0, shell=True)
p.stdin.write(rb"fdsinit\b_1")
p.stdin.write(b"fds_local -p 2 -o 2 b_1.fds")
p.stdin.close()
p.wait()

 cmd = 'cmd.exe'
p = Popen(cmd, stdin=PIPE, stdout=PIPE, bufsize=0, shell=True)

 from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(600, 320)
        MainWindow.setMinimumSize(QtCore.QSize(600, 320))
        MainWindow.setMaximumSize(QtCore.QSize(600, 320))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.widget = QtWidgets.QWidget(self.centralwidget)
        self.widget.setGeometry(QtCore.QRect(10, 10, 581, 301))
        self.widget.setObjectName("widget")
        self.gridLayout = QtWidgets.QGridLayout(self.widget)
        self.gridLayout.setContentsMargins(0, 0, 0, 0)
        self.gridLayout.setObjectName("gridLayout")
        self.label_4 = QtWidgets.QLabel(self.widget)
        self.label_4.setObjectName("label_4")
        self.gridLayout.addWidget(self.label_4, 7, 0, 1, 2)
        self.label_okORno = QtWidgets.QLabel(self.widget)
        self.label_okORno.setText("")
        self.label_okORno.setAlignment(QtCore.Qt.AlignCenter)
        self.label_okORno.setObjectName("label_okORno")
        self.gridLayout.addWidget(self.label_okORno, 2, 0, 1, 1)
        self.toolButton_fds = QtWidgets.QToolButton(self.widget)
        self.toolButton_fds.setObjectName("toolButton_fds")
        self.gridLayout.addWidget(self.toolButton_fds, 1, 1, 1, 1)
        self.toolButton_file = QtWidgets.QToolButton(self.widget)
        self.toolButton_file.setObjectName("toolButton_file")
        self.gridLayout.addWidget(self.toolButton_file, 4, 1, 1, 1)
        self.lineEdit_fds = QtWidgets.QLineEdit(self.widget)
        self.lineEdit_fds.setObjectName("lineEdit_fds")
        self.gridLayout.addWidget(self.lineEdit_fds, 1, 0, 1, 1)
        self.lineEdit_file = QtWidgets.QLineEdit(self.widget)
        self.lineEdit_file.setObjectName("lineEdit_file")
        self.gridLayout.addWidget(self.lineEdit_file, 4, 0, 1, 1)
        self.label_3 = QtWidgets.QLabel(self.widget)
        self.label_3.setObjectName("label_3")
        self.gridLayout.addWidget(self.label_3, 5, 0, 1, 2)
        self.label_2 = QtWidgets.QLabel(self.widget)
        self.label_2.setObjectName("label_2")
        self.gridLayout.addWidget(self.label_2, 3, 0, 1, 1)
        self.label = QtWidgets.QLabel(self.widget)
        self.label.setObjectName("label")
        self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
        self.pushButton_run = QtWidgets.QPushButton(self.widget)
        self.pushButton_run.setObjectName("pushButton_run")
        self.gridLayout.addWidget(self.pushButton_run, 9, 0, 1, 2)
        self.spinBox_p = QtWidgets.QSpinBox(self.widget)
        self.spinBox_p.setProperty("value", 4)
        self.spinBox_p.setObjectName("spinBox_p")
        self.gridLayout.addWidget(self.spinBox_p, 6, 0, 1, 2)
        self.spinBox_o = QtWidgets.QSpinBox(self.widget)
        self.spinBox_o.setProperty("value", 1)
        self.spinBox_o.setObjectName("spinBox_o")
        self.gridLayout.addWidget(self.spinBox_o, 8, 0, 1, 2)
        MainWindow.setCentralWidget(self.centralwidget)
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "RUN FDS"))
        self.label_4.setText(_translate("MainWindow", "Количество потоков/количесвто o-"))
        self.toolButton_fds.setText(_translate("MainWindow", "..."))
        self.toolButton_file.setText(_translate("MainWindow", "..."))
        self.label_3.setText(_translate("MainWindow", "Количество сеток/количесвто p-"))
        self.label_2.setText(_translate("MainWindow", "Абсолютный путь к файлу"))
        self.label.setText(_translate("MainWindow", "Абсолютный путь к папке установки fds"))
        self.pushButton_run.setText(_translate("MainWindow", "Запуск"))

