How to stop inifinite loop with specific key instead of keyboard Interrupt exception?

Simplified version of code is below. In the while loop I normally process data from serial port and measurement is not limited by time or any value. I want to stop execution with key anytime i need to stop.

try-except is easiest way but it will affect also main code it is implemented. It is not good option in my case. I couldn't find how to fit keyboard monitoring here enter link description hereinto class and also same for signals. I would like to insert an if-statement which calls other function in class to stop execution of loop. Any help would appreciated. Thanks

import time



class Something:



    def __init__(self):

        self.looping()



    def looping(self):

        i=0

        while True:

            i+=1

            time.sleep(1)

            print(i)



some=Something()

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

asked Nov 22 '18 at 10:14

B_C

1

Why would a try / except KeyboardInterrupt affect the rest of your code?

– roganjosh
Nov 22 '18 at 10:15

Old related: stackoverflow.com/questions/1335507/…

– gustavovelascoh
Nov 22 '18 at 10:16

You could create a second thread that changes a variable value on keyboardinput. And let the main thread run the while loop while variable True.

– van der Zon Stef
Nov 22 '18 at 10:24

add a comment |

import time



class Something:



    def __init__(self):

        self.looping()



    def looping(self):

        i=0

        while True:

            i+=1

            time.sleep(1)

            print(i)



some=Something()

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

asked Nov 22 '18 at 10:14

B_C

1

Why would a try / except KeyboardInterrupt affect the rest of your code?

– roganjosh
Nov 22 '18 at 10:15

Old related: stackoverflow.com/questions/1335507/…

– gustavovelascoh
Nov 22 '18 at 10:16

You could create a second thread that changes a variable value on keyboardinput. And let the main thread run the while loop while variable True.

– van der Zon Stef
Nov 22 '18 at 10:24

add a comment |

import time



class Something:



    def __init__(self):

        self.looping()



    def looping(self):

        i=0

        while True:

            i+=1

            time.sleep(1)

            print(i)



some=Something()

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

asked Nov 22 '18 at 10:14

B_C

import time



class Something:



    def __init__(self):

        self.looping()



    def looping(self):

        i=0

        while True:

            i+=1

            time.sleep(1)

            print(i)



some=Something()

python python-3.x while-loop infinite-loop pynput

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

asked Nov 22 '18 at 10:14

B_C

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

asked Nov 22 '18 at 10:14

B_C

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

edited Nov 22 '18 at 10:16

roganjosh

6,31731228

asked Nov 22 '18 at 10:14

B_C

asked Nov 22 '18 at 10:14

B_C

asked Nov 22 '18 at 10:14

B_C

1

Why would a try / except KeyboardInterrupt affect the rest of your code?

– roganjosh
Nov 22 '18 at 10:15

Old related: stackoverflow.com/questions/1335507/…

– gustavovelascoh
Nov 22 '18 at 10:16

You could create a second thread that changes a variable value on keyboardinput. And let the main thread run the while loop while variable True.

– van der Zon Stef
Nov 22 '18 at 10:24

add a comment |

1

Why would a try / except KeyboardInterrupt affect the rest of your code?

– roganjosh
Nov 22 '18 at 10:15

Old related: stackoverflow.com/questions/1335507/…

– gustavovelascoh
Nov 22 '18 at 10:16

You could create a second thread that changes a variable value on keyboardinput. And let the main thread run the while loop while variable True.

– van der Zon Stef
Nov 22 '18 at 10:24

Why would a try / except KeyboardInterrupt affect the rest of your code?

– roganjosh
Nov 22 '18 at 10:15

Old related: stackoverflow.com/questions/1335507/…

– gustavovelascoh
Nov 22 '18 at 10:16

You could create a second thread that changes a variable value on keyboardinput. And let the main thread run the while loop while variable True.

– van der Zon Stef
Nov 22 '18 at 10:24

add a comment |

1 Answer
1

active

oldest

votes

import time

class Something:

    def __init__(self):

        self.looping()



    def looping(self):

        i=0



        while True:

            try:

                i+=1

                time.sleep(1)

                print(i)

            except KeyboardInterrupt:

                break

some=Something()

edited Nov 22 '18 at 10:21

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

I did this but instead of this, i would like assign a key for break. not ctrl+c

– B_C
Nov 22 '18 at 10:25

add a comment |

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1 Answer
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active

oldest

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1 Answer
1

active

oldest

votes

import time

class Something:

    def __init__(self):

        self.looping()



    def looping(self):

        i=0



        while True:

            try:

                i+=1

                time.sleep(1)

                print(i)

            except KeyboardInterrupt:

                break

some=Something()

edited Nov 22 '18 at 10:21

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

I did this but instead of this, i would like assign a key for break. not ctrl+c

– B_C
Nov 22 '18 at 10:25

add a comment |

import time

class Something:

    def __init__(self):

        self.looping()



    def looping(self):

        i=0



        while True:

            try:

                i+=1

                time.sleep(1)

                print(i)

            except KeyboardInterrupt:

                break

some=Something()

edited Nov 22 '18 at 10:21

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

I did this but instead of this, i would like assign a key for break. not ctrl+c

– B_C
Nov 22 '18 at 10:25

add a comment |

import time

class Something:

    def __init__(self):

        self.looping()



    def looping(self):

        i=0



        while True:

            try:

                i+=1

                time.sleep(1)

                print(i)

            except KeyboardInterrupt:

                break

some=Something()

edited Nov 22 '18 at 10:21

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

import time

class Something:

    def __init__(self):

        self.looping()



    def looping(self):

        i=0



        while True:

            try:

                i+=1

                time.sleep(1)

                print(i)

            except KeyboardInterrupt:

                break

some=Something()

edited Nov 22 '18 at 10:21

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

edited Nov 22 '18 at 10:21

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

answered Nov 22 '18 at 10:17

Srce Cde

1,144511

I did this but instead of this, i would like assign a key for break. not ctrl+c

– B_C
Nov 22 '18 at 10:25

add a comment |

I did this but instead of this, i would like assign a key for break. not ctrl+c

– B_C
Nov 22 '18 at 10:25

I did this but instead of this, i would like assign a key for break. not ctrl+c

– B_C
Nov 22 '18 at 10:25

add a comment |

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