 import os
from PyQt5 import QtWidgets, QtCore, QtGui
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QTableWidgetItem, QFileDialog
from UI.fds import Ui_MainWindow
import sys
import subprocess
class MyWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super(MyWindow, self).__init__()
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.setWindowIcon(QIcon('run.PNG'))
        self.ui.label_okORno.hide()
        self.path_file = ''
        self.count_p = 4
        self.count_o = 1
        self.files_fds = os.listdir(r'C:\Program Files')
        if 'firemodels' in self.files_fds:
            self.ui.label_okORno.show()
            self.ui.label_okORno.setStyleSheet("background-color:green; border-radius:5px")
            self.ui.label_okORno.setText('Необходимые для расчета файлы fds имеются')
        else:
            self.ui.label_okORno.show()
            self.ui.label_okORno.setStyleSheet("background-color:red; border-radius:5px")
            self.ui.label_okORno.setText('Программа fds не найдена. Выберете папку /firemodels/')
        self.run = 'fds_local -p 1 -o 1 job_name.fds'
        self.run_cmd1 = 'C:\Windows\System32\cmd.exe'
        self.run_cmd2 = '/k fdsinit'
        self.ui.toolButton_file.clicked.connect(self.showDialogOpen_file)
        self.ui.toolButton_fds.clicked.connect(self.showDialogOpen_fds)
        self.ui.spinBox_p.valueChanged.connect(self.updateLabel_p)
        self.ui.spinBox_o.valueChanged.connect(self.updateLabel_o)
        self.ui.pushButton_run.clicked.connect(self.runFds)
    def updateLabel_p(self, value):
        self.count_p = value
    def updateLabel_o(self, value):
        self.count_o = value
    def showDialogOpen_fds(self):
        fname = QFileDialog.getExistingDirectory()
        path_fds = fname
        self.ui.lineEdit_fds.setText(path_fds)
        self.files_fds = os.listdir(path_fds)
        if 'FDS6' in self.files_fds:
            self.ui.label_okORno.show()
            self.ui.label_okORno.setStyleSheet("background-color:green; border-radius:5px")
            self.ui.label_okORno.setText('Необходимые для расчета файлы fds имеются')
        else:
            self.ui.label_okORno.show()
            self.ui.label_okORno.setStyleSheet("background-color:red; border-radius:5px")
            self.ui.label_okORno.setText('Программа fds не найдена')
    def showDialogOpen_file(self):
        fname = QFileDialog.getOpenFileName(filter='*.fds')
        self.path_file = fname[0]
        self.ui.lineEdit_file.setText(self.path_file)
    def runFds(self):
        if self.ui.label_okORno.text() == 'Необходимые для расчета файлы fds имеются' and self.path_file[-3:] == 'fds':
            fds = self.path_file.split("/")
            vv = f'fds_local -p {self.count_p} -o {self.count_o} {fds[-1]}'
            # run_cmd = f'{self.run_cmd1} {vv} {self.run_cmd2}'
            cd = 'cd..'
            run_cmd = f'{self.run_cmd1} {self.run_cmd2}'
            # subprocess.call('cmd.exe && cd..', shell=True)
            subprocess.run(f'{run_cmd} | /k cd..', shell=True)
            # os.system(run_cmd)
        else:
            QtWidgets.QMessageBox.information(self, "ВНИМАНИЕ!", 'Вы не выбрали файл .fds или отсутствует программа fds')

 from subprocess import Popen,PIPE,STDOUT
def run_fds_local(options='',):
	start = ['cmd','/k','fdsinit']
	p = Popen(start, stdin=PIPE, stdout=PIPE, stderr = STDOUT, universal_newlines=True)
	out = p.communicate(input=f'fds_local {options}\n')
	return out
res = run_fds_local('-v')
print(res[0])

 type helpfds for help on running fds
(venv) D:\programming\telegramm_bot>fds_local -v
 Fire Dynamics Simulator
 Current Date     : October 19, 2021  12:23:49
 Revision         : FDS6.7.6-0-g5064c500c-release
 Revision Date    : Thu May 27 12:19:10 2021 -0400
 Compiler         : Intel ifort 2021.1
 Compilation Date : Tue 06/01/2021  11:25 AM
 MPI Enabled;    Number of MPI Processes:       1
 OpenMP Enabled; Number of OpenMP Threads:      1
 MPI version: 3.1
 MPI library version: Intel(R) MPI Library 2021.1 for Windows* OS
 Consult FDS Users Guide Chapter, Running FDS, for further instructions.
(venv) D:\programming\telegramm_bot>
Process finished with exit code 0

     def run_fds_local(self, options, path):
        # base = (os.getcwd())
        os.chdir(path)
        start = ['cmd', '/k', 'fdsinit']
        p = Popen(start, stdin=PIPE, stdout=PIPE, stderr=STDOUT, universal_newlines=True)
        print(p)
        # p = Popen(start, stdin=PIPE, stdout=PIPE, stderr=STDOUT)
        out = p.communicate(input=f'fds_local {options}\n')
        print(out)
        return out
    def runFds(self):
        if self.ui.label_okORno.text() == 'Необходимые для расчета файлы fds имеются' and self.path_file[-3:] == 'fds':
            fds = self.path_file.split("/")
            path = '/'.join(self.path_file.split("/")[:-1])
            self.run_fds_local(f'-p {self.count_p} -o {self.count_o} {fds[-1]}', path)
        else:
            QtWidgets.QMessageBox.information(self, "ВНИМАНИЕ!", 'Вы не выбрали файл .fds или отсутствует программа fds')

 from subprocess import Popen,PIPE,STDOUT
from threading import Thread
import time
import random
def run_fds_local(options=''):
	start = ['cmd','/k','fdsinit']
	with open('temp_data.txt','w') as f:
		p = Popen(start, stdin=PIPE, stdout=f,bufsize=0, stderr = STDOUT, universal_newlines=True)
		p.stdin.write(f'fds_local {options}\n')
		time.sleep(5)
		f.write('end')
def read_file():
	with open('temp_data.txt', 'r') as f:
		while True:
			line = f.readline()
			if line:
				print(line)
				if line == 'end':
					break
			else:
				time.sleep(0.5)
if __name__ == '__main__':
	fds_loc = Thread(target=run_fds_local,kwargs={'options':'-v'})
	fds_loc.start()
	
	read_file()
	fds_loc.join()